Thanks Jukka. Unfortunately, setting "STATUS DEFAULT" forces the mask layer to the bottom of the draw order so it can't do it's job.
Approaching the problem from a different perspective - are you aware of any raster processing directive which would clip a layer on the fly? Thanks again for all your help on this. --john On 10/19/2011 03:37 AM, Rahkonen Jukka wrote: > Hi, > > I spent several hours with blind eyes before having a coffee break and now I > really hope that it is this easy: Change the mask layer to STATUS DEFAULT. > > Logic is: Draw the mask layer always (STATUS DEFAULT) but because of REQUIRES > only if the condition is fulfilled. Mask should not appear with your other > layers. > > -Jukka Rahkonen- > > > John Cartwright wrote: >> Lähetetty: 19. lokakuuta 2011 6:12 >> Vastaanottaja: [email protected] >> Aihe: Re: [mapserver-users] WMS GetMap request - incorrect >> layer ordering >> >> Thank you both for your suggestions, but I can't seem to get >> this to work either w/ shp2img or a WMS request. I've >> configured the layers as: >> >> LAYER >> NAME countries >> TYPE POLYGON >> STATUS on >> ... >> END >> >> LAYER >> NAME mask >> TYPE POLYGON >> STATUS on >> REQUIRES "[countries]" >> ... >> END >> >> Then requesting >> >> http://localhost/cgi-bin/basicworld?request=getmap&service=wms > &width=500&height=250&bbox=-180,-90,180,90&srs=EPSG:4326&version=> > 1.1.1&layers=countries&format=png >> shows the countries layer unmasked. Explicitly adding the >> mask to the request as below displays the countries layer >> masked, but is not a solution for me as I have to enforce the mask. >> >> http://localhost/cgi-bin/basicworld?request=getmap&service=wms > &width=500&height=250&bbox=-180,-90,180,90&srs=EPSG:4326&version=> > 1.1.1&layers=countries,mask&format=png >> >> The debugging log suggests that only the countries layer is >> being requested: >> >> [Tue Oct 18 21:00:20 2011].525713 msDrawMap(): rendering >> using outputformat named png (AGG/PNG). >> [Tue Oct 18 21:00:20 2011].525903 msDrawMap(): WMS/WFS set-up >> and query, 0.000s >> [Tue Oct 18 21:00:20 2011].537968 msDrawMap(): Layer 1 >> (countries), 0.012s >> [Tue Oct 18 21:00:20 2011].537982 msDrawMap(): Drawing Label >> Cache, 0.000s >> [Tue Oct 18 21:00:20 2011].537989 msDrawMap() total time: 0.013s >> [Tue Oct 18 21:00:20 2011].555843 msSaveImage(stdout) total >> time: 0.018s >> [Tue Oct 18 21:00:20 2011].555881 mapserv request processing >> time (msLoadMap not incl.): 0.031s >> [Tue Oct 18 21:00:20 2011].555888 msFreeMap(): freeing map at >> 0x100832600. >> >> Did I misunderstand what you intended? >> >> Thanks again! >> >> --john >> >> >> >> >> On Oct 18, 2011, at 8:06 AM, Daniel Morissette wrote: >> >>> On 11-10-18 04:36 AM, Rahkonen Jukka wrote: >>>> Hi, >>>> It is also possible to create a mask layer with REQUIRES >> keywork. The >>>> snippet below will make the "mask" layer to draw always when the >>>> "countries" layer is drawn. However, it is not >> automatically drawn if >>>> you ask for any other layer. One minory drawback is that >> the mask layer >>>> is also listed in the GetCapabilities as a normal WMS layer. >>>> LAYER >>>> NAME "mask" >>>> .... >>>> REQUIRES "[countries]" >>>> ... >>>> END >>> Great suggestion. And with MapServer 6.x you can hide the >> mask layer from the GetCapabilities using the >> "ows_enable_request" metadata: >>> LAYER >>> NAME "mask" >>> .... >>> REQUIRES "[countries]" >>> METADATA >>> "ows_enable_request" "!GetCapabilities" >>> ... >>> END >>> ... >>> END >>> >>> -- >>> Daniel Morissette >>> http://www.mapgears.com/ >>> Provider of Professional MapServer Support since 2000 >>> >>> _______________________________________________ >>> mapserver-users mailing list >>> [email protected] >>> http://lists.osgeo.org/mailman/listinfo/mapserver-users >> _______________________________________________ >> mapserver-users mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/mapserver-users >> _______________________________________________ > mapserver-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapserver-users _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
