topical media & game development

topical media & game development

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

graphic-canvas-ie-testcases-resizing.htm / htm


  <html>
  <head>
    <title>ExplorerCanvas Text Case</title>
    <!--[if IE]><script type="text/javascript" src="graphic-canvas-ie-excanvas.js"></script><![endif]-->
    <script>
      // Safari is known not to handle resizing well, expect this to
      // compare to Firefox
  
      var cv, ctx, size = 80;
      var img = new Image();
      img.src = "../examples/ff.jpg";
  
      function a() {
        cv = document.getElementById("aa");
        ctx = cv.getContext("2d");
  
        l();
      }
  
      function l() {
        size = (size + 1) % 800;
        cv.width = Number(size + 200);
        cv.height = Number((size + 200) / 2);
  
        // Firefox autoclears the canvas at this point
  
        ctx.save();
        ctx.translate(50, 50);
        ctx.scale(0.1, 0.1);
        ctx.rotate(size/800 * Math.PI*8);
        ctx.drawImage(img, 0, -75);
        ctx.restore();
  
        ctx.save();
        ctx.beginPath();
        ctx.moveTo(0, 0);
        ctx.lineTo(cv.width, cv.height);
        ctx.moveTo(20, 20);
        ctx.lineTo(80, 20);
        ctx.lineTo(80, 80);
        ctx.lineTo(20, 80);
        ctx.stroke();
        ctx.closePath();
        ctx.restore();
  
        ctx.save();
        ctx.beginPath();
        ctx.scale(size / 200, size / 200);
        ctx.arc(100, 50, 20, 0, Math.PI, true);
        ctx.fill();
        ctx.restore();
  
        setTimeout(l, 50);
      }
    </script>
    <style>
      canvas {
        background-color:#eee;
      }
    </style>
  </head>
  <body onload="a();">
  <canvas id="aa" width="200" height="200">Fallback <b>content</b> markup</canvas>
  </body>
  </html>

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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