Hello, > Lidar data in LAS format are increasingly widespread. Leaving aside all 3D > frenzy, we > would be interested in simply displaying them in QGIS, with their useful > attributes > (classification and intensity), either with a native driver or through an > available > library.
I am *very* interested in supporting this in any way I can. My original background is Computer Graphics so writing point rendering engines is something I "should" be good at (makes you wonder, though, if you ever used lasview) ... (-; I have been spending a lot of time capacity building in the Asia / Pacific region and the combination of QGIS and LAStools could be a much more useful training tool if there was native LAS/LAZ visualization and simple editing in QGIS. ESRI's ignorant move [1,2,3] on creating a new proprietary LiDAR format puts this on the front-burner for several passionate geo-geeks. I suggest to do this in a multi-step approach: (1) single LAS/LAZ file support: biggest (initial) bang for this buck. a relatively simple in-core point viewer with basic point inspecting, coloring, and editing capacity. This alone would cause ripples. (2) area-of-interest selection from one/multiple LAS/LAZ files from a corresponding map of boundary polygons and/or hillshade or intensity rasters computes for the LiDAR (3) long term: support for interactive browsing of entire LiDAR projects via pyramiding and spatial indexing from (slightly-processed) folders of LAS/LAZ or via a PDAL/PostGIS pipeline connection. I would be excited to get personally involved starting on (1) followed by (2) asap. The OSGeo Code Sprint in Vienna would seem like the perfect gathering to get a skeleton functionality in place as several names in this thread are listed to show up there. [1] http://rapidlasso.com/2013/12/30/new-compressed-las-format-by-esri/ [2] http://blog.lidarnews.com/esri-announces-las-compression [3] http://boundlessgeo.com/2014/01/lidar-format-wars/ > All the licensing issues around libLAS/LSTools are a bit obscure to me, so > I > wonder if someone has already dealt with this. My bad, sorry for that. In preparation for a new feature release I have simplified the license and the wording for LAStools / LASlib / LASzip (or so I hope). http://lastools.org/LICENSE.txt Hope to see many of you in Vienna. Martin @LAStools -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Lidar-data-into-QGIS-tp5100547p5100834.html Sent from the Quantum GIS - Developer mailing list archive at Nabble.com. _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
