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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<meta name="apple-mobile-web-app-capable" content="yes">
<title>OpenLayers Snap Grid Example</title>
<link rel="stylesheet" href="../theme/default/style.css" type="text/css">
<link rel="stylesheet" href="style.css" type="text/css">
<style type="text/css">
.olControlAttribution {
left: 5px;
bottom: 5px;
}
.olControlEditingToolbar .olControlModifyFeatureItemInactive {
background-position: -1px -1px;
}
.olControlEditingToolbar .olControlModifyFeatureItemActive {
background-position: -1px -24px;
}
</style>
</head>
<body>
<h1 id="title">Snap Grid Example</h1>
<div id="tags">
snap grid
</div>
<div id="shortdesc">Use a PointGrid layer and a Snapping control to snap to a grid of regularly spaced points</div>
<div id="map" class="smallmap"></div>
Grid rotation:
<select name="rotation" id="rotation">
<option value="-45">-45</option>
<option value="-30">-30</option>
<option value="-15">-15</option>
<option value="0">0</option>
<option value="15">15</option>
<option value="30">30</option>
<option value="45">45</option>
</select>
Grid spacing:
<select name="spacing" id="spacing">
<option value="150">150</option>
<option value="300">300</option>
<option value="600">600</option>
<option value="1200">1200</option>
<option value="2400">2400</option>
</select>
Max points:
<select name="max" id="max">
<option value="150">150</option>
<option value="250">250</option>
<option value="350">350</option>
</select>
<div class="docs">
<p>
This example demonstrates feature editing with snapping to a regular
grid. The map is configured with a <code>OpenLayers.Layer.PointGrid</code>
layer and a <code>OpenLayers.Control.Snapping</code> agent. For the
best performance, the point grid layer should not made visible.
Snapping still works with layers that are not visible.
</p><p>
See the <a href="snap-grid.js" target="_blank">
snap-grid.js source</a> to see how this is done.
</p>
</div>
<script src="../lib/OpenLayers.js"></script>
<script src="snap-grid.js"></script>
</body>
</html>
|
