Solved. I needed to set the projection on the WFS layer to match the
projection used for the layer data in Mapserver. I guess it is handled
automatically when using the built in WFS feature class, but not when
you override it.
Andy
Andrew Ayre wrote:
> I see that if I set:
>
> featureClass: OpenLayers.Feature.WFS
>
> then the WFS data is shown at all zoom levels. So it doesn't work when I
> use my own feature class. Is there something extra I need to do here to
> make it work? The initialize function in my feature class isn't called
> even though the GML is fetched.
>
> thanks, Andy
>
> Andrew Ayre wrote:
>> Hi! I have a WFS layer that only shows at the 10 smallest zoom levels.
>> If I switch to the 11th zoom level (zooming in) the GML file is
>> fetched but the markers are not added.
>>
>> I have tried setting the maxResolution, minResolution, etc. parameters
>> for the layer to match the map, but with no luck. Can anyone please
>> give me some hints?
>>
>> Thanks!
>>
>> map = new OpenLayers.Map ("map", {
>> controls:[
>> new OpenLayers.Control.Navigation(),
>> new OpenLayers.Control.PanZoomBar(),
>> new OpenLayers.Control.Attribution(),
>> new OpenLayers.Control.LayerSwitcher()],
>> maxExtent: new
>> OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34),
>> maxResolution: 156543.0399,
>> numZoomLevels: 19,
>> units: 'm',
>> projection: new OpenLayers.Projection("EPSG:900913"),
>> displayProjection: new OpenLayers.Projection("EPSG:4326")
>> });
>>
>> var czwfs = new OpenLayers.Layer.WFS("Test Data",
>> "/mapserverredirect/cgi-bin/mapserv.cgi"
>> {
>> typename: "TESTPOINTS2", maxfeatures: 300, map: '../wms.map'
>> },
>> {
>> featureClass: CacheZone.Feature.Points,
>> maxResolution: map.maxResolution,
>> minResolution: map.minResolution,
>> numZoomLevels: map.numZoomLevels,
>> units: map.units,
>> scales: map.scales,
>> resolutions: map.resolutions,
>> minZoomLevel: map.minZoomLevel,
>> maxZoomLevel: map.maxZoomLevel
>> });
>>
>> Andy
>>
>
--
Andy
PGP Key ID: 0xDC1B5864
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