Files
openlayers/examples/rotate-features.html
2007-07-06 04:07:31 +00:00

107 lines
4.2 KiB
HTML

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>OpenLayers Rotate Features Example</title>
<style type="text/css">
#map {
width: 500px;
height: 350px;
border: 1px solid #ccc;
}
p {
width: 500px;
}
</style>
<script src="../lib/OpenLayers.js"></script>
<script type="text/javascript">
<!--
var map, pointFeature, lineFeature, polygonFeature;
function init(){
map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0", {layers: 'basic'} );
map.addLayer(layer);
var style_blue = OpenLayers.Util.extend({}, OpenLayers.Feature.Vector.style['default']);
style_blue.strokeColor = "blue";
style_blue.fillColor = "blue";
var style_green = {
strokeColor: "#339933",
strokeOpacity: 1,
strokeWidth: 3,
pointRadius: 6,
pointerEvents: "visiblePainted"
};
var vectorLayer = new OpenLayers.Layer.Vector("Simple Geometry");
// create a point feature
var point = new OpenLayers.Geometry.Point(-110, 45);
pointFeature = new OpenLayers.Feature.Vector(point, null, style_blue);
// create a line feature from a list of points
var pointList = [];
var newPoint = point;
for(var p=0; p<5; ++p) {
newPoint = new OpenLayers.Geometry.Point(newPoint.x + Math.random(1),
newPoint.y + Math.random(1));
pointList.push(newPoint);
}
lineFeature = new OpenLayers.Feature.Vector(
new OpenLayers.Geometry.LineString(pointList),null,style_green);
// create a polygon feature from a linear ring of points
var pointList = [];
for(var p=0; p<6; ++p) {
var a = p * (2 * Math.PI) / 7;
var r = Math.random(1) + 1;
var newPoint = new OpenLayers.Geometry.Point(point.x + (r * Math.cos(a)),
point.y + (r * Math.sin(a)));
pointList.push(newPoint);
}
pointList.push(pointList[0]);
var linearRing = new OpenLayers.Geometry.LinearRing(pointList);
polygonFeature = new OpenLayers.Feature.Vector(
new OpenLayers.Geometry.Polygon([linearRing]));
map.addLayer(vectorLayer);
map.setCenter(new OpenLayers.LonLat(point.x, point.y), 5);
vectorLayer.addFeatures([pointFeature, lineFeature, polygonFeature]);
// start rotating
var origin = new OpenLayers.Geometry.Point(-111.04, 45.68);
var style = {
strokeColor: "#666666",
strokeOpacity: 1,
strokeWidth: 1,
pointRadius: 2,
pointerEvents: "visiblePainted"
};
var center = new OpenLayers.Feature.Vector(origin, null, style);
vectorLayer.addFeatures([center]);
window.setInterval(rotateFeature, 100,
pointFeature, Math.PI / 10, origin);
window.setInterval(rotateFeature, 100,
lineFeature, Math.PI / 20, origin);
window.setInterval(rotateFeature, 100,
polygonFeature, -1 * Math.PI / 10, origin);
}
function rotateFeature(feature, angle, origin) {
feature.geometry.rotate(angle, origin);
feature.layer.drawFeature(feature);
}
// -->
</script>
</head>
<body onload="init()">
<div id="map"></div>
<p>This example shows a few features rotating. There is not yet a control
built that provides a tool for rotating, but the geometry.rotate method
can be accessed to rotate programmatically.</p>
</body>
</html>