Re: [mapserver-users] Clip Raster with a Polygon
Hi, I have been thinking sometimes that there could be a huge polygon that is always drawn on top of the raster layer. 'Area of interest' polygons should be converted into holes in the mask polygon. I have never tried it in practice, though. -Jukka Rahkonen- Lähettäjä: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] Puolesta Gabe Codina Lähetetty: 18. helmikuuta 2011 7:05 Vastaanottaja: mapserver-users@lists.osgeo.org Aihe: [mapserver-users] Clip Raster with a Polygon Hi I would like to serve a raster layer that is spatially filtered - ie the raster should show through where it overlaps with 1 or more polygons. Is mapserver capable of doing this ? Gabe Codina ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
RE: [mapserver-users] Clip Raster with a Polygon
I have done this with static mask images. It wouldn't be hard to pass the ID of the feature that you want to be the 'hole' in the URL and then use that url variable in an expression for that layer/class . David. From: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Rahkonen Jukka Sent: Friday, February 18, 2011 6:02 AM To: Gabe Codina; mapserver-users@lists.osgeo.org Subject: Re: [mapserver-users] Clip Raster with a Polygon Hi, I have been thinking sometimes that there could be a huge polygon that is always drawn on top of the raster layer. 'Area of interest' polygons should be converted into holes in the mask polygon. I have never tried it in practice, though. -Jukka Rahkonen- Lähettäjä: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] Puolesta Gabe Codina Lähetetty: 18. helmikuuta 2011 7:05 Vastaanottaja: mapserver-users@lists.osgeo.org Aihe: [mapserver-users] Clip Raster with a Polygon Hi I would like to serve a raster layer that is spatially filtered - ie the raster should show through where it overlaps with 1 or more polygons. Is mapserver capable of doing this ? Gabe Codina ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Clip Raster with a Polygon
I've done some interesting things by setting a background color, and then removing features (NOT these) by coloring them WHITE, which is then converted to transparent, which then works like a mask. bobb Rahkonen Jukka jukka.rahko...@mmmtike.fi wrote: Hi, I have been thinking sometimes that there could be a huge polygon that is always drawn on top of the raster layer. 'Area of interest' polygons should be converted into holes in the mask polygon. I have never tried it in practice, though. -Jukka Rahkonen- Lähettäjä: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] Puolesta Gabe Codina Lähetetty: 18. helmikuuta 2011 7:05 Vastaanottaja: mapserver-users@lists.osgeo.org Aihe: [mapserver-users] Clip Raster with a Polygon Hi I would like to serve a raster layer that is spatially filtered ie the raster should show through where it overlaps with 1 or more polygons. Is mapserver capable of doing this ? Gabe Codina ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
