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Trying to resize map using transforms

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This commit is contained in:
Will Bradley 2013-07-28 19:34:21 -04:00
parent 2734a38979
commit 3ae4f4343b
2 changed files with 60 additions and 32 deletions
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4
index.html
View File

@ -6,8 +6,8 @@
<![endif]-->
<style type="text/css">
#map {
height: 600px;
width: 80%;
height: 612px; /* 8.5 inch at 72 dpi */
width: 792px; /* 11 inch at 72 dpi */
}
#results {
width: 18%;

88
print.html
View File

@ -9,6 +9,12 @@
padding: 0;
margin: 0;
}
#printbutton {
position: absolute;
top: 0;
left: 0;
z-index: 999;
}
#map {
height: 2550px; /* 8.5 inch at 300 dpi */
width: 3300px; /* 11 inch at 300 dpi */
@ -19,6 +25,9 @@
size: 11in 8.5in;
margin: 0mm;
}
#printbutton {
display: none;
}
htmlff,boffdy {
height: 8.5in;
width: 11in;
@ -34,6 +43,7 @@
</head>
<body>
<input type="button" value="Print" id="printbutton" onclick="printMap()" />
<div id="map"></div>
<script type="text/javascript">
@ -58,8 +68,6 @@
if(params["q"] && params["b0"] && params["b1"] && params["b2"] && params["b3"]){
updateMap(decodeURIComponent(params["q"]),[[decodeURIComponent(params["b0"]), decodeURIComponent(params["b1"])],
[decodeURIComponent(params["b2"]), decodeURIComponent(params["b3"])]]);
//uploadCanvas();
//print();
}
else {
alert("No boundaries given!");
@ -71,37 +79,57 @@
map.fitBounds(bounds);
};
function uploadCanvas(){
var data = "<svg xmlns='http://www.w3.org/2000/svg' width='3300' height='2550'>" +
"<foreignObject width='100%' height='100%'>" +
"<div xmlns='http://www.w3.org/1999/xhtml' >" +
document.getElementById("map").innerHTML+
"</div>" +
"</foreignObject>" +
"</svg>";
document.getElementById("map").innerHTML = data;
function printMap(){
halveMap();
print();
}
function drawCanvas(){
var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
var data = "<svg xmlns='http://www.w3.org/2000/svg' width='3300' height='2550'>" +
"<foreignObject width='100%' height='100%'>" +
"<div xmlns='http://www.w3.org/1999/xhtml' >" +
document.getElementById("map").innerHTML+
"</div>" +
"</foreignObject>" +
"</svg>";
var DOMURL = self.URL || self.webkitURL || self;
var img = new Image();
var svg = new Blob([data], {type: "image/svg+xml;charset=utf-8"});
var url = DOMURL.createObjectURL(svg);
img.onload = function() {
ctx.drawImage(img, 0, 0);
DOMURL.revokeObjectURL(url);
};
img.src = url;
function halveMap(){
// Halve size of each leaflet tile AND decrease its offsets by half
var leaflets = document.getElementsByClassName("leaflet-tile");
for(var i=0; i < leaflets.length; i++){
element = leaflets[i];
element.style.width = element.style.width.split("px")[0]/2+"px";
element.style.height = element.style.height.split("px")[0]/2+"px";
computedStyle = window.getComputedStyle(element, null); // "null" means this is not a pesudo style.
// You can retrieve the CSS3 matrix string by the following method.
var matrix = computedStyle.getPropertyValue('transform')
|| computedStyle.getPropertyValue('-moz-transform')
|| computedStyle.getPropertyValue('-webkit-transform')
|| computedStyle.getPropertyValue('-ms-transform')
|| computedStyle.getPropertyValue('-o-transform');
// Parse this string to obtain different attributes of the matrix.
// This regexp matches anything looks like this: anything(1, 2, 3, 4, 5, 6);
// Hence it matches both matrix strings:
// 2d: matrix(1,2,3,4,5,6)
// 3d: matrix3d(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16);
var matrixPattern = /^\w*\((((\d+)|(\d*\.\d+)|(\-\d*)),\s*)*((\d+)|(\d*\.\d+)|(\-\d*))\)/i;
var matrixValue = [];
if (matrixPattern.test(matrix)) { // When it satisfy the pattern.
console.log(matrix);
var matrixCopy = matrix.replace(/^\w*\(/, '').replace(')', '');
console.log(matrixCopy);
m = matrixCopy.split(/\s*,\s*/);
console.log(m);
m[4] = m[4]/2;
m[5] = m[5]/2;
console.log(m);
element.style.webkitTransform = "matrix("+m[0]+", "+m[1]+", "+m[2]+", "+m[3]+", "+m[4]+", "+m[5]+")";
console.log(element.style.webkitTransform);
}
}
// Halve size of map container (hopefully no redraw!)
map._container.style.width = window.getComputedStyle(map._container, null).width.split("px")[0]/2+"px";
map._container.style.height = window.getComputedStyle(map._container, null).height.split("px")[0]/2+"px";
}
</script>