GraphViz via PHP on AlmaLinux Dot Colour Wheel Tutorial

We’ve discovered another item to add to our list of GraphViz guises, adding …

the recent, alas now deprecated, Google Charts Image Charts GraphViz option means of drawing SVG graphics within an HTML image … we’ve known about before about yesterday …

today’s interest, that being PHP Image GraphViz via Pear on AlmaLinux install, via the AlmaLinux cPanel “Module Installers” Pear installer page, means by which we can use GraphViz calls in PHP code … and, for the future …

GraphViz installs for Python via pip

GraphViz via Dot language via command line

… and we host that in PHP, starting, today, down this road, taking the Colour Wheel of https://graphviz.org/Gallery/neato/color_wheel.html as an example of “Dot” language GraphViz code (we’ve called colour_wheel.dot, thanks), made use of, after user supplied amendments as required, on the AlmaLinux command line, such as …

/usr/bin/dot -Tsvg /tmp/colour_wheel__114_74_162_103.dot > /home/rjmprogr/public_html/doctest-output/my-cc.gv.svg 2>> /home/rjmprogr/public_html/colour_wheel.bad

… further to yesterday’s Python GraphViz via PHP on AlmaLinux Family Tree Recall Tutorial.

So please try the “how we got there” dot_colour_wheel.php PHP hosting Dot first go Colour Wheel web application, acting like a Colour Picker colour selector for our canvas element interfacing tool.

Previous relevant Python GraphViz via PHP on AlmaLinux Family Tree Recall Tutorial is shown below.

Python GraphViz via PHP on AlmaLinux Family Tree Recall Tutorial

Further to yesterday’s Python GraphViz via PHP on AlmaLinux Family Tree Image Tutorial …

you go to all the effort of linking images with associated GraphViz nodes … means …
you don’t want to have to do it again … so …
why don’t we allow a “recall functionality” … huh?! … !?huh …
let’s offer a new Save button … that if clicked/tapped …
updates any web server SVG files with any image data linked in …
<?php
if (isset($_POST['newablzero']) && isset($_POST['infile'])) { $sg='</svg>'; $infis=str_replace('+',' ',urldecode($_POST['infile'])); if (file_exists($infis)) { if (strpos($infis, 'doctest-output') !== false) { $suffile='/doctest-output' . explode('doctest-output', $infis)[1]; if (strlen($_POST['newablzero']) > 0) { $excont=file_get_contents($infis); if (strpos($excont, '</svg>') !== false) { if (strpos($excont, '</g>') !== false) { $sgs=explode('</g>', $excont); $sg='</g>' . $sgs[-1 + sizeof($sgs)]; } $newcont=plusdata(str_replace('+',' ',urldecode($_POST['newablzero']))); if (strpos($excont, $newcont) === false) { $newercont=str_replace($sg, $newcont . $sg, $excont); $outfis=rtrim(dirname(__FILE__), DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . str_replace('doctestoutput','doctest-output',str_replace('-','',$infis)); file_put_contents($outfis, $newercont); echo "<html><body onload=\" parent.setAVal('saved_family_tree_" . server_remote_addr() . str_replace('/','_',$_POST['infile']) . "-' + parent.document.getElementById('ititle').value.replace(/\-/g,'_').replace(/\ /g,'_'), top.document.URL.split(':')[0] + '://' + '" . $_SERVER['SERVER_NAME'] . $suffile . "'); parent.cookieAVal('saved_family_tree_', true); \"></body></html>"; exit; } } } else { $excont=file_get_contents($infis); $outfis=rtrim(dirname(__FILE__), DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . str_replace('doctestoutput','doctest-output',str_replace('-','',$infis)); file_put_contents($outfis, $excont); echo "<html><body onload=\" parent.setAVal('saved_family_tree_" . server_remote_addr() . str_replace('/','_',$_POST['infile']) . "-' + parent.document.getElementById('ititle').value.replace(/\-/g,'_').replace(/\ /g,'_'), top.document.URL.split(':')[0] + '://' + '" . $_SERVER['SERVER_NAME'] . $suffile . "'); parent.cookieAVal('saved_family_tree_', true); \"></body></html>"; exit; } } } exit; }
?>
… (in an SVG version with no – “minuses” in it’s file name) … so that …
storing in window.localStorage is a simple matter of name=value association where value is a simple RJM Programming domain absolute SVG URL (with the “minuses”, but they are taken out in the first argument of the window.open first argument …
<?php echo ”
function gotothis(inu) { if (inu.trim() != '') { if (inu.indexOf('HttP') == 0) { var toe=null; if (document.getElementById('sells').innerHTML.indexOf(inu + '\">') != -1) { toe=prompt('Please enter email address or SMS number to share ' + document.getElementById('sells').innerHTML.split(inu + '\">')[1].split('<')[0].replace('Email or SMS ','') + ' with.', ''); } else { toe=prompt('Please enter email address or SMS number to share with.', ''); } if (toe == null) { toe=''; } if (toe.indexOf('@') != -1) { if (document.getElementById('sells').innerHTML.indexOf(inu + '\">') != -1) { document.getElementById('myaemailsms').href='mailto:' + toe.trim() + '?subject=' + encodeURIComponent(document.getElementById('sells').innerHTML.split(inu + '\">')[1].split('<')[0].replace('Email or SMS ','')) + '&body=' + encodeURIComponent(inu.replace('HttP','http').split('#')[0].replace(/\-/g,'').replace('doctestoutput','doctest-output')); document.getElementById('myaemailsms').click(); } else { document.getElementById('myaemailsms').href='mailto:' + toe.trim() + '?subject=' + encodeURIComponent('Family Tree') + '&body=' + encodeURIComponent(inu.replace('HttP','http').split('#')[0].replace(/\-/g,'').replace('doctestoutput','doctest-output')); document.getElementById('myaemailsms').click(); } } else if (toe.trim() != '') { if (toe.trim().replace(/0/g,'').replace(/1/g,'').replace(/2/g,'').replace(/3/g,'').replace(/4/g,'').replace(/5/g,'').replace(/6/g,'').replace(/7/g,'').replace(/8/g,'').replace(/9/g,'') == '') { document.getElementById('myaemailsms').href='sms:' + toe.trim() + '&body=' + encodeURIComponent(inu.replace('HttP','http').split('#')[0].replace(/\-/g,'').replace('doctestoutput','doctest-output')); document.getElementById('myaemailsms').click(); } } document.getElementById('sells').value=''; } else if (inu.indexOf('HTTP') == 0) { if (inu.indexOf('#saved_family_tree_') != -1) { deleteAVal(inu.split('#')[eval(-1 + inu.split('#').length)], encodeURIComponent(inu.replace('#' + inu.split('#')[eval(-1 + inu.split('#').length)], '').replace('HTTP','http'))); cookieAVal('saved_family_tree_', true); } } else { woo=window.open(inu.replace(/\-/g,'').replace('doctestoutput','doctest-output').replace('http:','').replace('https:',''), '_blank', 'top=50,left=50,width=800,height=800'); } } }
“; ?>
) … to open GraphViz SVGs in a new window or email or SMS them and an option to stop their recall in that intersessional and intrasessional (also via a right hand cell double click) way

As well, onto the progress cursor (which is of no use on mobile platforms) method of flagging to the user they should wait, we add an animated “Draw” button border animation Javascript function …

<?php echo ”
function animbord() { var bcolsare=['green','#F0F8FF','#F0FFFF','#F0F0E0','#F0FFF0','#FFFFF0','#FFF0E0','#FFFFE0','#F0FFF0','#FFFFFF','#F0F0F0','#F0F7FF','#FFF8F0','#FFF0F0','#E0FFFF','#FFFFE0']; document.getElementById('mysub').style.border='3px dotted ' + bcolsare[lastj]; lastj++; if (lastj >= eval('' + bcolsare.length)) { lastj=0; } setTimeout(animbord, 200); }
“; ?>

As the user enters in any image URL, we allow a hash delimiting user answer idea whereby they can use an opacity that is not the 0.6 default value in the changed PHP family_tree.php Family Tree creation.

Previous relevant Python GraphViz via PHP on AlmaLinux Family Tree Image Tutorial is shown below.

Python GraphViz via PHP on AlmaLinux Family Tree Image Tutorial

So far with our GraphViz usages, there have been no images, within any SVG output created. Today, at least with the Family Tree functionality, we want to allow image URL user entered imagery to overlay SVG node elements, using that node’s positioning to guide where this overlayed image should be placed, further to yesterday’s Python GraphViz via PHP on AlmaLinux Family Tree Tutorial.

Is it Javascript DOM helping with this? Yes, we host SVG GraphViz output within HTML iframe elements, where (in the spirit of “Client Pre-Emptive Iframe” thinking), which have an onload event Javascript function looking like …

<?php echo ”
function checksvg(iois) { var gs=[]; if (iois != null) { // check out window.svgDocument var aconto = (iois.contentWindow || iois.contentDocument); if (aconto != null) { //alert(1); if (aconto.document) { aconto = aconto.document; gs=aconto.getElementsByTagName('g'); if (eval('' + gs.length) > 0) { gzero=gs[0]; for (var sd=0; sd<gs.length; sd++) { gs[sd].onclick=function(event){ parent.svgit(event.target, ''); }; gs[sd].ondblclick=function(event){ parent.svgit(event.target, 'ask'); }; } } gs=aconto.getElementsByTagName('svg'); if (eval('' + gs.length) > 0) { szero=gs[0]; for (var sd=0; sd<gs.length; sd++) { gs[sd].onclick=function(event){ parent.svghost(event.target, ''); }; } } console.log(gs.length); console.log(aconto); } //alert(11); if (aconto.body != null) { iois=iois; //alert('yay!'); } } if (gzero) { gzero=gzero; " . (strlen($addimg) == 0 ? $addimg : ' gzero.innerHTML+="' . $addimg . '"') . " if (aimg != '') { eval(' gzero.innerHTML+=\"' + aimg + '\"'); } } } }
“; ?>

… relying on iois.contentDocument (as our reading said would help) before any of our aconto.body thinking which suits (our usual) HTML content with the relevant iframe hosting element. From there on, Javascript DOM principles can help modify and scour SVG content, and make use of new Javascript functions, as per …

<?php echo ”
function svghost(svgheo, imgc) { if (9 == 8) { if (gzero) { gzero.innerHTML+=\"<image x='0' y='0' href='/camel.png'></image>\"; } else { svgheo.innerHTML+=\"<image x='0' y='0' href='/camel.png'></image>\"; } } } function psvgit() { svgit(lastsvgeo, lastimgc); } function svgit(svgeo, imgc) { var pres=''; lastsvgeo=svgeo; lastimgc=imgc; if (('' + svgeo.outerHTML).indexOf('<text') == 0) { if ((svgeo.innerHTML.toHtmlEntities().split('&')[0].split('(')[0].split('<')[0]).replace('%20',' ').replace('+',' ').indexOf(' ') != -1 && lasturl != '//thatsthem.com/name/' + encodeURIComponent(svgeo.innerHTML.toHtmlEntities().split('&')[0].split('(')[0].split('<')[0])) { lasturl='//thatsthem.com/name/' + encodeURIComponent(svgeo.innerHTML.toHtmlEntities().split('&')[0].split('(')[0].split('<')[0]) window.open('//www.google.com/search?sca_esv=8957a51bd870705f&sxsrf=ADLYWIL9Z95Y2XILCVHy1Ep_vA8UA0HVLw:1728014294038&q=' + encodeURIComponent(svgeo.innerHTML.toHtmlEntities().split('&')[0].split('(')[0].split('<')[0]) + '&udm=2&fbs=AEQNm0CrHVBV9axs7YmgJiq-TjYcvrKLYvLdNLLD2b8MCfaxte6rE3yH_shvJRqV-Iqr8JJvO9luGxMyf8tABHRE_ER5WVi_ouuYD0ZGCgonp8RpBmOUpTB-X6dVFbJc8KMdvjlHxs0_OJiYCY4-Y60oHTMiC_1a9mkGkMIYHO4XqP68ipa4P5rJaQCtA4WPne6f0aAKhdyAMTPbTsWJEdFYpNvI5RzOgw&sa=X&ved=2ahUKEwjCwabx6vOIAxWJ7DQHHQIOJBoQtKgLegQIDRAB&biw=1433&bih=739&dpr=2', '_blank', 'top=100,left=' + eval(-600 + screen.width) + ',width=600,height=600'); window.focus(); uselast=true; setTimeout(psvgit, 2000); return ''; } lasttext=svgeo; if (lastiurl.indexOf(\"<image x='\" + svgeo.getAttribute('x') + \"' y='\" + svgeo.getAttribute('y')) == -1 && (imgc == 'ask' || lasturl == '//thatsthem.com/name/' + encodeURIComponent(svgeo.innerHTML.toHtmlEntities().split('&')[0].split('(')[0].split('<')[0]))) { if (('' + svgeo.getAttribute('width')).indexOf('null') != -1) { lastiurl=\"<image x='\" + eval(-20 + eval('' + svgeo.getAttribute('x'))) + \"' y='\" + eval(-20 + eval('' + svgeo.getAttribute('y'))) + \"' width='45' height='45' opacity='0.6' href=''></image>\"; } else { lastiurl=\"<image x='\" + svgeo.getAttribute('x') + \"' y='\" + svgeo.getAttribute('y') + \"' opacity='0.6' width='\" + svgeo.getAttribute('width') + \"' height='\" + svgeo.getAttribute('height') + \"' href=''></image>\"; } window.focus(); pres=null; try { if (lastp != 'Regarding ' + svgeo.innerHTML + ' please enter an optional image URL') { pres=prompt('Regarding ' + svgeo.innerHTML + ' please enter an optional image URL', ''); } } catch(exc) { console.log('error'); } if (pres == null) { console.log('err'); pres=''; if (uselast) { setTimeout(psvgit, 2000); } } else { uselast=false; lastp='Regarding ' + svgeo.innerHTML + ' please enter an optional image URL'; } if (pres != '') { uselast=false; lastp='Regarding ' + svgeo.innerHTML + ' please enter an optional image URL'; lastiurl=lastiurl.replace(\" href=''\", \" href='\" + pres + \"'\"); if (gzero) { //alert(\"<image x='0' y='0' width='45' height='45' href=\" + lastiurl.split('href=')[1]); //gzero.innerHTML+=\"<image x='0' y='0' width='45' height='45' href=\" + lastiurl.split('href=')[1]; //.replace(/\-/g,''); //if (document.getElementById('addimg').value == '') { // document.getElementById('addimg').value=' gzero.innerHTML+=\"\"; '; //} document.getElementById('addimg').value+=lastiurl; //alert(document.getElementById('addimg').value); gzero.innerHTML+=lastiurl; } } } if (lasturl != '//thatsthem.com/name/' + encodeURIComponent(svgeo.innerHTML.toHtmlEntities().split('&')[0].split('(')[0].split('<')[0])) { lasturl='//thatsthem.com/name/' + encodeURIComponent(svgeo.innerHTML.toHtmlEntities().split('&')[0].split('(')[0].split('<')[0]) if (('' + svgeo.innerHTML.toHtmlEntities().split('&')[0].split('(')[0].split('<')[0]).replace('%20',' ').replace('+',' ').indexOf(' ') == -1) { setTimeout(function(){ window.open(lasturl, '_blank', 'top=100,left=' + eval(-600 + screen.width) + ',width=600,height=600'); }, 3000); } else { lasturl+=' '; } //svgeo.innerHTML+='</text><text>+'; } } if (1 == 2) { svgeo.innerHTML+='+'; alert('' + svgeo.outerHTML); } }
“; ?>

… in a changed PHP family_tree.php Family Tree creation. This usage, including some data URI image links, is apparent clicking Simpsons Family Tree link.

Previous relevant Python GraphViz via PHP on AlmaLinux Family Tree Tutorial is shown below.

Python GraphViz via PHP on AlmaLinux Family Tree Tutorial

Thinking on the hierarchical skills of GraphViz, it is not surprising that we turn to Family Tree functionality, as the follow up work onto yesterday’s Python GraphViz via PHP on AlmaLinux Organization Hierarchy Emoji Tutorial.

If you examine this how we got there link, you will see by how little has changed, how there is so much in common as we build on previous GraphViz work, rather than worrying about the differences … they soon become apparent as you test the https://forum.graphviz.org/t/emojis-not-working/1935/2 inspired family_tree.py Python code inspiration, thanks.

That last link’s Python code made us ditch the inhouse | and ; and . delimitation ideas in favour of the Python structure syntax, it being as self explanatory (or more, we daresay) as the inhouse delimiter ideas, and easier to implement …

<?php
// family_tree.php // RJM Programming // September, 2024 // Trying out Python GraphViz package ... thanks to https://forum.graphviz.org/t/emojis-not-working/1935/2 $abl=['my_family_tree',"\"Malik✅\", \"Cecil\", \"Sultan\"","\"Mehwish\", \"Miriam\", \"Sultana\"","\"Malik✅\": [\"Sultan\", \"Usman\"], \"Cecil\": [\"Margaret\", \"Christina\"], \"Sultan\": [\"Lilly\", \"Adam\"]"]; $newabl=['my-family-tree',"\"Malik✅\", \"Cecil\", \"Sultan\"","\"Mehwish\", \"Miriam\", \"Sultana\"","\"Malik✅\": [\"Sultan\", \"Usman\"], \"Cecil\": [\"Margaret\", \"Christina\"], \"Sultan\": [\"Lilly\", \"Adam\"]"];
// lots more PHP code follows
?>

It also served to remind us that users might want to embed emojis into their Family Tree names, so to leave SVG as our default output format would be advantageous, again. All the Stop Press ideas yesterday were relevant too, for the PHP family_tree.php Family Tree creation …

Calling cab (6754 – 6756 + 5).

… helper (of Python).

Sharing and collaboration concepts mean that we can share links such as The Simpsons Family Tree we gleaned from thanks to this great link to look like as shown in today’s animated GIF presentation.

Previous relevant Python GraphViz via PHP on AlmaLinux Organization Hierarchy Emoji Tutorial is shown below.

Python GraphViz via PHP on AlmaLinux Organization Hierarchy Emoji Tutorial

As far as the title of today’s tutorial goes, onto yesterday’s Python GraphViz via PHP on AlmaLinux Organization Hierarchy Tutorial, we figure “the new word” in the title could have come from …

Emoji … as we decided upon (as much as anything, because non-ascii characters for other non-English language requirements, might now be possible within the content of the GraphViz entity, as a result) … or …
Format … or …
Sharing … or …
Encoding … or …
Delimitation

We wanted to look back at yesterday to it’s “code architecture”, if you will, as a “lead in” to where we are coming at here. Yesterday, in the user definable textarea elements …

| … “edge” linkage record set delimiter
; … parent from rest delimiter
, … rest child name(s) delimiter

… this user usage delimiter characters “inhouse rules” architecture contributes to making it all the more crucial in the coding, to nail down how the + character is handled …

<?php echo ”
function contentfix(inid) { document.getElementById('ititle').value=document.getElementById('ititle').value.replace(/\+/g,'-').replace(/\=/g,'-').replace(/\ /g,'-'); document.getElementById('none').value=various(document.getElementById('one').value.replace(/\+/g,String.fromCharCode(9))); document.getElementById('ntwo').value=various(document.getElementById('two').value.replace(/\+/g,String.fromCharCode(9))); document.getElementById('nthree').value=various(document.getElementById('three').value.replace(/\+/g,String.fromCharCode(9))); return inid; }
“; ?>

… which, as you can see with our HTML form onsubmit event fired Javascript function above, amounts to mapping real content + characters to horizontal tab to differentiate this mode of use from the use HTML form encoding uses for it to represent an encoded space character. Are you now getting a bit of an idea with today’s “tidying up” and “nuancing” feel?!

What about if any “edge” names contain one of those delimiters, as above? Well, we try …

<?php echo ”
function various(indi) { var outdi=indi; outdi=outdi.replace(/\|\;/g, encodeURIComponent('|') + ';'); outdi=outdi.replace(/\,\;/g, encodeURIComponent(',') + ';'); outdi=outdi.replace(/\;\;/g, encodeURIComponent(';') + ';'); outdi=outdi.replace(/\|\,/g, encodeURIComponent('|') + ','); outdi=outdi.replace(/\,\,/g, encodeURIComponent(',') + ','); outdi=outdi.replace(/\;\,/g, encodeURIComponent(';') + ','); outdi=outdi.replace(/\|\|/g, encodeURIComponent('|') + '|'); outdi=outdi.replace(/\,\|/g, encodeURIComponent(',') + '|'); outdi=outdi.replace(/\;\|/g, encodeURIComponent(';') + '|'); return outdi; }
“; ?>

… in that regard, and “double decode” (with a bit of nuance in between) on the other side, to try to account for this. We’ll see!

But the day started thinking about Emojis. What would happen in our PDF default output with Emoji content being introduced by the user within input textarea elements, as they go to Draw their Hierarchical Organization chart? Well, not so good. But, thanks to Graphviz not supporting UTF-8 encoding webpage, we got put onto the idea that an alternative, and now the default, format of output could be SVG … and trying it worked … thanks!

And then there’s Sharing (and collaboration) thoughts, again?! Email and SMS hashtagged URLs, again?! Well, here, we modelled ideas from the sharing ideas of the PDF to Images and Microsoft Office on AlmaLinux Tutorial thread of blog postings, ending up with …

<?php echo ”
function emailit(inais) { event.stopPropagation(); var em=null; em=prompt('Please enter email address to send output ' + document.getElementById('fmt').value + ' URL link to.', ''); if (em == null) { em=''; } if (em.indexOf('@') != -1) { document.getElementById('ititle').value=document.getElementById('ititle').value.replace(/\+/g,'-').replace(/\=/g,'-').replace(/\ /g,'-'); document.getElementById('none').value=various(document.getElementById('one').value.replace(/\+/g,String.fromCharCode(9))); document.getElementById('ntwo').value=various(document.getElementById('two').value.replace(/\+/g,String.fromCharCode(9))); document.getElementById('nthree').value=various(document.getElementById('three').value.replace(/\+/g,String.fromCharCode(9))); em+='?subject=Hierarchy%20Organization&body=' + encodeURIComponent( (document.URL.split('?')[0].split('#')[0] + '?rand=' + Math.floor(Math.random() * 19897865) + '#title=' + encodeURIComponent(document.getElementById('ititle').value) + '#fmt=' + encodeURIComponent(document.getElementById('fmt').value) + '#one=' + encodeURIComponent(document.getElementById('none').value) + '#two=' + encodeURIComponent(document.getElementById('ntwo').value) + '#three=' + encodeURIComponent(document.getElementById('nthree').value)).replace('#fmt=svg#one=#','#fmt=pdf#one=#') ); document.getElementById('dimap').innerHTML=\"<a style=display:none; id=theaemail target=_blank href='mailto:\" + em + \"'>Email</a>\"; document.getElementById('theaemail').click(); } return false; } function smsit(inais) { event.stopPropagation(); var em=null; em=prompt('Please enter SMS number to send output ' + document.getElementById('fmt').value + ' URL link to.', ''); if (em == null) { em=''; } if (em.trim() != '') { if (em.trim() != '') { document.getElementById('ititle').value=document.getElementById('ititle').value.replace(/\+/g,'-').replace(/\=/g,'-').replace(/\ /g,'-'); document.getElementById('none').value=various(document.getElementById('one').value.replace(/\+/g,String.fromCharCode(9))); document.getElementById('ntwo').value=various(document.getElementById('two').value.replace(/\+/g,String.fromCharCode(9))); document.getElementById('nthree').value=various(document.getElementById('three').value.replace(/\+/g,String.fromCharCode(9))); em+='&body=' + encodeURIComponent( (document.URL.split('?')[0].split('#')[0] + '?rand=' + Math.floor(Math.random() * 19897865) + '#title=' + encodeURIComponent(document.getElementById('ititle').value) + '#fmt=' + encodeURIComponent(document.getElementById('fmt').value) + '#one=' + encodeURIComponent(document.getElementById('none').value) + '#two=' + encodeURIComponent(document.getElementById('ntwo').value) + '#three=' + encodeURIComponent(document.getElementById('nthree').value)).replace('#fmt=svg#one=#','#fmt=pdf#one=#') ); document.getElementById('dimap').innerHTML=\"<a style=display:none; id=theasms target=_blank href='sms:\" + em + \"'>SMS</a>\"; if (!document.getElementById('theasms') && document.getElementById('psms')) { document.getElementById('psms').click(); } else { document.getElementById('theasms').click(); } } } return false; }
“; ?>

… within the changed hierarchy_organization.php Hierarchy Organization diagram “drawer”.

Stop Press

And then it occurred to us that there is also the GraphViz graph mode ( default Digraph versus Graph ), and it’s “edge” element background colour and shape and font size, as well as a resizing mechanism, that could be up for grabs, via user input in the tweaked hierarchy_organization.php Hierarchy Organization diagram “drawer”.

Previous relevant Python GraphViz via PHP on AlmaLinux Organization Hierarchy Tutorial is shown below.

Python GraphViz via PHP on AlmaLinux Organization Hierarchy Tutorial

Calling cab (6754 – 6756 + 4).

Huh?!

Calling the second cab off the rank.

Yes, now that we understand a bit more about file permission issues, after yesterday’s Python GraphViz via PHP on AlmaLinux Permissions Tutorial, having PHP hosting Python with GraphViz calls, let’s turn our attention to the issue of “lots of data”, today, with our …

Organization Hierarchy_ist

… what do you say?! It’s a bit embarrassingly easy a remedy because we are writing in PHP, to just …

make any $_GET[] (web browser address bar arguments) references become $_POST[] equivalents … and any …

HTML form method=GET should become HTML form method=POST

Calling log (6754 – 6756 + 4 – 1) … to fall off.

Python code wise, our hierarchy_organization.py inspiration came from https://graphviz.readthedocs.io/en/stable/examples.html thanks.

Then we worked on PHP hierarchy_organization.php to be as close to being a buddy with a Python as, well, Monty?!

Previous relevant Python GraphViz via PHP on AlmaLinux Permissions Tutorial is shown below.

Python GraphViz via PHP on AlmaLinux Permissions Tutorial

Did you guess, regarding the Python Graphviz via PHP work of yesterday’s Python GraphViz via PHP on AlmaLinux Tutorial, we were experiencing File Permission issues?

Well, yesterday, regarding the Python Graphviz via PHP work of yesterday’s Python GraphViz via PHP on AlmaLinux Tutorial, we were experiencing File Permission issues.

We thought we’d move the Python, via PHP processing, totally into the purview of the web server administration owner, by involving a …

Korn Shell *.ksh … supervised by …
crontab … pointing to …
ksh -c 'for i in `find /home/rjmprogr/public_html/ -name "subgraph_example_*.ksh"`; do ksh -c `echo $i`; done'
… very regularly

… arrangement, but even that failed, in a first incarnation using /tmp/ placement of the Korn Shell file. “Permission denied”, again. Running a Korn Shell from /tmp/ on AlmaLinux must be a no-no, so moved the place to be AlmaLinux web server’s Document Root place, and then things started happening, in the changed subgraph_example.php Python GraphViz using web application.

Previous relevant Python GraphViz via PHP on AlmaLinux Tutorial is shown below.

Python GraphViz via PHP on AlmaLinux Tutorial

Do you remember reading, with PHP Image GraphViz via Pear on AlmaLinux Primer Tutorial below, our outlining three known GraphViz guises …

the recent, alas now deprecated, Google Charts Image Charts GraphViz option means of drawing SVG graphics within an HTML image … we’ve known about before about yesterday …

today’s interest, that being PHP Image GraphViz via Pear on AlmaLinux install, via the AlmaLinux cPanel “Module Installers” Pear installer page, means by which we can use GraphViz calls in PHP code … and, for the future …

GraphViz installs for Python via pip

…? Well, today, we start down the road of …

installing Python GraphViz package via …
pip install graphviz
… then …
getting great help from https://graphviz.readthedocs.io/en/stable/, thanks, as the Python code basis we call subgraph_example.py … and …
used and remoulded by our overseeing PHP subgraph_example.php Python GraphViz using web application

… we need to work on more after this first draft start to another road of our GraphViz journey last talked about at PHP Image GraphViz via Pear on AlmaLinux Focus Tutorial.

Previous relevant PHP Image GraphViz via Pear on AlmaLinux Focus Tutorial is shown below.

PHP Image GraphViz via Pear on AlmaLinux Focus Tutorial

It reared it’s ugly head with the Animated GIF Creator here at RJM Programming (helped out by the great Jeroen van Wissen open source work, thanks). And with yesterday’s PHP Image GraphViz via Pear on AlmaLinux Recallable Tutorial it reared up again.

On non-mobile focus goes to the address bar on many web browsers unless there is a (nominally) visible input type=text or textarea next in line.

It’s hard to keep in mind except as it “rears up” in an annoying way, but if we’d thought back, yes, we allow in the linked list feel of revealing textboxes (or textareas) only as they are needed scenarios we allow for two blank ones to be (nominally) visible at any given time … not one … but two, presumably because there is a tiny Javascript DOM “refresh period” not short enough to stop the web browser “desperation measure” (of placing focus in the address bar) happening?!

Why the non-mobile mention? Well, on mobile, a user programming [HTMLelement].focus(); call has no affect, as the touch operating systems need control of focus arrangements, presumably?!

How can we forget? My liege, please accept my humble apologies?!

Why the (nominally) mentions? Well, we have, successfully, in the past, just arranged a (statically HTML placed) textbox (ie. input type=text) that sits outside the viewing screen but not (nominally) invisible (eg. style=’position:absolute;top:-200px;left:-200px;’) can help you avoid the focus going up to the web browser address bar.

So that’s that, and other progress today is to allow the emailing or SMS of a recalled URL Step arrangement via more options on that “Recall Dropdown” we started allowing for yesterday.

Please see this happening in our changed PHP coded My Recipe Steps web application you can also try below.

Previous relevant PHP Image GraphViz via Pear on AlmaLinux Recallable Tutorial is shown below.

PHP Image GraphViz via Pear on AlmaLinux Recallable Tutorial

After yesterday’s PHP Image GraphViz via Pear on AlmaLinux Sharing Tutorial some readers may be curious to understand the distinction between …

email and SMS sharing … and …
inhouse intersessional sharing via window.localStorage (ie. like HTTP Cookies)

… over yesterday’s and today’s blog posting timings. Simply put, for us, we …

take a deep breath before starting intersessional window.localStorage work, as it is not to be sneezed at, as any sort of doddle (at least for us) … as well as …
since last intersessional window.localStorage work we’ve started using email and SMS sharing hashtagging arrangements that fit in, like a glove, with this intersessional window.localStorage work … so that …
even though, we write the code here in PHP, all this functionality is client based … which we like because …
get the idea correct, with careful forward planning and implementation, we’ll be able to apply similar such thinking into the future, whether that be for clientside only web applications and/or ones that call on serverside code (like PHP) … and …
if we can keep things just clientside more readers can be involved, we figure

If you’re wondering about the worry of any of this, it is to do with large title and/or URL link and/or ingredient type data whose data length could be huge, where most of our concern lies, and …

hashtagging (where data limits are so much longer) can help it remain as a clientside only solution environment (rather than relying on some form method=POST to a serverside (eg. PHP) receiver solution) …
window.localStorage is a step up from the HTTP Cookie style of intersessional (personal) storage as far as amounts that can be stored is concerned

What are we aiming for here, then, with our improvements?

extend the existant email and SMS functionality …
<?php echo ”
function emailit(insg) { var em='', ccok=''; if (estitle == '') { if (cookb.split(' Or hash delimited appended string can ')[0] != '') { cookb=cookb.replace(cookb.split(' Or hash delimited appended string can ')[0], ''); } } if (('' + insg).replace(/^null/g,'').replace(/^undefined/g,'').trim() != '') { em='' + insg; } else { em=prompt('Please enter Email address to share with. ' + cookb, ''); } if (em != null) { if (em.trim() == '' && estitle != '') { em='#' + estitle; } else if (em == estitle && estitle != '') { em='#' + estitle; } } if (em.indexOf('#') != -1) { cook=em.substring(eval(1 + eval('' + em.indexOf('#')))); em=em.split('#')[0].trim(); if (cook.trim() != '') { deleteAVal('steps_' + cook.replace(/\ /g,'-'),''); setAVal('steps_' + cook.replace(/\ /g,'-'), \"" . $hashurl . $hashurld . "\" + anyhashes); } } if (em == null) { em=''; } if (em.trim() != '') { if (em.trim().indexOf('@') != -1) { em+='?subject=Steps&body=' + encodeURIComponent(\"" . $hashurl . $hashurld . "\" + anyhashes); document.getElementById('dimap').innerHTML=\"<a style=display:none; id=theaemail target=_blank href='mailto:\" + em + \"'>Email</a>\"; document.getElementById('theaemail').click(); } else if (em.trim().replace(/0/g,'').replace(/1/g,'').replace(/2/g,'').replace(/3/g,'').replace(/4/g,'').replace(/5/g,'').replace(/6/g,'').replace(/7/g,'').replace(/8/g,'').replace(/9/g,'') == '') { em+='&body=' + encodeURIComponent(\"" . $hashurl . $hashurld . "\" + anyhashes); document.getElementById('dimap').innerHTML=\"<a style=display:none; id=theasms target=_blank href='sms:\" + em + \"'>SMS</a>\"; document.getElementById('theasms').click(); } } return false; } function smsit(insg) { var em='', cook=''; if (estitle == '') { if (cookb.split(' Or hash delimited appended string can ')[0] != '') { cookb=cookb.replace(cookb.split(' Or hash delimited appended string can ')[0], ''); } } if (('' + insg).replace(/^null/g,'').replace(/^undefined/g,'').trim() != '') { em='' + insg; } else { em=prompt('Please enter SMS number to share with. ' + cookb, ''); } if (em != null) { if (em.trim() == '' && estitle != '') { em='#' + estitle; } else if (em == estitle && estitle != '') { em='#' + estitle; } } if (em.indexOf('#') != -1) { cook=em.substring(eval(1 + eval('' + em.indexOf('#')))); em=em.split('#')[0].trim(); if (cook.trim() != '') { deleteAVal('steps_' + cook.replace(/\ /g,'-'),''); setAVal('steps_' + cook.replace(/\ /g,'-'), \"" . $hashurl . $hashurld . "\" + anyhashes); } } if (em == null) { em=''; } if (em.trim() != '') { if (em.trim().replace(/0/g,'').replace(/1/g,'').replace(/2/g,'').replace(/3/g,'').replace(/4/g,'').replace(/5/g,'').replace(/6/g,'').replace(/7/g,'').replace(/8/g,'').replace(/9/g,'') == '') { em+='&body=' + encodeURIComponent(\"" . $hashurl . $hashurld . "\" + anyhashes); document.getElementById('dimap').innerHTML=\"<a style=display:none; id=theasms target=_blank href='sms:\" + em + \"'>SMS</a>\"; document.getElementById('theasms').click(); } else if (em.trim().indexOf('@') != -1) { em+='?subject=Steps&body=' + encodeURIComponent(\"" . $hashurl . $hashurld . "\" + anyhashes); document.getElementById('dimap').innerHTML=\"<a style=display:none; id=theaemail target=_blank href='mailto:\" + em + \"'>Email</a>\"; document.getElementById('theaemail').click(); } } return false; }
“; ?>
… to cater for additional personalized Title (of steps) and Content of steps (using the hashtagging email and SMS URL methods set up yesterday)
<?php echo ”
var estitle=\"" . $estitle . "\"; var cookb=\"" . $cookblurb . "\"; var lssel=''; var woo=null; function deleteAVal(goodname, aparticularvalue) { if (window.localStorage && goodname.indexOf('steps_') == 0) { if (('' + localStorage.getItem(goodname)).replace(/^undefined/g,'').replace(/^null/g,'') != '') { if (aparticularvalue == '') { localStorage.removeItem(goodname); } else { if (aparticularvalue.replace('HTTP','http').toLowerCase() == ('' + localStorage.getItem(goodname)).toLowerCase()) { localStorage.removeItem(goodname); } } } } } function setAVal(cName, cVal) { if (cName.indexOf('steps_') == 0) { if (window.localStorage) { localStorage.setItem(cName, encodeURIComponent(cVal)); cookieAVal('steps_', true); return ' '; } return ''; } return ''; } function gotothis(inu) { if (inu.trim() != '') { if (inu.indexOf('HTTP') == 0) { //alert('2:' + inu); if (inu.indexOf('#steps_') != -1) { //alert('22:' + inu.split('#')[eval(-1 + inu.split('#').length)]); deleteAVal(inu.split('#')[eval(-1 + inu.split('#').length)], encodeURIComponent(inu.replace('#' + inu.split('#')[eval(-1 + inu.split('#').length)], '').replace('HTTP','http'))); //alert('222:' + inu.split('#')[eval(-1 + inu.split('#').length)]); cookieAVal('steps_', true); //alert('2222:' + inu.split('#')[eval(-1 + inu.split('#').length)]); } } else { woo=window.open(inu, '_blank', 'top=50,left=50,width=800,height=800'); } } } function cookieAVal(cName, selize) { var key=null; if (selize && window.localStorage) { lssel=' '; for (var i=0; i<localStorage.length; i++) { // thanks to https://stackoverflow.com/questions/41271092/how-to-loop-through-localstorage-values key = localStorage.key(i); if (('' + key).indexOf(cName) == 0) { if (lssel.trim() == '') { lssel='<select id=sells onchange=gotothis(this.value);><option value=\"\">Recallable Steps below ...</option></select>'; } lssel=lssel.replace('</select>', '<option value=\"' + decodeURIComponent(localStorage.getItem('' + key)) + '\">' + ('' + key).substring(eval('' + cName.length)).replace(/\_/g,' ').replace(/\-/g,' ') + '</option>' + '<option value=\"' + decodeURIComponent(localStorage.getItem('' + key).replace('http','HTTP')) + '#steps_' + ('' + key).substring(eval('' + cName.length)) + '\">Remove ' + ('' + key).substring(eval('' + cName.length)).replace(/\_/g,' ').replace(/\-/g,' ') + '</option>' + '</select>'); } } if (lssel != '') { document.getElementById('ssel').innerHTML=lssel.trim(); } } if (cName.indexOf('steps_') == 0) { if (window.localStorage) { if (decodeURIComponent(('' + localStorage.getItem(cName)).replace(/^undefined/g,'').replace(/^null/g,'')) != '') { return decodeURIComponent(localStorage.getItem(cName)); } if (decodeURIComponent(('' + sessionStorage.getItem(cName)).replace(/^undefined/g,'').replace(/^null/g,'')) != '') { return decodeURIComponent(sessionStorage.getItem(cName)); } } return ''; } return ''; }
“; ?>
add a new …
<a id=pcookie title='Recall this' class=share onclick="return emailit(estitle);" style='display:none;text-decoration:none;cursor:pointer;'>🍪</a>
… emoji link for intersessional window.localStorage work that calls the email functionality modified Javascript function …
allowing a window.localStorage.setItem([Title (of steps)], encodeURIComponent([Content of steps])) to add a personalized and recallable record be kept on the web browser of use … recallable via …
new dropdown populated with existant such records, as well as a dropdown option allowing the user to remove said records, too … which …
can navigate the user to this recallable Steps idea in a new webpage incarnation …
a dropdown arrangement which is intersessional as well as intrasessional by nature, and personalized to that user’s use of the web browser on that device in question

… in our changed PHP coded My Recipe Steps web application you can also try below.

Previous relevant PHP Image GraphViz via Pear on AlmaLinux Sharing Tutorial is shown below.

PHP Image GraphViz via Pear on AlmaLinux Sharing Tutorial

Adding to yesterday’s PHP Image GraphViz via Pear on AlmaLinux Primer Tutorial …

on many mobile devices the horizontally spreading right cell arrangements has been improved by laying out these textarea elements vertically now …
hashtagged URL mailto: and/or sms: “a” links to email and/or SMS communication conduits, respectively …
<?php echo ”
var anyhashes=''; var aone=1; var tdc=0; function checkforlh() { aone=1; if (('' + location.hash.indexOf('dtitle')) != -1) { if (('' + location.hash.indexOf('dtitle=')) != -1) { document.getElementById('therest').value=decodeURIComponent(('' + location.hash).split('dtitle=')[1].split('#')[0].split(encodeURIComponent('#'))[0]); document.getElementById('therest').name='dtitle'; } else if (('' + location.hash.indexOf('dtitle' + encodeURIComponent('='))) != -1) { document.getElementById('therest').value=decodeURIComponent(('' + location.hash).split('dtitle' + encodeURIComponent('='))[1].split('#')[0].split(encodeURIComponent('#'))[0]); document.getElementById('therest').name='dtitle'; } } var retv=''; while (('' + location.hash.indexOf('step' + aone)) != -1) { if (('' + location.hash.indexOf('step' + aone + '=')) != -1) { if (aone <= 1) { document.getElementById('tdi' + aone).value=decodeURIComponent(('' + location.hash).split('step' + aone + '=')[1].split('#')[0].split(encodeURIComponent('#'))[0]); } else { document.getElementById('tdi' + aone).value=decodeURIComponent(('' + location.hash).split('step' + aone + '=')[1].split('#')[0].split(encodeURIComponent('#'))[0]); obl(document.getElementById('tdi' + aone), true); //document.getElementById('tdi' + aone).blur(); if ( document.getElementById('tdi' + eval(1 + aone))) { document.getElementById('tdi' + eval(1 + aone)).focus(); } } } else if (('' + location.hash.indexOf('step' + aone + encodeURIComponent('='))) != -1) { if (aone <= 1) { document.getElementById('tdi' + aone).value=decodeURIComponent(('' + location.hash).split('step' + aone + encodeURIComponent('='))[1].split('#')[0].split(encodeURIComponent('#'))[0]); } else { document.getElementById('tdi' + aone).value=decodeURIComponent(('' + location.hash).split('step' + aone + encodeURIComponent('='))[1].split('#')[0].split(encodeURIComponent('#'))[0]); obl(document.getElementById('tdi' + aone), true); //document.getElementById('tdi' + aone).blur(); if ( document.getElementById('tdi' + eval(1 + aone))) { document.getElementById('tdi' + eval(1 + aone)).focus(); } } } aone++; } if (aone > 1 || document.getElementById('therest').value != '') { anyhashes=('' + location.hash).replace(/\%23/g,'#'); setTimeout(function(){ if (confirm('Draw now (versus add more yourself)?') == true) { document.getElementById('mysub').click(); } }, 8000); } }
“; ?>
… help out with some new sharing functionalities

… so that “a procedure made up of steps” can now be shared and/or created collaboratively in our changed PHP coded My Recipe Steps web application.

Previous relevant PHP Image GraphViz via Pear on AlmaLinux Primer Tutorial is shown below.

https://en.wikipedia.org/wiki/Graphviz

The term “GraphViz” …

Graphviz (short for Graph Visualization Software) is a package of open-source tools initiated by AT&T Labs Research for drawing graphs (as in nodes and edges, not as in bar charts) specified in DOT language scripts having the file name extension “gv”. It also provides libraries for software applications to use the tools. Graphviz is free software licensed under the Eclipse Public License.

… we’ve learnt recently, means a lot of things, differently (nuanced) for a range of users, three that we’ve so far become aware of being …

the recent, alas now deprecated, Google Charts Image Charts GraphViz option means of drawing SVG graphics within an HTML image … we’ve known about before about yesterday …
today’s interest, that being PHP Image GraphViz via Pear on AlmaLinux install, via the AlmaLinux cPanel “Module Installers” Pear installer page, means by which we can use GraphViz calls in PHP code … and, for the future …
GraphViz installs for Python via pip

… in amongst many others we’ve seen programmers using … totally cute, totally useful!

It seems with our PHP Image GraphViz via Pear on AlmaLinux as what looks like a very much “pared down” version of the last mode of use above, that we add constructed graph node or edge or cluster objects, and form them into SVG based HTML image elements. It’s look got me thinking “Steps”, then “Recipe Steps”, and back, quietly, to “Any Old Steps” as the day got more generic.

At first we got, as far as Recipes go (and here we thank Italian Wedding Soup for today’s inspiration), to …

cooking steps showing as Image GraphViz edge graphic components (having arrows connect ellipses containing text, a bit like Speech Bubbles) … and then trying to face the “real world” a user interested in recipes might want to see happen …
an Image GraphViz node graphic component whose wording could be a user supplied recipe Title along with a “URL” attribute link, optionally user supplied (via our HTML div SVG hosting ondblclick event allowing its contenteditable=true attribute and onblur event means by which these optional additional data items can enter the “mix”, if you’ll pardon the pun), probably pointing back to the original recipe information ~~sauce~~source … and …
this title and/or “URL” and/or ingredient list (for example) can all be expressed as the “on hover” title attribute of the tailored user PHP webpage (yes, here we have PHP writing PHP) … and …
at least on Safari, given a recipe Title defined, we can arrange any browser context menu (ie. right click) over the HTML iframe hosted recipe content “Save Iframe As” option being able to download to a reasonably self explanatory download filename … and/or …
any web browser’s Add Bookmark functionality can be harnessed to help the user out in such a way that our PHP coded My Recipe Steps web application could end up being your one stop shop “Recipe Organizer” online?!

See what we mean below …

Previous relevant Google Chart Image Chart Angled Text Annotation Tutorial is shown below.

Google Chart Image Chart Angled Text Annotation Tutorial

It’s Tuesday, in places around the world, looking back at yesterday’s Google Chart Image Chart Image Map Event Editing Tutorial. Can’t help but think we’ve forgotten something. Ah yes …

You talkin’ to me? You talkin’ to me? Meanwhile, back at the questions! Welcome back, Mr De Niro, sir. We hope your Tuesday is treating you well. (Rhetorical. Let it please be Rhetorical … oh dear God … it must be Rhetorical … it must be Rhetorical) We have news regarding “the dosh” (wink, wink) we were discussing the other day. You see …

Better to be king for a night than schmuck for a lifetime. Well, at least it’s not a question. … the thing is, silly us, it turns out that angled text issue was not a problem with [element].getBoundingClientRect() but how the PHP GD imagettftext text placement emanated from the bottom left of the text always, Mr De Niro sir.

Never rat on your friends and always keep your mouth shut. Really wish we could! Yes, Mr De Niro, sir, but, you see this means the rats are completely out of the picture, just leaving us with our money spinner. Right, Mr De Niro … sir.

There are three ways of doing things around here: the right way, the wrong way and the way that I do it. [Exeunt: Stage right] Well, that’s odd? Mr De Niro wasn’t interested in the quadrant nature to our problem solution …

… that temporary div element text border drawing, being the crucial way to find out what was happening, and showing us, at least on Google Chrome web browser, not to worry so much about [element].getBoundingClientRect() results for transformed HTML elements. And that is a huge relief in itself.

Also taking up a lot of today, we shored up Image Map Event Editing results bubbling through to an email or SMS recipient. The size of this data, and an analysis of …

client pre-emptive iframe … versus …
Ajax methodologies

… when it comes to complex and sizeable data such as “Javascript scripting” is, we should start swinging towards Ajax thinking, even pinching it off a client pre-emptive iframe onload event logic thought/start sometimes …

… in the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Radar Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Image Map Event Editing Tutorial is shown below.

Google Chart Image Chart Image Map Event Editing Tutorial

If we are talking “layers” (of functionality) again, onto the progress that yesterday’s Google Chart Image Chart Image Map Events Tutorial represented, then , it is logical …

that if yesterday we presented some programmer defined image map event logic … then, today, we’d want to …
offer the user the chance to change that default programmer defined image map event logic, to that of their own design

… in the form of

user defined Javascript .. editable in a …
HTML textarea element

… and then the coding latching onto a document.createElement(‘script’) paradigm, to add Javascript clientside logic, on the fly.

There’s a first time we can remember aspect to how we present these possibilities to the user. We present it in …

amongst the inhouse annotation options … as a …
“reveal” pairing of HTML5 details/summary element combination look … the first time we can remember aspect to that being …
only initially displaying within the details element innerHTML is a summary element nesting a single “icon like” image (like the other “inhouse annotation” icon images) … but if clicked …
the details innerHTML has added to it a textarea element …
function fillindetsed(odet) { if (odet.innerHTML.split('</summary>')[1] == '') { document.getElementById('tdleft').style.verticalAlign='top'; var onls=thescript.split('<scr' + 'ipt type="text/javascript">'); var onlstuff=onls[1].split('</sc' + 'ript>')[0]; odet.innerHTML+='<scr' + 'ipt type="text/javascript">' + "<br><textarea onblur=tproc(this); id=tscript rows=100 cols=80 value=''>" + onlstuff + "</textarea><br></script>"; //odet.innerHTML+='<scr' + 'ipt type="text/javascript">' + "<br><textarea onblur=tproc(this); id=tscript rows=100 cols=80 value=''>" + encodeURIComponent(onlstuff) + "</textarea><br></script>"; //document.getElementById('tscript').value=decodeURIComponent(document.getElementById('tscript').innerHTML); } }

… from which document.createElement(‘script’) code onblur event logic emanates …

Previous relevant Google Chart Image Chart Image Map Events Tutorial is shown below.

Google Chart Image Chart Image Map Events Tutorial

We really like HTML image maps, and it occurred to us with yesterday’s Google Chart Image Chart Image Map Tutorial we were hiding its light under some bushel somewhere, because …

yesterday we introduced with only the onclick event coded for in the HTML area subelements to the map parent element … linked to an …
associated img element … via an …
attribute called usemap … and two aspects, at the very least, to stuff under the bushel are …
1. many more events than onclick can be defined as you define the area subelements … and here’s the kicker …
2. you can add area subelement event logic that, on paper, would cause interference with other event logic (ie. the same event type in an event bubbling through scenario) but it won’t if you, as a programmer, turn that use of the usemap attribute on and off like a tap

… which, to our mind, represents the bee’s knees of event management. So useful!

To tip our toes into this woooorrrrrlllllddd we’ll show you some newly added area subelement event logics in a Google Chart Image Chart Radar Chart example below …

<map name="mymap" id="mymap"><area onmousedown="defclick(event);" ondblclick="defclick(event);" oncontextmenu="defclick(event);" ontouchend="defclick(event);" ontouchstart="defclick(event);" onmouseout="defclick(event);" onmousemove="defclick(event);" ontouchdown="defclick(event);" onmouseover="defclick(event);" shape="rect" coords="151,34,157,42" id="axis0_0" name="axis0_0" alt="axis0_0" onclick="youralert(this,'This feature name is axis0_0');" nohref=""><area onmousedown="defclick(event);" ondblclick="defclick(event);" oncontextmenu="defclick(event);" ontouchend="defclick(event);" ontouchstart="defclick(event);" onmouseout="defclick(event);" onmousemove="defclick(event);" ontouchdown="defclick(event);" onmouseover="defclick(event);" shape="rect" coords="281,110,288,118" id="axis0_1" name="axis0_1" alt="axis0_1" onclick="youralert(this,'This feature name is axis0_1');" nohref=""><area onmousedown="defclick(event);" ondblclick="defclick(event);" oncontextmenu="defclick(event);" ontouchend="defclick(event);" ontouchstart="defclick(event);" onmouseout="defclick(event);" onmousemove="defclick(event);" ontouchdown="defclick(event);" onmouseover="defclick(event);" shape="rect" coords="281,260,288,268" id="axis0_2" name="axis0_2" alt="axis0_2" onclick="youralert(this,'This feature name is axis0_2');" nohref=""><area onmousedown="defclick(event);" ondblclick="defclick(event);" oncontextmenu="defclick(event);" ontouchend="defclick(event);" ontouchstart="defclick(event);" onmouseout="defclick(event);" onmousemove="defclick(event);" ontouchdown="defclick(event);" onmouseover="defclick(event);" shape="rect" coords="151,336,157,344" id="axis0_3" name="axis0_3" alt="axis0_3" onclick="youralert(this,'This feature name is axis0_3');" nohref=""><area onmousedown="defclick(event);" ondblclick="defclick(event);" oncontextmenu="defclick(event);" ontouchend="defclick(event);" ontouchstart="defclick(event);" onmouseout="defclick(event);" onmousemove="defclick(event);" ontouchdown="defclick(event);" onmouseover="defclick(event);" shape="rect" coords="20,260,27,268" id="axis0_4" name="axis0_4" alt="axis0_4" onclick="youralert(this,'This feature name is axis0_4');" nohref=""><area onmousedown="defclick(event);" ondblclick="defclick(event);" oncontextmenu="defclick(event);" ontouchend="defclick(event);" ontouchstart="defclick(event);" onmouseout="defclick(event);" onmousemove="defclick(event);" ontouchdown="defclick(event);" onmouseover="defclick(event);" shape="rect" coords="20,110,27,118" id="axis0_5" name="axis0_5" alt="axis0_5" onclick="youralert(this,'This feature name is axis0_5');" nohref=""><area id="adef" onclick=" defclick(event); if (!done) { done=false; if (atstart) { normalcall=false; ask(null); normalcall=true; atstart=false; } else { ask(event); } } "shape="default" nohref=""></map>

… with new relevant event code snippet to help add intelligence to the event logic of our Google Chart Image Chart interfacing web application …

Interesting, huh?!

Feel free to try this out in the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Radar Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Image Map Tutorial is shown below.

Google Chart Image Chart Image Map Tutorial

Do you like to come at explaining things in layers? Sort of like the analogy …

you start a project thinking of it in terms of “2D” … and then to move forward …
you spend a day making it work for “3D” (and keep the “2D” working as well)

… or …

you start a web application project thinking of only working via a URL entered on the web browser address bar … and then to move forward …
you spend a day making it work for serving the same purpose and/or a difference purpose called within an HTML iframe (and keep it working for the address bar way as well)

And so we look at a “picturesque” but “kinda dumb” (as far as “action items” go) image we have coming off the interfacing to Google Charts Image Chart. Where can we go here? Well, it would be kind of you to take it to the beach, but that’s not always a possibility now, is it?! Were you pulling my leg?! Tee hee. No, we were thinking … oh no … we have a bad feeling about this … let’s open it up to the class … anyone, anyone? Yes, Louis, would you and Auguste like to share with the class what is so amusing to you?

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Okay, thank you for your thoughts on this, and yes, you could take the “picture” to “a picture show”. Yes, very droll, indeed. Any other ideas? Okay, Johann, you say the idea just “clicked” with you. This sounds promising. Go on …

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Indeed, a young “picturesque” might like to go tap dancing, that is true. Sheeeeesh! But given the lesson is a Computing one, rather than Drama or Dance or Music or the Arts, maybe we would be looking for a way to use the picture in an enhanced way. Okay Kevin, we’ll try you. What do you think?

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Frankly, we are flabbergasted! It’s as if you invented HTML image maps (as a way to add position based event logic), or something … 9³/₄ points to Gryffindor!

Yes, helping out we image map enthusiasts regarding interfacing to Google Charts Image Charts is Google’s Image Map creation helping Json output tool. From that help, we can …

at the demonstrator’s webpage, create an Image Map … and as the user requires …
at the uniquifier definition phase of our WordPress 404.php’s contribution we accept the demonstrator’s image map HTML, and save it to a public resource …
<?php
if (isset($_POST['canvcont'])) { if (isset($_POST['uniquifier'])) { $uniquifier=str_replace('+',' ',urldecode($_POST['uniquifier'])); } if ($uniquifier == '') { $uniquifier='_' . rand(0,78654356); file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation_" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation__" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); if (isset($_POST['mapstuff'])) { file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".html", '<html><body>' . str_replace('+',' ',urldecode($_POST['mapstuff'])) . '</body></html>'); } exec("/usr/local/cpanel/3rdparty/bin/convert -delay 20 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); echo "<html><body onload=\"if (parent.document.getElementById('uniquifier')) { if (parent.document.getElementById('uniquifier').value == '') { parent.document.getElementById('uniquifier').value='" . $uniquifier . "'; } }\"></body></html>"; } else { file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); if (file_exists($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation__" . $uniquifier . ".png")) { $middelay=''; $enddelay=''; if (filesize($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation__" . $uniquifier . ".png") < filesize($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation_" . $uniquifier . ".png")) { $middelay=' -delay 800 '; $enddelay=' -delay 800 '; } exec("rm -f " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif ; /usr/local/cpanel/3rdparty/bin/convert -delay 600 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation_" . $uniquifier . ".png " . $middelay . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation__" . $uniquifier . ".png " . $enddelay . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); } else { exec("rm -f " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif ; /usr/local/cpanel/3rdparty/bin/convert -delay 200 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation_" . $uniquifier . ".png " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); } } exit; }
?>
helping keep the image mapping going, even if the Image Chart is …
1. shared via email or SMS … and/or …
2. forms the basis of a Broadcast Talk demonstration session

We could use Ajax techniques for the Javascript client ways an emailee’s link’s webpage invocation can use this new resource, but we kind of like “client pre-emptive iframe” onload event thinking, for both sides of the ledger, to get this going, as per …

… further to yesterday’s Google Chart Image Chart Dynamic Icons Tutorial in the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Radar Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Dynamic Icons Tutorial is shown below.

Google Chart Image Chart Dynamic Icons Tutorial

Does statistics have to be staid and boring? Kitch and quiche?! Welcome to the wooorrrlllddd of Google Charts Image Chart Dynamic Icons!

Think of Dynamic Icons as a way to decorate one or more data points displayed in one of …

Line Chart
Bar Chart
Map Chart
Radar Chart

We had that certain “Wow^!“ factor going as we remembered our state’s motto from some years back, and we tried out the Map Chart to see whether we could embellish the map with a Dynamic Icon relevant to New South Wales, as you can see with today’s tutorial picture.

We’ll show you the most recent snapshot of Javascript parameters a little later, but the change for this is an optional one up to the user to work out, with prompts such as the Map Chart one updated …

Enter vertical bar separated country ISO Country and/or Region Code list. Please note that optional Dynamic Icons are available via a suffixing string example applied to the second data point such as &chem=y;s=bubble_icon_text_small;d=ski,bb,NSW%20State%20of%20Wow!,FFFFFF;dp=1;ds=0 eg. AU-NT|AU-NSW|AU-SA|NZ|IN’

And here is its relevance in a new snapshot of parameterizations …

… further to yesterday’s Google Chart Image Chart Broadcast Talk Commentary Tutorial in the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Radar Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Broadcast Talk Commentary Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Commentary Tutorial

We’ll leave yesterday’s Google Chart Image Chart Radar Chart Tutorial angled text predilections for now, given we’ve got until Tuesday until tswhtf so to speak. Let’s today remedy the concern we had when we presented Google Chart Image Chart Broadcast Talk Context Tutorial regarding, the at the time new, “Broadcast Talk”, concept …

… even though it is only visual by nature, presented as an update image still presented and updated periodically. Go figure?!

… and offer a way to help the “Broadcast Talk” demonstrator “speak” during their demonstration, effectively. In so doing, we are going to add to …

the demonstrator’s visual inputs coming from that canvas annotator helper … with, today …
the demonstrator’s commentary, collected via an HTML textarea element (to optionally supplement the visuals) from that canvas annotator helper’s originator window (ie. the Google Charts Image Chart interfacing supervisor) … presented …

… via a new “middle of three slide” …

<?php
$uwidth=trim($uparts[$ioff - 2 + sizeof($uparts)]); $uheight=trim(explode('#',explode('?',$uparts[$ioff - 1 + sizeof($uparts)])[0])[0]); if (isset($_GET['canvcont']) && isset($_GET['uniquifier'])) { $uniquifier=str_replace('+',' ',urldecode($_GET['uniquifier'])); if (file_exists($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation__" . $uniquifier . ".png")) { $im = imagecreatefromstring(file_get_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation__" . $uniquifier . ".png")); $white = imagecolorallocate($im, 255, 255, 255); $black = imagecolorallocate($im, 1, 1, 1); imagefilledrectangle($im, 0, 0, $uwidth, $uheight, $white); imagesavealpha($im, TRUE); try { if (function_exists('imagettftext')) { imagettftext($im, 12, 0, 20, 20, $black, realpath('arial.ttf'), str_replace('+',' ',urldecode($_GET['canvcont']))); } } catch (Exception $e) { } imagepng($im, $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation__" . $uniquifier . ".png"); imagedestroy($im); exit; } exit; }
?>

… animated GIF (PHP 404.php helping) means of display in the viewer windows (off email invitation links they receive via the demonstrator) in the changed …

… latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Radar Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Radar Chart Tutorial is shown below.

Google Chart Image Chart Radar Chart Tutorial

Onto yesterday’s Google Chart Image Chart Box Chart Tutorial, today we have a two part stepping forward via new …

Radar Chart interfacing for Google Charts Image Chart … and …
first tentative steps towards, on non-mobile platforms, allowing for text placement rubber banding

Why the trepidation? Well, so far, when the text is angled we can’t understand what results we are getting back from a call to [element].getBoundingClientRect() just yet.

Why is this needed? Again, with the questions! Well, Mr De Niro, you see, well, somebody might want to go onto that more complex annotating.

And why would they do that? Sheesh. Well, Mr De Niro, sir, you see, sometimes things happen in life, and well, fingers slip on keyboards, and mice get awfullllly nervous around screens these days.

Yeh, well, show us the money, wiseguy. Who’s is that question? And what’s with the questions? Well, you see, Mr De Niro, the money is if we can get PHP text placement for text at an angle, where it rotates from the middle of the text, to get a similar positioning to good ol’ … pardon, Mr De Niro … good and well respected Javascript transform rotations … not with a triple pike, Mr De Niro, but you’re awfulllllly close, Mr De Niro, sir … rather, we throw in a couple of translations … no, not Latin, Mr De Niro … of co-ordinates, Mr De Niro.

And that will bring in how much by next Tuesday? Back to the questions? Why so many questions? We think it’s a pretty big money spinner, Mr De Niro, sir, and we think you should come back next Tuesday, and we can show you the ropes. Sweat, oozing from the brow, as Mr De Niro exits stage left.

And just while we have a few minutes, here’s the updated Javascript parameterization …

… that goes into helping make the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Radar Chart or Map Chart interfacing web application you can also try below, have regular sleepovers on cloud nine.

Did you know?

Did you notice the inclusion of CSS styling …

? It styles an input type=number textbox where a placeholder is not really an option to explain a textbox’s purpose, and we do dislike set aside labels, these days. It’s also a way to explain the textbox for mobile users who do not get a hovering message to help. It’s also got an internationalization feel to it, using the degree sign emoji ° (ie. ° or that \u0080 UTF-16 Encoding style of definition suitable for CSS styling usage) to both associate the units we’d want, as well as that we are asking for an angle. Clockwise or anticlockwise, alas, comes down to user experience!

Previous relevant Google Chart Image Chart Box Chart Tutorial is shown below.

Google Chart Image Chart Box Chart Tutorial

Today we offer new …

Box Chart compound chart arrangements off the Google Charts Image Chart Bar Chart and Line Chart functionalties
Google-O-Meter Chart guage

… interfacings, onto the progress up to yesterday’s Google Chart Image Chart Colour Tutorial.

As such, it’s probably timely to update you with the parameterization up the top of the Javascript code …

… that goes into helping make the changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick/Box Chart or Google-O-Meter Chart or Map Chart interfacing web application you can also try below, one of the happiest little vegemites we know.

Previous relevant Google Chart Image Chart Colour Tutorial is shown below.

Google Chart Image Chart Colour Tutorial

Restricting you creatives to “inhouse annotations” of the “gray variety” might be seen as a bit boooorrrriiiinnnngggg! And so, onto the progress up to yesterday’s Google Chart Image Chart Rubber Banding Tutorial, today we’ve added a …

colour picker … way user can define an “inhouse annotations” colour … and while we were at it …
as far as text “inhouse annotations” go we’ve added a counterclockwise from the horizon, in degrees, way to define an angle the text should be placed at … and …
we’ve stopped closing off the text font size dropdown too early, allowing the user to mix it up with their annotations, and so …

We now recommend, for those users pushing the boundaries of functionality, to gather all their “inhouse annotations” together before any “graphical canvas annotations” are thought about.

Which begs the question …

Where do you get it?

Well, here, via … dare we say it?! … … via …

Mantissa Madness Monday

Both colour and degree counterclockwise angle became “Mantissa Madness Monday” tragics, a bit like moi, really?

How did we express these two measures?

colour can be derived at the 404.php end via mantissae that are 9 or more long where a number of the form rrrgggbbb is numerical and passed across to 404.php in the y co-ordinate mantissa … while … kind of crazily …
angle can be a set of zeros in the x co-ordinate mantissa represented by zero characters to the length of the angle from 1 to 359 in front of a pre-existant font size (in px) usage, from last “Mantissa Madness Monday” (us getting away with this because no font size should start with a zero)

Oh! We have such fun around here?! Below is PHP WordPress blog 404.php code …

<?php
// text placement $black = imagecolorallocatealpha($im, 1, 1, 1, 0); $blackish = imagecolorallocatealpha($im, 127, 127, 127, 64); $yis=$csv[1]; $mantissae=explode('.', ('' . $csv[1])); if (sizeof($mantissae) > 1) { if (strlen($mantissae[1]) >= 9) { $black = imagecolorallocatealpha($im, intval(substr($mantissae[1],0,3)), intval(substr(substr($mantissae[1],3),0,3)), intval(substr(substr($mantissae[1],6),0,3)), 0); $blackish = imagecolorallocatealpha($im, intval(substr($mantissae[1],0,3)), intval(substr(substr($mantissae[1],3),0,3)), intval(substr(substr($mantissae[1],6),0,3)), 64); } $yis=$mantissae[0]; } $za=0; $xis=$csv[0]; $mantissae=explode('.', ('' . $csv[0])); if (sizeof($mantissae) > 1) { if (substr($mantissae[1],0,1) == '0') { if (str_replace('0','',$mantissae[1]) != '') { while (substr($mantissae[1],0,1) == '0') { $za++; $mantiss=substr($mantissae[1],1); $mantissae[1]=$mantiss; } } } $tenpx=$mantissae[1]; $xis=$mantissae[0]; } try { if (function_exists('imagettftext')) { if (explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1] !== '') { //echo explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1]; //exit; imagettftext($im, $tenpx, $za, $xis, $yis, $black, realpath('arial.ttf'), explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1]); } } } catch (Exception $e) { }
?>

… used by our changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Rubber Banding Tutorial is shown below.

Google Chart Image Chart Rubber Banding Tutorial

The Javascript clientside idea of “Rubber Banding” …

Rubber banding is a popular technique of drawing geometric primitives such as line, polylines, rectangle, circle and ellipse on the computer screen.

… really appeals to our “inner programmer” … damn^! … come, thou, out into the open, reveal thyself^! … the sunshine is wonderful down here, and we’ve done away with death duties^! … mostly^! … but it is …

only really a non-mobile prospect …
function checkforaction(rubberbanding,nx,ny) { var bcbit='background-color:rgba(127,127,127,0.5);'; var zeroes=''; var classbit=''; var brbit=''; var ourdist=0; var ioff=(rubberbanding == true ? 1 : 0); var mone=1; curno=eval('' + xneeds.length); if (eval(ioff + curno) >= needtohave) { if (!rubberbanding) { document.getElementById('fauxdtext').innerHTML=''; } if (curmode == 8) { zeroes='00000000'; classbit=' class="crerect" '; } else if (curmode == -5) { //alert(1); bcbit='border:2px solid rgba(127,127,127,0.5);'; if (rubberbanding) { ourdist=eval(2.0 * Math.sqrt((nx - xneeds[0]) * (nx - xneeds[0]) + (ny - yneeds[0]) * (ny - yneeds[0]))); ourdist-=10; bcbit='border:2px solid gray;background-color:transparent;'; } else { ourdist=eval(2.0 * Math.sqrt((xneeds[1] - xneeds[0]) * (xneeds[1] - xneeds[0]) + (yneeds[1] - yneeds[0]) * (yneeds[1] - yneeds[0]))); } //alert(ourdist); //xneeds[1]=Math.floor('' + ourdist); //yneeds[1]=xneeds[1]; brbit='border-radius:' + Math.floor(eval(ourdist / 2)) + 'px;'; zeroes='00000'; classbit=' class="ocirc" '; //alert('open circle'); } else if (curmode == 6) { if (rubberbanding) { ourdist=eval(2.0 * Math.sqrt((nx - xneeds[0]) * (nx - xneeds[0]) + (ny - yneeds[0]) * (ny - yneeds[0]))); ourdist-=10; } else { ourdist=eval(2.0 * Math.sqrt((xneeds[1] - xneeds[0]) * (xneeds[1] - xneeds[0]) + (yneeds[1] - yneeds[0]) * (yneeds[1] - yneeds[0]))); } //xneeds[1]=Math.floor('' + ourdist); //yneeds[1]=xneeds[1]; brbit='border-radius:' + Math.floor(eval(ourdist / 2)) + 'px;'; //bcbit='border:2px solid rgba(127,127,127,0.5);'; zeroes='000000'; classbit=' class="ccirc" '; //alert('closed circle ' + bcbit); } else if (curmode == -4) { if (rubberbanding) { mone=0.90; bcbit='border:2px solid gray;background-color:transparent;'; } else { bcbit='border:2px solid rgba(127,127,127,0.5);'; } zeroes='00'; classbit=' class="orect" '; } else if (curmode == 2) { zeroes='0'; if (rubberbanding) { if (Math.min(xneeds[0],nx) == xneeds[0] && Math.min(yneeds[0],ny) == ny) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else if (Math.min(xneeds[0],nx) == nx && Math.min(yneeds[0],ny) == yneeds[0]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else { classbit=' class="crossedtotr" '; } } else { if (Math.min(xneeds[0],xneeds[1]) == xneeds[0] && Math.min(yneeds[0],yneeds[1]) == yneeds[1]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else if (Math.min(xneeds[0],xneeds[1]) == xneeds[1] && Math.min(yneeds[0],yneeds[1]) == yneeds[0]) { // thanks to https://stackoverflow.com/questions/18012420/draw-diagonal-lines-in-div-background-with-css classbit=' class="crossedtotl" '; } else { classbit=' class="crossedtotr" '; } } bcbit=''; } else if (curmode == 4) { if (rubberbanding) { mone=0.90; } zeroes='0000'; classbit=' class="crect" '; } if (!rubberbanding) { curno=-1; //if (brbit != '') { //document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],nx) + 'px;top:' + Math.min(yneeds[0],ny) + 'px;width:' + Math.abs(xneeds[0] - nx) + 'px;height:' + Math.abs(yneeds[0] - ny) + 'px;z-index:98;' + bcbit + '"></div>'; //} else { //document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],xneeds[1]) + 'px;top:' + Math.min(yneeds[0],yneeds[1]) + 'px;width:' + Math.abs(xneeds[0] - xneeds[1]) + 'px;height:' + Math.abs(yneeds[0] - yneeds[1]) + 'px;z-index:98;' + bcbit + '"></div>'; //} document.getElementById('aemail').href+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; document.getElementById('asms').href+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; aemailurl+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; asmsurl+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; arest+='&text' + textnum + '=' + encodeURIComponent('' + xneeds[0] + '.' + zeroes + xneeds[1] + ',' + yneeds[0] + '.' + yneeds[1] + ',') + ''; } if (brbit != '') { //alert('brbit=' + brbit); //xneeds[0]-=(xneeds[1] - xneeds[0]); //yneeds[0]-=(yneeds[1] - yneeds[0]); //alert('xneeds[0]=' + xneeds[0]); if (rubberbanding) { document.getElementById('fauxdtext').innerHTML='<div' + classbit + ' style="' + brbit + 'z-index:-89;position:absolute;left:' + Math.floor(eval(Math.min(xneeds[0],xneeds[0]) - ourdist / 2)) + 'px;top:' + Math.floor(eval(Math.min(yneeds[0],yneeds[0]) - ourdist / 2)) + 'px;width:' + ourdist + 'px;height:' + ourdist + 'px;z-index:98;' + bcbit + '"></div>'; } else { document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.floor(eval(Math.min(xneeds[0],xneeds[0]) - ourdist / 2)) + 'px;top:' + Math.floor(eval(Math.min(yneeds[0],yneeds[0]) - ourdist / 2)) + 'px;width:' + ourdist + 'px;height:' + ourdist + 'px;z-index:98;' + bcbit + '"></div>'; } } else { if (rubberbanding) { document.getElementById('fauxdtext').innerHTML='<div' + classbit + ' style="' + brbit + 'z-index:-89;position:absolute;left:' + Math.min(xneeds[0],nx) + 'px;top:' + Math.min(yneeds[0],ny) + 'px;width:' + Math.max(Math.floor(eval(-30 + Math.abs(xneeds[0] - nx))),Math.floor(eval(mone * Math.abs(xneeds[0] - nx)))) + 'px;height:' + Math.max(Math.floor(eval(-30 + Math.abs(yneeds[0] - ny))),Math.floor(eval(mone * Math.abs(yneeds[0] - ny)))) + 'px;z-index:98;' + bcbit + '"></div>'; } else { document.getElementById('dtext').innerHTML+='<div' + classbit + ' style="' + brbit + 'position:absolute;left:' + Math.min(xneeds[0],xneeds[1]) + 'px;top:' + Math.min(yneeds[0],yneeds[1]) + 'px;width:' + Math.abs(xneeds[0] - xneeds[1]) + 'px;height:' + Math.abs(yneeds[0] - yneeds[1]) + 'px;z-index:98;' + bcbit + '"></div>'; } } if (!rubberbanding) { textnum++; xneeds=[]; yneeds=[]; //alert('arest=' + arest); document.getElementById('tdright').innerHTML=" <span id=spemail><a target=_blank href='mailto:?subject=My%20" + cencodename + "%20...%20best%20viewed%20in%20landscape%20...&body=" + encodeURIComponent((document.getElementById('myvenn').src + arest).replace((document.getElementById('myvenn').src + arest).split('?')[0].split('#')[0], document.URL.split('?')[0].split('#')[0])) + "' id=aemail title=Email>📧</a></span> <span id=spsms><a target=_blank onmouseover=\"if (smsee.length == 0 && origsmsurl.indexOf('sms:&') != -1) { smsee=prompt('Please enter SMS number to send to.', ''); if (smsee == null) { smsee=''; } else { origsmsurl=origsmsurl.replace('sms:&','sms:' + smsee + '&'); asmsurl=asmsurl.replace('sms:&','sms:' + smsee + '&'); this.href=asmsurl; } }\" ontouchstart=\"if (smsee.length == 0 && origsmsurl.indexOf('sms:&') != -1) { smsee=prompt('Please enter SMS number to send to.', ''); if (smsee == null) { smsee=''; } else { origsmsurl=origsmsurl.replace('sms:&','sms:' + smsee + '&'); asmsurl=asmsurl.replace('sms:&','sms:' + smsee + '&'); this.href=asmsurl; } }\" href='sms:&body=" + encodeURIComponent((document.getElementById('myvenn').src + arest).replace(document.getElementById('myvenn').src.split('?')[0].split('#')[0], document.URL.split('?')[0].split('#')[0])) + "' id=asms title=SMS>📟</a></span><br><br> <input title=\"\" onclick=\"event.stopPropagation();\" id=ilp onblur=\"waitfortwo(0); lasttext=this.value.replace(/\~\~/g, '<br>'); this.title=lasttext; if (!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)) { this.value=''; } this.placeholder='Click where you want ... ' + lasttext.replace(/\<br\>/g, String.fromCharCode(10)); mvp.setAttribute('content','initial-scale=1'); document.getElementById('myvenn').scrollIntoView();\" placeholder='Enter text and later click place for it on " + decodeURIComponent(cencodename) + " to left (line feed is ~~)' type=text style=width:500px; value=''></input>" + fszbit + "<br><br> <img id=line src='/MarkItUp/line.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(2);\"></img> <img id=rectangle src='/MarkItUp/rectangle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(4);\"></img> <img id=orectangle src='/MarkItUp/orectangle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(-4);\"></img> <img id=circle src='/MarkItUp/circlefill.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(6);\"></img> <img id=ocircle src='/MarkItUp/circle.png' onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(-5);\"></img> <button id=orerect onclick=\"event.stopPropagation(); this.style.border='1px dotted red'; waitfortwo(8);\" title=\"Zoom in on rectangle you define via two clicks\" style=display:none;>🔎</button>" + lastbit + atend; //alert(1); if (!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)) { document.getElementById('ilp').focus(); } document.getElementById('ilp').placeholder='Enter text and later click place for it on ' + decodeURIComponent(cencodename) + ' to left (line feed is ~~)'; } } else if (curmode == 2 && !rubberbanding) { document.getElementById('line').style.border='1px dashed yellow'; } else if (curmode == -4 && !rubberbanding) { document.getElementById('orectangle').style.border='1px dashed yellow'; } else if (curmode == 4 && !rubberbanding) { document.getElementById('rectangle').style.border='1px dashed yellow'; } else if (curmode == -5 && !rubberbanding) { document.getElementById('ocircle').style.border='1px dashed yellow'; } else if (curmode == 6 && !rubberbanding) { document.getElementById('circle').style.border='1px dashed yellow'; } else if (curmode == 8 && !rubberbanding) { document.getElementById('orerect').style.border='1px dashed yellow'; } } // Rubber banding document.body.addEventListener('mousemove', function(evt){ evt = evt || window.event; evt.preventDefault(); elemLeft = document.getElementById('myvenn').offsetLeft; elemTop = document.getElementById('myvenn').offsetTop; //document.getElementById('myh3').innerHTML+=' ' + elemLeft + ':' + elemTop; //document.getElementById('myh3').innerHTML+=' ' + document.body.scrollLeft + '.' + document.body.scrollTop; if (evt.touches) { if (evt.touches[0].pageX) { //alert('here'); xx = evt.touches[0].pageX + document.body.scrollLeft - elemLeft; yy = evt.touches[0].pageY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; //alert('x:' + x + ' and y:' + y); } } else { //alert('Here'); xx = evt.touches[0].clientX + document.body.scrollLeft - elemLeft; yy = evt.touches[0].clientY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; //alert('x:' + x + ' and y:' + y); } } } else if (evt.clientX || ev.clientY) { //alert('HERE'); xx = evt.clientX + document.body.scrollLeft - elemLeft; yy = evt.clientY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; } } else { //alert('HEre'); xx = evt.pageX + document.body.scrollLeft - elemLeft; yy = evt.pageY + document.body.scrollTop - elemTop; if (xx >= 0 && xx <= eval(('' + document.getElementById('myvenn').width).replace('px','')) && yy >= 0 && yy <= eval(('' + document.getElementById('myvenn').height).replace('px',''))) { if (curno == 1 && (lastx != xx || lasty != yy)) { checkforaction(true,xx,yy); } //lastx=xx; //lasty=yy; } } });
… at least for us (being as we do not want to clobber any pinch or spread gesture ideas, for the user)
is only a really, “nice to have” functionality idea

Even so, achieving even a 95% percent working “rubber band” is like … is like …

Barracking for Hairtie United …
You little beauty, Untied!

And so, further to yesterday’s Google Chart Image Chart Circle Annotation Tutorial we have this non-mobile “Rubber Banding” inhouse annotation functionality included in our changed latest draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart or Map Chart interfacing web application you can also try below.

But there’s more! Despite how long out of the day it takes to barrack for Hairtie United, there was a mobile matter we resolved. A slide in today’s animated GIF presentation shows the issue. On mobile platforms, with these inhouse annotations, it would immediately show a tiny annotation. There panned out to be two event programming related issues we needed to fix related to this problem …

change looking for a “touchstart” event, and instead look for a “touchdown” event for a document.body scope (else we might have restricted the “scope” to just document.getEleementById(‘myvenn’) as another approach (and you should note our event.stopPropagation() statements in lots of places as another research point for you)) because we are talking “discrete click” user behaviour we are targeting … as well as …
start checking that the co-ordinates calculated fall into the range of the Google Charts Image Chart image dimensions … doh!

Did you know?

Well … we didn’t?! We happened to try the web application above on a tiny iPad and saw that HTML button elements with an innerHTML label containing a line feed ( ie. <br> ) only showed the top line, and, alas, for that button in question, the vital new information used to be on the second line. Hence our fix …

//document.getElementById('bshare').innerHTML='Repainting Top Left Image Periodically ... <br>Click here to Broadcast this session to other interested parties ...'; document.getElementById('bshare').innerHTML='Click here to Broadcast this session to other interested parties ...<br>Repainting Top Left Image Periodically ...';

Previous relevant Google Chart Image Chart Circle Annotation Tutorial is shown below.

Google Chart Image Chart Circle Annotation Tutorial

Today, we add …

open circle
filled circle

… annotation possibilities onto the “Broadcast Talk” work in yesterday’s Google Chart Image Chart Broadcast Talk Context Tutorial.

The CSS border-radius property has come to the rescue of many a programmer, saving us from resorting to SVG to display circle or ellipses or arcs of various sorts …

… to team up with WordPress blog 404.php changes …

<?php
if (strlen($zeroesbit) == 6) { // filled in circle if (sizeof($csv) == 3) { array_push($csv, $csv[2]); } else if (sizeof($csv) >= 4) { $dist=(2.0 * sqrt(($csv[0] - $csv[2]) * ($csv[0] - $csv[2]) + ($csv[1] - $csv[3]) * ($csv[1] - $csv[3]))); $csv[2]=$dist; $csv[3]=$dist; } imagefilledellipse($im, $csv[0], $csv[1], $csv[2], $csv[3], $blackish); } else if (strlen($zeroesbit) == 5) { // circle if (sizeof($csv) == 3) { array_push($csv, $csv[2]); } else if (sizeof($csv) >= 4) { $dist=(2.0 * sqrt(($csv[0] - $csv[2]) * ($csv[0] - $csv[2]) + ($csv[1] - $csv[3]) * ($csv[1] - $csv[3]))); $csv[2]=$dist; $csv[3]=$dist; } imageellipse($im, $csv[0], $csv[1], $csv[2], $csv[3], $black); }
?>

… with our changed ninth draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Broadcast Talk Context Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Context Tutorial

The progress, today, along the same lines as yesterday’s Google Chart Image Chart Broadcast Talk Tutorial‘s introduction of a “Broadcast Talk” functionality, was to …

improve “Broadcast Talk” context, by adding onto yesterday’s …

presented as an update image still presented and updated periodically

… only display option, with, as of today …
a presenter’s first snapshotted image retained for user display (in case they arrive late to the lesson … tutt tutt) … and …
ImageMagick created animated GIF with slides for just this first image and the most recent image, updated periodically, in bottom right cell of user display …
<?php
if (isset($_POST['canvcont']) && isset($_POST['uniquifier']) && strpos(('?' . $_SERVER['QUERY_STRING']), 'cht=') === false) { if (isset($_POST['uniquifier'])) { $uniquifier=str_replace('+',' ',urldecode($_POST['uniquifier'])); } if ($uniquifier == '') { $uniquifier='_' . rand(0,78654356); file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); exec("/usr/local/cpanel/3rdparty/bin/convert -delay 20 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); echo "<html><body onload=\"if (parent.document.getElementById('uniquifier')) { if (parent.document.getElementById('uniquifier').value == '') { parent.document.getElementById('uniquifier').value='" . $uniquifier . "'; } }\"></body></html>"; } else { file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); exec("rm -f " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif ; /usr/local/cpanel/3rdparty/bin/convert -delay 200 -loop 0 " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation_" . $uniquifier . ".png " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png" . " " . $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".gif"); } exit; }
?>
… and …
images saved as changes are detected gathered, as ever smaller thumbnails, in the top right of four table cells of the user display …
var iijk=0, uniquif=''; snapshots=[], elem=null, elemcontext=null, oimg=null, checkforsquare=2; function canvinit() { var kkii=0, wpx=0, hpx=0; var tdr=document.getElementById('tdtr').getBoundingClientRect(); wpx=eval('' + tdr.width); hpx=eval('' + tdr.height); elem=document.getElementById('agcanvas'); elemcontext=elem.getContext('2d'); elem.width=elem.width; elemcontext.drawImage(document.getElementById('talkimg'),0,0); if (iijk == 0 || ('' + document.getElementById('tdtr').style.backgroundImage).indexOf('rand=0') != -1) { //alert('89 ' + elem.toDataURL().length); //snapshots.push(elem.toDataURL()); iijk=eval(-1 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); document.getElementById('tdtr').style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage).replace(('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk], '' + 'url(' + elem.toDataURL() + '),' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk]).replace('rand=0', 'rand=x'); iijk=eval(0 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); setInterval(canvinit, 9000); } else { elem.width=elem.width; elemcontext.drawImage(document.getElementById('talkimg'),0,0); if (document.body.innerHTML.indexOf(elem.toDataURL()) == -1) { //snapshots.push(elem.toDataURL()); iijk=eval(-1 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); document.getElementById('tdtr').style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage).replace(('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk], '' + 'url(' + elem.toDataURL() + '),' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),')[iijk]).replace('rand=x','rand=x' + Math.floor(Math.random() * 9)); iijk=eval(0 + eval('' + ('' + document.getElementById('tdtr').style.backgroundImage).split('),').length)); } } var bpx='background-position:;'; var bbpx='background-position:;'; var bsx='background-size:;'; var brx='background-repeat:;'; var xstart=0; var ystart=0; var xxstart=eval('' + tdr.left); var yystart=eval('' + tdr.top); if (iijk > eval(checkforsquare * checkforsquare)) { checkforsquare++; } for (kkii=1; kkii<=iijk; kkii++) { if (bsx.indexOf(':;') != -1) { bsx=bsx.replace(':;', ':' + Math.round(eval(wpx / checkforsquare)) + 'px ' + Math.round(eval(hpx /checkforsquare)) + 'px;'); brx=brx.replace(':;', ':no-repeat;'); bpx=bpx.replace(':;', ':' + Math.round(xstart) + 'px ' + Math.round(ystart) + 'px;'); bbpx=bbpx.replace(':;', ':' + Math.round(xxstart) + 'px ' + Math.round(yystart) + 'px;'); } else { bsx=bsx.replace(';', ',' + Math.round(eval(wpx / checkforsquare)) + 'px ' + Math.round(eval(hpx /checkforsquare)) + 'px;'); brx=brx.replace(';', ',no-repeat;'); bpx=bpx.replace(';', ',' + Math.round(xstart) + 'px ' + Math.round(ystart) + 'px;'); bbpx=bbpx.replace(';', ',' + Math.round(xxstart) + 'px ' + Math.round(yystart) + 'px;'); } if (eval(kkii % checkforsquare) == 0) { xstart=0; xxstart=eval('' + tdr.left); ystart+=eval(hpx / checkforsquare); yystart+=eval(hpx / checkforsquare); } else { xstart+=eval(wpx / checkforsquare); xxstart+=eval(wpx / checkforsquare); } } //alert('iijk=' + iijk + ' ' + bbpx + ' ' + bpx + ' ' + bsx + ' ' + brx); document.getElementById('tdtr').style.backgroundRepeat=brx.split(':')[1]; document.getElementById('tdtr').style.backgroundSize=bsx.split(':')[1]; document.getElementById('tdtr').style.backgroundPosition=bpx.split(':')[1]; //document.body.style.backgroundImage=('' + document.getElementById('tdtr').style.backgroundImage); //document.body.style.backgroundRepeat=brx.split(':')[1]; //document.body.style.backgroundSize=bsx.split(':')[1]; document.body.style.backgroundPosition=bbpx.split(':')[1]; var kdss=bsx.split(':')[1].replace(/\;/g,'').split(','); var idss=bbpx.split(':')[1].replace(/\;/g,'').split(','); var jdss=(('' + document.getElementById('tdtr').style.backgroundImage) + ',').replace(';,',',').replace(/url\(/g,'').replace(/URL\(/g,'').replace(/\"\;/g,'').replace(/\"/g,'').split('),'); document.getElementById('idiv').innerHTML=''; var istuff='', laststuff=''; for (var iop=0; iop<idss.length; iop++) { //while (istuff == laststuff) { if (('' + jdss[iop]) != 'undefined' && ('' + jdss[iop]).trim() != '') { if (jdss[iop].trim().indexOf('iVBOR') != -1) { istuff+='<img style="position:absolute;width:' + kdss[iop].split(' ')[0] + ';height:' + kdss[iop].split(' ')[1] + ';left:' + idss[iop].split(' ')[0] + ';top:' + idss[iop].split(' ')[1] + ';" src="data:image/png;base64,iVBOR' + jdss[iop].trim().split('iVBOR')[1] + '"></img>'; } else if (jdss[iop].trim() .indexOf('//') != -1) { istuff+='<img style="position:absolute;width:' + kdss[iop].split(' ')[0] + ';height:' + kdss[iop].split(' ')[1] + ';left:' + idss[iop].split(' ')[0] + ';top:' + idss[iop].split(' ')[1] + ';" src="' + jdss[iop].trim() + '"></img>'; } //} laststuff=istuff; } } document.getElementById('idiv').innerHTML=istuff; }

We hope you try new functionality in our changed eighth draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart or Map Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Broadcast Talk Tutorial is shown below.

Google Chart Image Chart Broadcast Talk Tutorial

Onto yesterday’s Google Chart Image Chart Statistical Charts Tutorial progress we want to offer …

once a user has that “More Annotation” annotating happening … offer the chance to …
Broadcast … their work as it happens, dynamically …
to an emailee list audience

… and we’re calling this …

Broadcast Talk

… even though it is only visual by nature, presented as an update image still presented and updated periodically. Go figure?! We’re blaming that supper time two back. We’re not sure?!

Anyway, we hope you try out the new arrangements in our changed seventh draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart or Map Chart interfacing web application you can also try below, and helped out by a WordPress blog good ol’ TwentyTen theme 404.php which now includes …

<?php
if (isset($_POST['canvcont']) && isset($_POST['uniquifier']) && strpos(('?' . $_SERVER['QUERY_STRING']), 'cht=') === false) { if (isset($_POST['uniquifier'])) { $uniquifier=str_replace('+',' ',urldecode($_POST['uniquifier'])); } if ($uniquifier == '') { $uniquifier='_' . rand(0,78654356); file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); echo "<html><body onload=\"if (parent.document.getElementById('uniquifier')) { if (parent.document.getElementById('uniquifier').value == '') { parent.document.getElementById('uniquifier').value='" . $uniquifier . "'; } }\"></body></html>"; } else { file_put_contents($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . "presentation" . $uniquifier . ".png", base64_decode( explode('base64,', str_replace(' ','+',urldecode($_POST['canvcont'])))[1])); } exit; }
?>

… featuring our first use of this 404.php in response to a method=POST form call. Verrrrrryyyy interesting!

Previous relevant Google Chart Image Chart Statistical Charts Tutorial is shown below.

Google Chart Image Chart Statistical Charts Tutorial

Further to yesterday’s Google Chart Image Chart Pie Chart Tutorial, today, we embark on our first ventures into composite charts, along what we like to think of as “statistical lines”, regarding interfacing to Google Charts Image Chart …

Line Chart … with its three display options …
1. Even
2. Sparkline
3. Just XY
Bar Chart … with its three display options …
1. Grouped
2. Stacked
3. Overlapped
Candlestick Chart

… the latter being like a “parasite” display idea off the more conventional Statistical Graph favourites, the Line Chart and Bar Chart, where you have a relationship between a numerical concept (eg. sales) and another type of concept (eg. month of the year), and you want to present the data in a graphical form.

Again, we haven’t stopped our “retweaking”. We might “retweak” in the morning or we might “retweak” over a coffee break or we might “retweak” at supper time, but the end result is, well, you’re reading it now!

And yes, you can, and we did, put line feeds into those ternery statements to help with their readability as we add complexity to the parameterization, as we go along, in our changed sixth draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart or Line Chart or Bar Chart or Candlestick Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart Pie Chart Tutorial is shown below.

Google Chart Image Chart Pie Chart Tutorial

As we intimated in yesterday’s Google Chart Image Chart GraphViz Chart Tutorial …

start with an at least two part “inhouse phase” of additional “extra to text” annotation functionality possibilities …

… we would return! And so, here thou lingers. It’s “part two” day, even bigger than “Ben Hur” in certain outback towns we’re a little bit shy to divulge until we get to know our readers that little bit better.

Yes, we are dovetailing with work we’ve done in the past using the excellent …

canvas … element introduced with HTML5 … whereby …
annotations like …
1. scribble … as the default, and various other …
2. discrete click shapes … and …
3. text … including emojis … and …
4. image
… annotating modus operandi

… can be part of the arrangements. It works that the Annotation Helper is opened …

in a new “known about” popup window … looking out for …
parent based “img” element (in the modus operandi we use, calling it, regarding the parent top left image) … so as to be able to …
populate its canvas element with a clone of that calling “img” graphical content … but add into the mix …
menu driven annotation functionality which can change that canvas look and underlying data … and …
the caller can keep track of this and arrange, or not, for these changes to be reflected back at its top left “img” element … the catch being …
the “within range of GET argument” limits are ruined by this introduction of graphical data, and so in agreeing to this, a user forgoes those simpler sharing and annotating functionalities of yesterday’s (and before) work … though your normal image sharing capabilities via the web browser remain in the caller and the called

As well, today, we are introducing new Google Charts Image Chart Pie Chart interfacing, and because this chart type can have the three …

Normal
3D
Concentric

… guises, there was some work to keep us off this street (okay … so we divulged … again) …

Please acquaint yourself with these new annotating features in our changed fifth draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart or Pie Chart interfacing web application you can also try below.

Previous relevant Google Chart Image Chart GraphViz Chart Tutorial is shown below.

Google Chart Image Chart GraphViz Chart Tutorial

Today we have two strands of forward progress, onto the progress up to yesterday’s Google Chart Image Chart Scatter Chart Tutorial, they being …

establish a new interfacing to GraphViz Chart …

GraphViz is a package of open source tools for visualizing connectivity graphs. You can create GraphViz graphs using the DOT language and your choice of layout engines.

… a chart looking a bit like Organization Charts …

Org charts are diagrams of a hierarchy of nodes, commonly used to portray superior/subordinate relationships in an organization. A family tree is a type of org chart.
start with an at least two part “inhouse phase” of additional “extra to text” annotation functionality possibilities … just starting with …
1. line
2. open rectangle
3. filled rectangle

… additional functionality, that we may well add to, but being as we feel a change we’ll leave that for another time.

The WordPress blog “404.php” code snippet becomes …

<?php
if (strpos(('?' . $_SERVER['QUERY_STRING']), '?cht=') !== false || strpos(('?' . $_SERVER['QUERY_STRING']), '&cht=') !== false) { $theqs=str_replace('??','?',('?' . $_SERVER['QUERY_STRING'])); if (strpos($theqs, '?chs=') === false && strpos($theqs, '&chs=') === false) { $theqs='?chs=' . $newWidth . 'x' . $newHeight . '&' . explode('?', $theqs)[1]; } if (strpos(('?' . $_SERVER['QUERY_STRING']), 'text1=') !== false) { $theone=2; $im = imagecreatefromstring(file_get_contents('http://chart.googleapis.com/chart' . explode('&text1=', $theqs)[0])); if (7 == 7) { $plotstring=str_replace('+',' ',urldecode($_GET['text1'])); $csv=explode(',', $plotstring); $black = imagecolorallocatealpha($im, 1, 1, 1, 0); $blackish = imagecolorallocatealpha($im, 127, 127, 127, 64); if (sizeof($csv) >= 3) { if (trim($csv[2]) == '') { // non text annotations $zeroesbit=''; $izeroes=0; $xmantissae=explode('.', ('' . $csv[0])); if (sizeof($xmantissae) > 1) { $csv[0]=$xmantissae[0]; while (substr($xmantissae[1],0,1) == '0') { $zeroesbit.='0'; $xmantissae[1]=substr($xmantissae[1],1); } $csv[2]=$xmantissae[1]; } $ymantissae=explode('.', ('' . $csv[1])); if (sizeof($ymantissae) > 1) { $csv[1]=$ymantissae[0]; if (sizeof($csv) > 3) { $csv[3]=$ymantissae[1]; } else { array_push($csv, $ymantissae[1]); } } if (strlen($zeroesbit) == 4) { // filled in rectangle imagefilledrectangle($im, $csv[0], $csv[1], $csv[2], $csv[3], $blackish); } else if (strlen($zeroesbit) == 2) { // rectangle imagerectangle($im, $csv[0], $csv[1], $csv[2], $csv[3], $black); } else if (strlen($zeroesbit) == 1) { // line imageline($im, $csv[0], $csv[1], $csv[2], $csv[3], $black); } } else { // text placement $xis=$csv[0]; $mantissae=explode('.', ('' . $csv[0])); if (sizeof($mantissae) > 1) { $tenpx=$mantissae[1]; $xis=$mantissae[0]; } try { if (function_exists('imagettftext')) { if (explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1] !== '') { //echo explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1]; //exit; imagettftext($im, $tenpx, 0, $xis, $csv[1], $black, realpath('arial.ttf'), explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1]); } } } catch (Exception $e) { } } while (isset($_GET['text' . $theone])) { $plotstring=str_replace('+',' ',urldecode($_GET['text' . $theone])); $csv=explode(',', $plotstring); if (sizeof($csv) >= 3) { if (trim($csv[2]) == '') { // non text annotations $zeroesbit=''; $izeroes=0; $xmantissae=explode('.', ('' . $csv[0])); if (sizeof($xmantissae) > 1) { $csv[0]=$xmantissae[0]; while (substr($xmantissae[1],0,1) == '0') { $zeroesbit.='0'; $xmantissae[1]=substr($xmantissae[1],1); } $csv[2]=$xmantissae[1]; } $ymantissae=explode('.', ('' . $csv[1])); if (sizeof($ymantissae) > 1) { $csv[1]=$ymantissae[0]; if (sizeof($csv) > 3) { $csv[3]=$ymantissae[1]; } else { array_push($csv, $ymantissae[1]); } } if (strlen($zeroesbit) == 4) { // filled in rectangle imagefilledrectangle($im, $csv[0], $csv[1], $csv[2], $csv[3], $blackish); } else if (strlen($zeroesbit) == 2) { // rectangle imagerectangle($im, $csv[0], $csv[1], $csv[2], $csv[3], $black); } else if (strlen($zeroesbit) == 1) { // line imageline($im, $csv[0], $csv[1], $csv[2], $csv[3], $black); } } else { // text placement try { $xis=$csv[0]; $mantissae=explode('.', ('' . $csv[0])); if (sizeof($mantissae) > 1) { $tenpx=$mantissae[1]; $xis=$mantissae[0]; } if (function_exists('imagettftext')) { if (explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1] !== '') { imagettftext($im, $tenpx, 0, $xis, $csv[1], $black, realpath('arial.ttf'), explode('' . $csv[0] . ',' . $csv[1] . ',', $plotstring)[1]); } } } catch (Exception $e) { } } $theone++; } } //} } } header('Content-Type: image/png'); imagepng($im); imagedestroy($im); } else { header('Content-Type: image/png'); echo file_get_contents('http://chart.googleapis.com/chart' . $theqs); } exit; }
?>

… utilizing that good ol’ PHP GD image library.

We hope you enjoy the …

Mantissa Madness Monday

… coding feel utilized to retain yesterday’s …

&text_n=x,y,Text

… argument snippet basis, adding “x” and “y” mantissa arrangement smarts with a “nothing” Text in our changed fourth draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart or GraphViz Chart interfacing web application you can also try below.

Did you know?

Would you believe, at least to us, it is far less obvious how to display a straight line (that is perhaps not horizontal nor vertical) within a webpage, than it is to display a rectangle, filled or not?! Talk about irony! Over time, we have developed …

HTML hr elements (with a rotation) … and the less kludgy …
HTML div (defining a box with defined dimensions) for a nested SVG element containing the line definition using percentage dimensions

… in the past, for when we needed to do this. But, today, we’d like to thank this great webpage for its suggestion to involve linear gradients …

<style> .crossedtotl { background: linear-gradient(to top left, rgba(0,0,0,0) 0%, rgba(0,0,0,0) calc(50% - 0.8px), rgba(0,0,0,1) 50%, rgba(0,0,0,0) calc(50% + 0.8px), rgba(0,0,0,0) 100%); } .crossedtotr { background: linear-gradient(to top right, rgba(0,0,0,0) 0%, rgba(0,0,0,0) calc(50% - 0.8px), rgba(0,0,0,1) 50%, rgba(0,0,0,0) calc(50% + 0.8px), rgba(0,0,0,0) 100%); } </style>

… in a, basically, CSS solution. Great stuff, thanks!

Previous relevant Google Chart Image Chart Scatter Chart Tutorial is shown below.

Google Chart Image Chart Scatter Chart Tutorial

Today, we bring the Google Charts Image Chart …

Venn Chart interfacing knowledge via yesterday’s Google Chart Image Chart Venn Chart User Text Tutorial … using it to encase some …
Scatter Chart interfacing logic … and along the way fix …
mobile platform User Text issues

… making distributing “Venn Chart” hardcodings into a dropdown selectable arrangement, because there are more commonalities than differences, really, and we do like to parameterize … even in the shower, with a fairly loud rendition of this, perhaps.

Here is our framework for parameterization, here, and into the future …

<title>Interfacing to Google Charts Image Chart Venn Chart or Scatter Chart - RJM Programming - November, 2023</title> <script type=text/javascript> var cht=location.search.split('cht=')[1] ? decodeURIComponent(location.search.split('cht=')[1].split('&')[0]) : "v"; var ctype=location.search.split('type=')[1] ? decodeURIComponent(location.search.split('type=')[1].split('&')[0]) : cht; var cname=(ctype == 'v' ? 'Venn Chart' : (ctype == 's' ? 'Scatter Chart' : '')); var cencodename=(ctype == 'v' ? 'Venn%20Diagram' : (ctype == 's' ? 'Scatter%20Chart' : '')); var prenchtt=(ctype == 'v' ? '100,80,60,30,30,30,10' : (ctype == 's' ? '12,87,75,41,23,96,68,71,34,9|98,60,27,34,56,79,58,74,18,76|84,23,69,81,47,94,60,93,64,54' : '')); var preachtt=(ctype == 'v' ? 'A|B|C' : (ctype == 's' ? 'Cats|Dogs' : '')); var prechtt=(ctype == 'v' ? '&chd=t:' + prenchtt + '&chdl=' + preachtt : (ctype == 's' ? '&chd=t:' + prenchtt + '&chdl=' + preachtt + '&chxt=x,y' : '')); var defchco=(ctype == 'v' ? 'ff0000,00ff00,0000ff' : (ctype == 's' ? 'FF0000|0000FF&chxt=x,y' : '')); var promptone=(ctype == 'v' ? "Enter delimited values string for Venn Diagram such that ... " + String.fromCharCode(10) + "The first three values specify the sizes of three circles: A, B, & C. For chart with only two circles, specify zero for the third value." + String.fromCharCode(10) + "The fourth value specifies the size of the intersection of A and B." + String.fromCharCode(10) + "The fifth value specifies the size of the intersection of A and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + "The sixth value specifies the size of the intersection of B and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + "The seventh value specifies the size of the common intersection of A, B, and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + String.fromCharCode(10) + "" : (ctype == 's' ? "Enter delimited values string for Scatter Chart" : "")); var oneprompt=(ctype == 'v' ? "Enter delimited values string for your Venn Diagram collaborations, optionally, such that ... " + String.fromCharCode(10) + "The first three values specify the sizes of three circles: A, B, & C. For chart with only two circles, specify zero for the third value." + String.fromCharCode(10) + "The fourth value specifies the size of the intersection of A and B." + String.fromCharCode(10) + "The fifth value specifies the size of the intersection of A and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + "The sixth value specifies the size of the intersection of B and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + "The seventh value specifies the size of the common intersection of A, B, and C. For a chart with only two circles, do not specify a value here." + String.fromCharCode(10) + String.fromCharCode(10) + "" : (ctype == 's' ? "Enter delimited values string for Scatter Chart" : "")); // etcetera etcetera etcetera

… but, as you can imagine, there will probably be small retweaks of this arrangement, which is holding out okay so far for Scatter Charts in our changed third draft image_venn.html Google Chart Image Chart Venn Chart or Scatter Chart interfacing web application you can also try below.

Did you know?

In this online world with so many platforms and devices and software choices, there is no need to ever be embarrassed by what might seem an obvious feature you’ve missed.

Take the way on macOS, but not iOS, using a web browser to get to YouTube, you can flag that a video should loop. Especially good for …

song obsessions …
earworms you need to salve

… and what about if your shower is taking an awfully long time?! Please be careful with moisture and devices, though, in the bathroom!

How does it happen? Right click the play button, and looping is there as the top option. Now back to that shower song obsession.

Previous relevant Google Chart Image Chart Venn Chart User Text Tutorial is shown below.

Google Chart Image Chart Venn Chart User Text Tutorial

We think a way to improve on our interfacing web application start regarding yesterday’s Google Chart Image Chart Venn Chart Interfacing Primer Tutorial would be to offer the user the chance to enter their own text onto the Venn Diagrams …

But we would say that.

… given what we learnt in Primary school … or should we say …

“Gryffindor Slytherin Ravenclaw Hufflepuff Junior Business College”

… and, yes, is that you, Aoife? What did you want to point out? After you swallow those Rice Bubbles, that is?! Class is waiting …

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Yes … miss something … and …

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Use your words … okay … missing … don’t worry, the bus will wait … no … there’s no need to point … oh! …

… do you mean …

missing ewe … no … missing you … oh! … missing u … oh! … “Gryffindor Slytherin Ravenclaw Hufflepuff Juniour Business College” … quite so, Aiofe … 3 points for Hufflepuff!

Anyway we needed a fleshed out “function ask” to cater for potential onclick event logic catering for co-ordinates …

… in our changed second draft image_venn.html Google Chart Image Chart Venn Chart interfacing web application you can also try below.

Did you know?

As far as this WordPress blog’s 404.php role goes in all this, we were keen to maintain Venn Diagrams that were purely image based data, because the web browser sharing mechanisms are so much better this way, else we were tempted to just construct a webpage HTML dataset positioning text in an absolute way with a Venn Chart background image. In order to do these purely image based Venn Diagrams we used PHP’s GD image library as per …

Previous relevant Google Chart Image Chart Venn Chart Interfacing Primer Tutorial is shown below.

Google Chart Image Chart Venn Chart Interfacing Primer Tutorial

So, moving on from Google Charts Image Chart Map Charts, today, let’s turn our attention to Google Charts Image Chart Venn Charts which we were dead set curious about given work we’d done in the past regarding Venn Diagrams, which we referenced when we presented Flowchart and Venn Diagram and Mind Map Token Subject Emoji Tutorial some time back. Gobsmackingly good is the Google approach, again, as you’d expect, but the approach covers different ground, so one feels one should go back to Primary School! You thought we were going to give away the answer to one of those security questions, didn’t you?! Didn’t you!?! Well, the answer is “Gryffindor Slytherin Ravenclaw Hufflepuff Junior Business College” … if you must know.

The sharing capabilities are good with the Google Charts approach too, given we are creating an HTML image, as our WordPress blog good ol’ 404.php has been woken up to address via …

<?php
if (strpos(('?' . $_SERVER['QUERY_STRING']), '?cht=') !== false || strpos(('?' . $_SERVER['QUERY_STRING']), '&cht=') !== false) { $theqs=str_replace('??','?',('?' . $_SERVER['QUERY_STRING'])); if (strpos($theqs, '?chs=') === false && strpos($theqs, '&chs=') === false) { $theqs='?chs=' . $newWidth . 'x' . $newHeight . '&' . explode('?', $theqs)[1]; } header('Content-Type: image/png'); echo file_get_contents('http://chart.googleapis.com/chart' . $theqs); exit; }
?>

Yes, all these Image Chart smarts come, essentially, from a “one line” calling URL! Who’d have believed it! Shiver me timbers!

Well, it’s early days with this Venn Chart interfacing where we allow for …

circle (think up to three) definition … and the rest, in this first draft (hoping you’ve done some reading) …
legend and title and colour selection user definitions dumped into a fairly unfriendly “the rest” Javascript prompt entry we ask of the user should they go ahead with the previous definition … and …
sharing and collaboration email and SMS functionality

… we hope you try via our “proof of concept” first draft image_venn.html Google Chart Image Chart Venn Chart interfacing web application you can also try below …

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