[Qgis-developer] How to generate DTM iso-curves of QGis canvas ?
Hello all, a simple question:) How to generate the SHP curves of a DTM layer , only inside the current QGis view, quickly and faster ? I tested with Processing Grass Nviz ... but nothing appears (after 10 minutes of waiting... ) Other ideas ? For example, the gdal_contour command can also take as input a window ? Thank you in advance for any info about it Roberto ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] How to generate DTM iso-curves of QGis canvas ?
Hello Roberto, If your DTM raster is in *.bil or *.asc format then you can use LAStools' las2iso or blast2iso from the LiDAR Processing toolbox. All LAStools have native support for the BIL and ASC formats and convert these rasters on-the-fly into a point-cloud on a grid. Regards, Martin @rapidlasso -- http://rapidlasso.com - fast tools to catch reality On Tue, Feb 11, 2014 at 3:05 PM, Geo DrinX geodr...@gmail.com wrote: Hello all, a simple question:) How to generate the SHP curves of a DTM layer , only inside the current QGis view, quickly and faster ? I tested with Processing Grass Nviz ... but nothing appears (after 10 minutes of waiting... ) Other ideas ? For example, the gdal_contour command can also take as input a window ? Thank you in advance for any info about it Roberto ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] How to generate DTM iso-curves of QGis canvas ?
Hello Martin, If your DTM raster is in *.bil or *.asc format then you can use LAStools' las2iso or blast2iso from the LiDAR Processing toolbox. Ok. :) But, my DTM is a simple GeoTIFF. :( Do you know if gdal permits to create curves from a GeoTIFF DTM, clipped by a rectangle BBOX ? Perhaps, I need to clip my DTM, before, with the gdal_translate and then send the result to gdal_contour ... There is no way to do it in a single shot ? :) Who knows ? Thank you Roberto ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
