[gdal-dev] how to union(merge) polygons using ogr?

2013-10-27 Thread ??????
Hi all, I need to union(make OGRGeometry wkbPolygon and that has no interiorRings) polygons in the following 2 situations: 1. OGRFeature::getGeometryType() returns wkbPolygon and OGRPolygon::getNumInteriorRings() returns an int that is bigger than 0. 2. OGRFeature::getGeometryType() returns wkbM

Re: [gdal-dev] GPKG Driver

2013-10-27 Thread Even Rouault
Paul, > Couple questions: > > - Did anything happen on the summer of code suggestion, or any other > independent development front? No related activity on SoC side, and no public activity on it that I'm aware of (apart from some interest in doing so mentionned) > > - On the "wrap it into the

[gdal-dev] GPKG Driver

2013-10-27 Thread Paul Ramsey
Hey all, I'm preparing to do up a GeoPkg driver. In searching the mail history and the web, the only references I see so far are suggestions as a summer of code project (which weren't taken up?) which included the recommendation of wrapping it into the existing sqlite driver. Couple questions: -

Re: [gdal-dev] Setting the georeferencing priority for GDAL

2013-10-27 Thread Frank Warmerdam
Jukka, Part of why behavior is inconsistent now is that the logic is in each driver. Some might give precidence to a world file over something internal, or to .aux.xml. I think it would be *desirable* for .aux.xml to take precedence over internal information when it is available as it is normal

[gdal-dev] Setting the georeferencing priority for GDAL

2013-10-27 Thread Jukka Rahkonen
Hi, Sometimes an image can have several and ambiguous metadata for georeferencing. Mapserver has a method to deal with ambiguous internal geotiff metadata and world files and user can override the internal metadata by using PROCESSING "EXTENT_PRIORITY=WORLD" in the mapfile. http://www.mapserver.or