EN
JavaScript - how to draw path (polygonal chain) on canvas element?
7 points
Simple solution:
xxxxxxxxxx1
context.beginPath();2
context.moveTo(20, 40);3
context.lineTo(70, 150);4
context.lineTo(110, 80);5
context.lineTo(180, 170);6
context.stroke();
Using JavaScript it is possible to draw path in following way.
xxxxxxxxxx1
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<html>3
<head>4
<style>5
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#my-canvas { border: 1px solid gray; }7
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</style>9
</head>10
<body>11
<canvas id="my-canvas" width="200" height="200"></canvas>12
<script>13
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var canvas = document.querySelector('#my-canvas');15
var context = canvas.getContext('2d');16
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function drawLine() {18
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context.beginPath();20
context.moveTo(20, 40);21
context.lineTo(70, 150);22
context.lineTo(110, 80);23
context.lineTo(180, 170);24
context.stroke();25
}26
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drawLine();28
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</script>30
</body>31
</html>