[OpenLayers-Users] GML Overlay

[Dash]

Christopher Schmidt-2 wrote:
> 
> On Tue, Sep 15, 2009 at 11:42:47AM -0700, Lugosi, Jim wrote:
>> I am trying to figure out how to use the GML overlay with OpenLayers.  I
>> have searched high and low for examples and nothing seems to help.  I am
>> currently trying to convert a shapefile to a GML file using ESRI's Data
>> Interop. Tool.  I've used both the quick export and the Spatial ETL Tool. 
>> Everything seems to work, but when I try to display the information on my
>> map nothing shows up.  There are no JavaScript errors and the layer shows
>> up in my LayerSwitcher control so I really can't tell what the problem
>> is.  Also, I've dumbed down the process by creating a shapefile of a box
>> so that I don't have a large number of coordinates.  Could someone please
>> help with my dilemma?
> 
> http://docs.openlayers.org/help/minimize.html
> 
>> Thanks...
>> 
>> James Lugosi
>> Clackamas County - GISP
>> www.clackamas.us/gis
>> 503-723-4829
>> 
> 
>> _______________________________________________
>> Users mailing list
>> Users at openlayers.org
>> http://openlayers.org/mailman/listinfo/users
> 
> 
> -- 
> Christopher Schmidt
> MetaCarta
> _______________________________________________
> Users mailing list
> Users at openlayers.org
> http://openlayers.org/mailman/listinfo/users
> 
> 
> 


Dash wrote:
> 
> I understand that you are probably trying to help me without words but a
> little more than just a link would help.  Believe me, I've removed lines
> of code and simplified everything I could.  I guess the next step would be
> to post the code.  Here is the init function I use when launching the
> page:
> 
> var map, layer, popup;
> var markers, feature, marker;
> 
> function init() {
> 	// Default map projection is ESPG:4326 -> WGS 84
> 	// WGS 84 Bounds: -180.0000, -90.0000, 180.0000, 90.0000
> 	map = new OpenLayers.Map('map');
> 	
> 	// Initiate Map Controls
> 	map.addControl(new OpenLayers.Control.LayerSwitcher());
> 	map.addControl(new OpenLayers.Control.MousePosition());
> 	
> 	// Create Google Layers
> 	var gmap = new OpenLayers.Layer.Google("Google Streets",{numZoomLevels:
> 20});
> 	var gphy = new OpenLayers.Layer.Google("Google Physical", {type:
> G_PHYSICAL_MAP});
>     var gsat = new OpenLayers.Layer.Google("Google Satellite",{type:
> G_SATELLITE_MAP, numZoomLevels: 20});
>     var ghyb = new OpenLayers.Layer.Google("Google Hybrid",{type:
> G_HYBRID_MAP, numZoomLevels: 20});
> 	
> 	// GML 
> 	var oc = new OpenLayers.Layer.GML("Box", "./textbox.xml");
> 	
> 	// Add layers as an array
> 	map.addLayers([gmap, gphy, gsat, ghyb, oc]);
> 	
> 	// Zoom to the passed in bounds
> 	//boundsExtent = new OpenLayers.Bounds(-180.0000, -90.0000, 180.0000,
> 90.0000);
> 	boundsExtent = new OpenLayers.Bounds(-123.562589253, 44.729986898,
> -121.568458954, 45.918452947);
> 	map.zoomToExtent(boundsExtent);
> }
> 
> Here is the GML file that was created:
> <?xml version="1.0" encoding="UTF-8"?>
> <gml:FeatureCollection xmlns:gml="http://www.opengis.net/gml"
> xmlns:xlink="http://www.w3.org/1999/xlink"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:fme="http://www.safe.com/gml/fme"
> xsi:schemaLocation="http://www.safe.com/gml/fme textbox.xsd">
> <gml:boundedBy>
> <gml:Envelope srsName="EPSG:4326" srsDimension="2">
> <gml:lowerCorner>45.3117814762066 -122.640406532134</gml:lowerCorner>
> <gml:upperCorner>45.3820822372628 -122.536820512781</gml:upperCorner>
> </gml:Envelope>
> </gml:boundedBy>
> <gml:featureMember>
> <fme:testbox gml:id="iddfa35c96-59ff-4423-b062-668e3993b702">
> <fme:FID>0</fme:FID>
> <fme:Id>0</fme:Id>
> <gml:surfaceProperty>
> <gml:Surface srsName="EPSG:4326" srsDimension="2">
> <gml:patches>
> <gml:PolygonPatch>
> <gml:exterior>
> <gml:LinearRing>
> <gml:posList>45.3117814762066 -122.640406532134 45.3820822372628
> -122.640406532134 45.3819865899688 -122.536820512781 45.3117814762066
> -122.538255222191 45.3117814762066 -122.640406532134</gml:posList>
> </gml:LinearRing>
> </gml:exterior>
> </gml:PolygonPatch>
> </gml:patches>
> </gml:Surface>
> </gml:surfaceProperty>
> </fme:testbox>
> </gml:featureMember>
> </gml:FeatureCollection>
> 
> Is there something I am missing?  Any help would be greatly appreciated.
> 
> 



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