Navigation

Changeset 107

Timestamp:

05/17/06 13:21:57 (3 years ago)

Author:

crschmidt

Message:

Add working code for Markers -- marker layer and marker object. Also add markers.html to demo use of markers functionality.

Files:

r102	r107
4	4
5	5	// markers: store internal marker list
6		markers:~~null~~,
	6	markers: [],
7	7
8	8	initialize: function(name) {
…	…
11	11
12	12	// Implement this. It may not need to do anything usually.
13		moveTo:function(bounds,zoomChanged) {
14
	13	moveTo: function(bounds,zoomChanged) {
	14	if (zoomChanged) {
	15	this.div.innerHTML="";
	16	for(i=0; i < this.markers.length; i++) {
	17	this.drawMarker(this.markers[i]);
	18	}
	19	}
15	20	},
16		addMarker:function(marker) {
	21	addMarker: function(marker) {
17	22	this.markers.append(marker);
	23	if (this.map && this.map.getExtent()) {
	24	this.drawMarker(marker);
	25	}
	26	},
	27	drawMarker: function(marker) {
18	28	var resolution = this.map.getResolution();
19	29	var extent = this.map.getExtent();
20	30	var pixel = new OpenLayers.Pixel(
21		~~resolution * (this~~.lonlat.lon - extent.minlon),
22		~~resolution * (extent.maxlat - this~~.lonlat.lat)
	31	1/resolution * (marker.lonlat.lon - extent.minlon),
	32	1/resolution * (extent.maxlat - marker.lonlat.lat)
23	33	);
24	34	var m = marker.generateMarker(pixel);
25	35	this.div.appendChild(m);
26		},
	36	}
27	37	});

r102	r107
29	29	},
30	30	generateMarker: function(pixel) {
31		var markerObject;
32		// Create a div here, and set the location to the pixel above
	31	// Create a div here, and set the location to the pixel above modified
	32	// by the icon size.
	33	var markerObject = OpenLayers.Util.createImage(
	34	this.icon.url,
	35	this.icon.size,
	36	new OpenLayers.Pixel(
	37	pixel.x-(this.icon.size.w/2),
	38	pixel.y-this.icon.size.h)
	39	);
33	40	return markerObject;
34	41	}