Content - 73f71351ea21b19aabbb5ce970d04b4e8ad61057 - ea8286f/2dcontext/transformations/canvas_transformations_scale_001.htm

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Tip revision: a99112edef5480c5a92159a8bf772af8ef00fc85 authored by Lennart Grahl on 24 May 2018, 22:01:25 UTC
fixup! fixup! Add an ugly workaround for createDataChannelPair to make it work in Safari

Tip revision: a99112e

canvas_transformations_scale_001.htm

<!doctype HTML>

<html>
    <head>
        <title>HTML5 Canvas Test: scale() transformation</title>
        <link rel="match" href="canvas_transformations_scale_001-ref.htm">
        <link rel="author" title="Microsoft" href="http://www.microsoft.com" />
        <link rel="help" href="http://www.w3.org/TR/2dcontext/#dom-context-2d-scale" />
        <meta name="assert" content="The scale(x, y) method must add the scaling transformation described by the arguments to the transformation matrix." />
        <script type="text/javascript">
            function runTest()
            {
                var canvas = document.getElementById("canvas1");
                var ctx = canvas.getContext("2d");

                // Draw a red rectangle.
                ctx.fillStyle = "rgba(255, 0, 0, 1.0)";
                ctx.fillRect(0, 0, 100, 50);

                // Draw a black rectangle with scaling.
                ctx.fillStyle = "rgba(0, 0, 0, 1.0)";
                ctx.scale(2, 2);
                ctx.fillRect(0, 0, 50, 25);
            }
        </script>
    </head>
    <body onload="runTest()">
        <p>Description: The scale(x, y) method must add the scaling transformation described by the arguments to the transformation matrix.</p>
        <canvas id="canvas1" width="300" height="150">Browser does not support HTML5 Canvas.</canvas>
    </body>
</html>

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