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https://gitlab.com/harald.mueller/aktuelle.kurse.git
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37 lines
732 B
HTML
37 lines
732 B
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Canvas</title>
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</head>
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<body>
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<h1>HTML5 Canvas</h1>
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<canvas id="myCanvas" width="300" height="500"/>
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<script>
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function zeichne()
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{
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let ctx = cv.getContext("2d");
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ctx.fillStyle = "red";
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/* Linie zeichnen vom Punkt 0,0 zu 50,50 */
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ctx.beginPath();
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ctx.moveTo(0, 0);
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ctx.lineTo(50, 50);
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ctx.stroke();
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/* Rechteck zeichnen mit x=50, y=50, breite=200, höhe=300 */
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ctx.fillRect(50, 50, 200, 300);
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}
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let cv = document.getElementById("myCanvas");
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if (cv.getContext){
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zeichne();
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} else {
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alert("Der Browser unterstützt das <canvas>-Element nicht :-(");
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}
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</script>
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</body>
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</html>
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