I answered this same question here today how Robert suggested. http://gis.stackexchange.com/questions/20315/how-to-parse-polygons-from-gml- in-openlayers
all polygons in the same layer get a random color: http://jsfiddle.net/YrpEY/1/ - Carlos -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Robert Sanson Sent: Wednesday, February 01, 2012 3:13 PM To: [email protected]; Peter Subject: [OpenLayers-Users] Re: drawing polygons with different Colors If you are bringing in vector features from a JSON / WKT / GML source, then you can assign an attribute with the fill color, then assign a style to the layer, with fill color using the attribute as a variable: var my_style = new OpenLayers.StyleMap({ "default": new OpenLayers.Style( { pointRadius: 3, strokeColor: "#ff6103", fillColor: "${fillcolor}", fillOpacity: 0.4, strokeWidth: 2, //label: "${name}", fontColor: "blue", fontSize: 10, fontFamily: "Arial", fontWeight: "bold" }) }); function setHTML(response) { var cropnum = 0; var lines, line; var cropid, name, fcolor, crds; var cropgeom; if (response.responseText.toUpperCase().indexOf('ERROR') != -1) { alert(response.responseText); } else { crops = new OpenLayers.Layer.Vector("Crops", {isBaseLayer: false, styleMap: my_style, rendererOptions: {zIndexing: true}, extractAttributes: true } ); var lines = response.responseText.split('\n'); for ( var i=0;i<lines.length;i++) { line = lines[i].split("|"); if ( line.length == 3 ) { cropid = line[0]; name = line[1]; fcolor = line[2]; crds = line[3]; cropgeom = wkt_format.read(crds); cropgeom.attributes.id = cropid; cropgeom.attributes.name = name; cropgeom.attributes.fcolor = fcolor; cropgeom.attributes.pstate = "pre"; crops.addFeatures(cropgeom); cropnum = cropnum + 1; } } map.addLayer(crops); } regards, Robert Sanson >>> Peter <[email protected]> 1/02/2012 9:14 p.m. >>> So nobody have any ideas? Greetings -- View this message in context: http://osgeo-org.1560.n6.nabble.com/drawing-polygons-with-different-Colors-t p3910758p4355559.html Sent from the OpenLayers Users mailing list archive at Nabble.com. _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users This email and any attachments are confidential and intended solely for the addressee(s). If you are not the intended recipient, please notify us immediately and then delete this email from your system. This message has been scanned for Malware and Viruses by Websense Hosted Security. www.websense.com _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users
