<!doctype html>
<html>
<head>
<title>Ireland Clickaround - RJM Programming - April, 2015</title>
<link href='//www.rjmprogramming.com.au/PHP/emboss_h1.css' rel='stylesheet' type='text/css'>
<script type='text/javascript'>
var mode = 1;
var amode = 1;
var elem;
var elemLeft;
var elemTop;
var context;
var elements = [];
var img;
var dublin_x = 369.0, dublin_y = 289.0;
var dublinx = 369.0, dubliny = 289.0;
var x, y;
var clickno = 0;
var ourlat, ourlong;
var url = "http://www.rjmprogramming.com.au/PHP/Map/map.php?title=Dublin&label=['Lat',&value='Lon','Name']&data=,[53.3478,-6.2597,~Dublin~]";
window.onload = function() {
elem = document.getElementById('canvaselement');
context = elem.getContext("2d");
img = document.getElementById("ireland");
context.drawImage(img,0,0);
elemLeft = elem.offsetLeft;
elemTop = elem.offsetTop;
// Add event listener for `click` events.
elem.addEventListener('click', function(event) {
x = event.pageX - elemLeft;
y = event.pageY - elemTop;
//alert(x + " " + y);
if (clickno == 0) {
dublinx = x;
dubliny = y;
ourlong = eval(-6.2597 + (x - dublinx) / (185.0 * (dublinx / dublin_x)) * 2.3097);
ourlat = eval(53.3478 + (y - dubliny) / (224.0 * (dubliny / dublin_y)) * (-1.7311));
} else {
ourlong = eval(-6.2597 + (x - dublinx) / (185.0 * (dublinx / dublin_x)) * 2.3097);
ourlat = eval(53.3478 + (y - dubliny) / (224.0 * (dubliny / dublin_y)) * (-1.7311));
}
elements.push({
colour: '#ff0000',
width: 5,
height: 5,
top: y,
left: x
});
clickno = clickno + 1;
// Collision detection between clicked offset and element.
elements.forEach(function(element) {
//alert('clicked Element at ' + ourlong + ' ' + ourlat + ' ' + element.left + ',' + element.top + ' with width=' + element.width + ' and height=' + element.height + ' and colour=' + element.colour);
context.fillStyle = element.colour;
context.fillRect(element.left, element.top, element.width, element.height);
document.getElementById('myiframe').src = "http://www.rjmprogramming.com.au/PHP/Map/map.php?title=Your%20Place&label=['Lat',&value='Lon','Name']&data=,[" + ourlat + "," + ourlong + ",~Your%20Place~]"
});
});
function ask() {
var huh=prompt("If you've zoomed your window, please answer Y and then click on Dublin to scale. Then click away at places where you want to go.", "");
if (huh == null) {
clickno = 1;
} else if (huh == "y" || huh == "Y") {
clickno = 0;
} else {
clickno = 1;
}
}
setTimeout(ask, 1000);
};
</script>
</head>
<body>
<table><tr><td>
<canvas id="canvaselement" width=600 height=600 style="position: absolute; top:0; left:0; " /></td><td>
<h1 style="position: absolute; top:0; left:610px; " align='center'>Ireland Clickaround <select id='others' onchange=" location.href=this.value + '.html';"><option value='ireland'> ... or ...</option><option value='brazil'>Brazil</option><option value='ireland'>Ireland</option><option value='united_states'>United States</option><option value='world'>World</option></select></h1><br>
<iframe style="position: absolute; top:80px; left:610px; " id="myiframe" width=500 height=460 src="http://www.rjmprogramming.com.au/PHP/Map/map.php?title=Dublin&label=['Lat',&value='Lon','Name']&data=,[53.3478,-6.2597,~Dublin~]"></iframe>
</td></tr></table><img id="ireland" src="ireland.jpg" style="display:none;" />
</body>
</html>