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Pregled code-a:

<!DOCTYPE HTML>
<html lang="hr">
<head>
<meta charset="UTF-8">
<title>CANVAS - Transform vs setTransform</title>
<script>
var can, ctx;

function init() {
 can = document.getElementById('kan1');
 if (can.getContext) {
  ctx = can.getContext('2d');
  
  //kvadrat na poziciji 0,0
  drawRect('red');
  
  //uzastopna translacija sa setTransform() - svi kvadrati ce se poklopiti
  ctx.setTransform(1,0,0,1,10,10);
  drawRect('green');
  ctx.setTransform(1,0,0,1,10,10);
  drawRect('blue');
  ctx.setTransform(1,0,0,1,10,10);
  drawRect('black');
  
 }
 else document.getElementById('kan11')
              .innerHTML='Vaš browser ne podržava CANVAS tag!';
}

function drawRect(strokeColor) {
 ctx.strokeStyle = strokeColor;
 ctx.strokeRect(0,0, 100,100);
}

window.onload=init;
</script>
</head>
<body>
 
Sa <b>setTransform()</b> se green, blue i black kvadrati poklapaju jer setTransform resetira grid canvasa.

<br>
<br>
<canvas id="kan1" width="300" height="300" style="border:1px solid #DDDDDD;">
 <span id="kan11">Vaš browser ne podržava CANVAS element!</span>
</canvas>

Pregled stranice:

Pogledaj stranicu ../html/html5canvas/primjeri/49settransform.html.