Le mercredi 09 octobre 2013 04:44:58, Wayne Parrott a écrit : > Hi There, > I have been using GDAL/OGR in a project and it is going quite well. > I have been reprojecting data from various source formats into a single CRS > (using the C# bindings), but one issue I have come across is with the > associated OGR style information. > > Most of the font sizes in the source documents are stored in "map ground > units", so if I just copy the OGR style directly the text size will be > scaled up or down depending on the differences in the map units. > > So my question is, what is the best way of converting the map ground units > in the style specification from one CRS to another?
There's indeed no such mechanism in OGR itself. I guess this must be necessarily only if the units of the CRS are different, e.g. when converting from a geodetic (long/lat in degrees) CRS to a projected (most of the time in meters) CRS. You can use 1 deegree ~= 111 120 meters > > Many thanks for any help you can provide, > Wayne > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev -- Geospatial professional services http://even.rouault.free.fr/services.html _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
