[Osgeo4w-trac] [osgeo4w] #898: PDAL algs and pdal_wrench.exe don't work in latest QGIS versions

OSGeo4W trac_osgeo4w at osgeo.org
Sun Dec 14 03:45:46 PST 2025


#898: PDAL algs and pdal_wrench.exe don't work in latest QGIS versions
------------------------+---------------------------
Reporter:  andreaerdna  |      Owner:  osgeo4w-dev@…
    Type:  defect       |     Status:  new
Priority:  normal       |  Component:  Package
 Version:               |   Keywords:
------------------------+---------------------------
 PDAL processing algorithms (e.g. "Export to raster" or "Export to raster
 (using triangulation") and pdal_wrench.exe don't work in latest QGIS LTR
 3.40.13, QGIS 3.44.5 and QGIS 3.99.0-Master.

 The algorithm's execution log reports:

 {{{
 QGIS version: 3.40.13-Bratislava
 QGIS code revision: 6c6bebb0e7
 Qt version: 5.15.13
 Python version: 3.12.12
 GDAL version: 3.12.0
 GEOS version: 3.13.1-CAPI-1.19.2
 PROJ version: Rel. 9.7.0, September 1st, 2025
 PDAL version: 2.9.0 (git-version: 42b180)
 Algorithm started at: 2025-12-14T11:57:59
 Algorithm 'Export to raster' starting…
 Input parameters:
 { 'ATTRIBUTE' : 'Z', 'FILTER_EXPRESSION' : '', 'FILTER_EXTENT' : None,
 'INPUT' :
 'copc://C:/Users/Andrea/Downloads/2034000_7275500_LIDAR2021.copc.laz',
 'ORIGIN_X' : None, 'ORIGIN_Y' : None, 'OUTPUT' : 'TEMPORARY_OUTPUT',
 'RESOLUTION' : 1, 'TILE_SIZE' : 1000 }

 wrench command: C:/OSE37B~1/apps/qgis-ltr/./pdal_wrench.exe to_raster
 --input=C:/Users/Andrea/Downloads/2034000_7275500_LIDAR2021.copc.laz
 --output=C:/Users/Andrea/AppData/Local/Temp/processing_TfzXfh/017254694c134706ad41d27cb61c8738/OUTPUT.tif
 --attribute=Z --resolution=1 --tile-size=1000 --threads=4
 0....10....20....30....40....50....60....70....80....90....100 - done.
 Warning 1: Can't open
 C:/Users/Andrea/AppData/Local/Temp/processing_TfzXfh/017254694c134706ad41d27cb61c8738\OUTPUT\0_0.tif.
 Skipping it

 Process completed successfully
 Execution completed in 2.43 seconds
 Results:
   OUTPUT:
 C:/Users/Andrea/AppData/Local/Temp/processing_TfzXfh/017254694c134706ad41d27cb61c8738/OUTPUT.tif

 Loading resulting layers
 The following layers were not correctly generated.
 •
 C:/Users/Andrea/AppData/Local/Temp/processing_TfzXfh/017254694c134706ad41d27cb61c8738/OUTPUT.tif
 You can check the 'Log Messages Panel' in QGIS main window to find more
 information about the execution of the algorithm.
 }}}


 The issues occurs also directly executing pdal_wrench in the OSGeo4W
 Shell:

 {{{
 pdal_wrench.exe to_raster
 --input=C:/Users/Andrea/Downloads/2034000_7275500_LIDAR2021.copc.laz
 --output=C:/Users/Andrea/Downloads/exportedcopc.tif --attribute=Z
 --resolution=1 --tile-size=1000 --threads=4
 0....10....20....30....40....50....60....70....80....90....100 - done.
 Warning 1: Can't open C:/Users/Andrea/Downloads\exportedcopc\0_0.tif.
 Skipping it
 }}}

 The issue doesn't occur if pdal_wrench.exe, provided by the qgis-
 ltr-3.40.13-1 package, is replaced with the one from the qgis-
 ltr-3.40.12-1 package.

 I suppose the issue may be due to the fact that while pdal_wrench.exe in
 qgis-ltr-3.40.13-1 is built against gdal312, pdalcpp.dll (which
 pdal_wrench.exe depends on) is still build against gdal311.
-- 
Ticket URL: <https://trac.osgeo.org/osgeo4w/ticket/898>
OSGeo4W <http://trac.osgeo.org/osgeo4w>
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