scrawl-canvas
Version:
Version 8.9.4 - 19 Nov 2022
76 lines (58 loc) • 2.46 kB
HTML
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Demo Canvas 056</title>
<link href="css/normalize.css" rel="stylesheet" />
<link href="css/tests.css" rel="stylesheet" />
<style>
.controls {
grid-template-columns: 1fr 2fr 1fr 2fr;
}
canvas {
margin: 0 auto;
}
</style>
</head>
<body>
<h1><a href="index.html">Scrawl-canvas v8</a> - Canvas test 056</h1>
<h2>Seeded random number generator; point on path</h3>
<div class="controls">
<div class="yellow label">Max random length</div>
<div class="yellow"><input class="controlItem" id="length" type="range" value="25" min="0" max="50" step="1" /></div>
<div class="yellow label">Density</div>
<div class="yellow"><input class="controlItem" id="density" type="range" value="600" min="100" max="1000" step="10" /></div>
<div class="yellow label">Max random rotation</div>
<div class="yellow"><input class="controlItem" id="rotation" type="range" value="360" min="0" max="360" step="1" /></div>
<div class="yellow label">Add path rotation</div>
<div class="yellow">
<select class="controlItem" id="pathroll">
<option value="0">false</option>
<option value="1">true</option>
</select>
</div>
</div>
<canvas
id="mycanvas"
width="600"
height="600"
data-scrawl-canvas
data-base-background-color="azure"
></canvas>
<p id="reportmessage"></p>
<div class="testinfo">
<h4>Test purpose</h4>
<ul>
<li>Create a Polyline entity and a Shape entity</li>
<li>Use positions along the Polyline entity's path to generate a series of short lines, captured in the Shape entity's pathDefinition attribute</li>
<li>The short lines should be calculated using the Seeded random number generator - c heck that the initial display is the same each time the page loads (this would not happen if we were using the Javascript Math.random() function)</li>
</ul>
<p>Note that the Shape entity doesn't overlap the Polyline entity because it is positioned centrally and will often have different dimension values.</p>
<p><b>Touch test:</b> should work as expected</p>
<p><a href="../docs/demo/canvas-056.html">Annotated code</a></p>
</div>
<script src="canvas-056.js" type="module"></script>
</body>
</html>