Re: [mapserver-users] Point lables and tiles
Hi! OK, thanks! I guess that MapScript is the way to go then. Steve Lime wrote: Not within MapServer proper. The various tiling services use this metatile approach so it does work. You'd need an intermediary script to do the clipping for you. Steve On 5/28/2009 at 8:36 AM, in message 1243517779820-2987684.p...@n2.nabble.com, paalkr pal.kristen...@statkart.no wrote: Hi! OK, are there any methods that could be used to let MapServer produce a bigger image and then chop off excess area before sending the image to the client? I think that this would be the easiest and most flexible solution. Regards, Pål Kristensen Thomas Bonfort-2 wrote: it doesn't put any labels in the 10 outermost pixels surrounding the generated image (as they are chopped off by tilecache's metabuffer) thomas -- www.camptocamp.com +33 4 79 26 57 97 On Mon, May 25, 2009 at 16:45, paalkr pal.kristen...@statkart.no wrote: Hi! Thanks for the hint! The problem is that I'm using GeoWebCache and not tilecache :) Is the METADATA labelcache_map_edge_buffer -10 END a MapServer keyword? What does it do exactly? Any other possible solutions? Regards, Pål Kristensen Thomas Bonfort-2 wrote: http://lists.osgeo.org/pipermail/mapserver-users/2009-March/060214.html regards, thomas -- www.camptocamp.com +33 4 79 26 57 97 On Mon, May 25, 2009 at 15:00, paalkr pal.kristen...@statkart.no wrote: Hi! When creating tiles for my tilecache I have some issues regarding point labels. Using the PROCESSING label_no_clip=true works for line and polygon labels, but points has not area/size and will therefor newer be present in two neighbouring tiles. The result are clipped labels because only one tile will ever know about the presence of a point. If then the label should have been rendered into the next tile, it will be clipped. Metatiles (requesting more than one tile at a time and splitting it up on the tile server) helps, but only a little, as the same problem will occur between metatiles. A solution would be that MapServer rendered each tile (map) some percentage larger than requested, and then chops of the excess area before delivering the final map. A setting at the MAP level of the mapfile controlling this grow mechanism would be great, defining the percentage the map shall be extended before rendering. Second, is there any other way to solve the issue? Especially if there are already features in MapServer that can be used. Regards, Pål Kristensen - Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/Point-lables-and-tiles-tp2969528p2969528.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users - Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/Point-labels-and-tiles-tp2969528p2969950.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users - Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/Point-labels-and-tiles-tp2969528p2987684.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users - Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/Point-labels-and-tiles-tp2969528p2992303.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Point lables and tiles
Hi! OK, are there any methods that could be used to let MapServer produce a bigger image and then chop off excess area before sending the image to the client? I think that this would be the easiest and most flexible solution. Regards, Pål Kristensen Thomas Bonfort-2 wrote: it doesn't put any labels in the 10 outermost pixels surrounding the generated image (as they are chopped off by tilecache's metabuffer) thomas -- www.camptocamp.com +33 4 79 26 57 97 On Mon, May 25, 2009 at 16:45, paalkr pal.kristen...@statkart.no wrote: Hi! Thanks for the hint! The problem is that I'm using GeoWebCache and not tilecache :) Is the METADATA labelcache_map_edge_buffer -10 END a MapServer keyword? What does it do exactly? Any other possible solutions? Regards, Pål Kristensen Thomas Bonfort-2 wrote: http://lists.osgeo.org/pipermail/mapserver-users/2009-March/060214.html regards, thomas -- www.camptocamp.com +33 4 79 26 57 97 On Mon, May 25, 2009 at 15:00, paalkr pal.kristen...@statkart.no wrote: Hi! When creating tiles for my tilecache I have some issues regarding point labels. Using the PROCESSING label_no_clip=true works for line and polygon labels, but points has not area/size and will therefor newer be present in two neighbouring tiles. The result are clipped labels because only one tile will ever know about the presence of a point. If then the label should have been rendered into the next tile, it will be clipped. Metatiles (requesting more than one tile at a time and splitting it up on the tile server) helps, but only a little, as the same problem will occur between metatiles. A solution would be that MapServer rendered each tile (map) some percentage larger than requested, and then chops of the excess area before delivering the final map. A setting at the MAP level of the mapfile controlling this grow mechanism would be great, defining the percentage the map shall be extended before rendering. Second, is there any other way to solve the issue? Especially if there are already features in MapServer that can be used. Regards, Pål Kristensen - Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/Point-lables-and-tiles-tp2969528p2969528.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users - Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/Point-labels-and-tiles-tp2969528p2969950.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users - Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/Point-labels-and-tiles-tp2969528p2987684.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Point lables and tiles
Not within MapServer proper. The various tiling services use this metatile approach so it does work. You'd need an intermediary script to do the clipping for you. Steve On 5/28/2009 at 8:36 AM, in message 1243517779820-2987684.p...@n2.nabble.com, paalkr pal.kristen...@statkart.no wrote: Hi! OK, are there any methods that could be used to let MapServer produce a bigger image and then chop off excess area before sending the image to the client? I think that this would be the easiest and most flexible solution. Regards, Pål Kristensen Thomas Bonfort-2 wrote: it doesn't put any labels in the 10 outermost pixels surrounding the generated image (as they are chopped off by tilecache's metabuffer) thomas -- www.camptocamp.com +33 4 79 26 57 97 On Mon, May 25, 2009 at 16:45, paalkr pal.kristen...@statkart.no wrote: Hi! Thanks for the hint! The problem is that I'm using GeoWebCache and not tilecache :) Is the METADATA labelcache_map_edge_buffer -10 END a MapServer keyword? What does it do exactly? Any other possible solutions? Regards, Pål Kristensen Thomas Bonfort-2 wrote: http://lists.osgeo.org/pipermail/mapserver-users/2009-March/060214.html regards, thomas -- www.camptocamp.com +33 4 79 26 57 97 On Mon, May 25, 2009 at 15:00, paalkr pal.kristen...@statkart.no wrote: Hi! When creating tiles for my tilecache I have some issues regarding point labels. Using the PROCESSING label_no_clip=true works for line and polygon labels, but points has not area/size and will therefor newer be present in two neighbouring tiles. The result are clipped labels because only one tile will ever know about the presence of a point. If then the label should have been rendered into the next tile, it will be clipped. Metatiles (requesting more than one tile at a time and splitting it up on the tile server) helps, but only a little, as the same problem will occur between metatiles. A solution would be that MapServer rendered each tile (map) some percentage larger than requested, and then chops of the excess area before delivering the final map. A setting at the MAP level of the mapfile controlling this grow mechanism would be great, defining the percentage the map shall be extended before rendering. Second, is there any other way to solve the issue? Especially if there are already features in MapServer that can be used. Regards, Pål Kristensen - Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/Point-lables-and-tiles-tp2969528p2969528.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users - Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/Point-labels-and-tiles-tp2969528p2969950.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users - Regards, Pål Kristensen -- View this message in context: http://n2.nabble.com/Point-labels-and-tiles-tp2969528p2987684.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
