Hi Everyone, I just wanted to ask - Is this the right place to post questions? I put in a post several days ago, and just want to make sure I'm putting it in the right place, because I have not posted to this group before. Thank you - KC
---------- Forwarded message --------- From: Open Land LLC <realoptio...@gmail.com> Date: Mon, Jul 15, 2024 at 9:00 PM Subject: How to add labels to DEM contour lines To: <gdal-dev@lists.osgeo.org> Hi everyone, this is my first post. I've also posted this to https://stackoverflow.com/questions/78751101/labelling-contour-lines-with-ogr-style I'm trying to add labels to DEM contour lines. I'm working with GDAL 3.6.2. , which I installed using Anaconda . I have some DEM data from USGS which I wrote as a contour map to a KML file using: gdal_contour small.tif /home/ubuntu/node/geotools/contour.kml -i 3.0 -f KML -a ELEVATION When I open contour.kml in vim, I can see that its made up of features like: <Placemark> <Style><LineStyle><color>ff0000ff</color></LineStyle><PolyStyle><fill>0</fill></PolyStyle></Style> <ExtendedData><SchemaData schemaUrl="#contour"> <SimpleData name="ID">39</SimpleData> <SimpleData name="ELEVATION">525</SimpleData> </SchemaData></ExtendedData> <LineString><coordinates>-89.2626638689733,46.1525006611575 -89.262663868958,46.1525469572921 -89.2627325352002,46.152622208059 -89.2628251277396,46.1526266807347 -89.2629177202847,46.1526141000471 -89.2629982621728,46.1525469573863 -89.2629982621882,46.1525006612516</coordinates></LineString> </Placemark> Clearly there is a style component available , but I'm not sure how to work with it to add elevation labels or custom colours. My suspicion is that OGR_STYLE is used to do things like this ( https://github.com/OSGeo/gdal/issues/835)(https://gdal.org/user/ogr_sql_dialect.html#ogr-style ), but I can't find any examples. How can this be done? Thank you very much, KC
_______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/gdal-dev
