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Methods for programmatically manipulating sketches while digitizing features. r=bartvde (closes #3343)

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@12103 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
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Tim Schaub
2011-06-17 18:59:16 +00:00
parent abdb336354
commit 2cf3f62d1b
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<!DOCTYPE html>
<html>
<head>
<title>OpenLayers Undo/Redo Drawing Methods</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0;">
<meta name="apple-mobile-web-app-capable" content="yes">
<link rel="stylesheet" href="../theme/default/style.css" type="text/css">
<link rel="stylesheet" href="style.css" type="text/css">
<script src="../lib/OpenLayers.js"></script>
</head>
<body>
<h1 id="title">Undo/Redo Drawing</h1>
<p id="shortdesc">
Demonstrates the use of undo &amp; redo methods while drawing.
</p>
<div id="map" class="smallmap"></div>
<div id="docs">
<p>
Use <code>Ctrl-Z</code> or <code>⌘-Z</code> to undo while drawing.
Use <code>Ctrl-Y</code> or <code>⌘-Y</code> to redo what you have
undone. Use <code>Esc</code> to cancel the current sketch.
<p>
The <code>control.undo</code> method works on the current
sketch, removing the most recently added point.
The <code>control.redo</code> method adds back items that were
removed from an undo. To fully erase a sketch, call the
<code>control.cancel</code> method.
</p><p>
View the <a href="draw-undo-redo.js" target="_blank">draw-undo-redo.js</a>
source to see how this is done.
</p>
</div>
<script src="draw-undo-redo.js"></script>
</body>
</html>