[pdal] las to geotif

[Adam Steer]

Hi Sergey - try reprojecting your source las file into a projected (in
metres) system and running again.

PDAL/GDAL pass projections through. Your input data are in degrees, your
output resolution is interpreted as the same unit, so resolution 1.0 is
interpreted as '1 degree'.

Hope that helps,

Adam

--
Dr Adam Steer
https://spatialised.net
Available for consulting/open for headhunting

On Sat, Jun 8, 2024, 07:33 Sergey Yefimov via pdal <pdal at lists.osgeo.org>
wrote:

> Hi,
> I try to convert las to geotiff using this pipeline
>
> "pipeline":[
> {"type" : "readers.las",
> "filename":"C:\\KVData\\source\\las\\test.las"
> },
> {
> "type":"writers.gdal",
> "filename":"C:/KVData/source/tiff/ttest.tif",
> "resolution":1.0,
> "output_type":"all",
> "gdaldriver":"GTiff"
> }
>     ]
>
> After conversion invalid 2 KB tiff file created. las info:
>
> {
>   "file_size": 137422487,
>   "filename": "C:\\KVData\\source\\las\\test.las",
>   "now": "2024-06-07T17:09:19-0400",
>   "pdal_version": "2.7.1 (git-version: Release)",
>   "reader": "readers.las",
>   "stats":
>   {
>     "bbox":
>     {
>       "EPSG:4326":
>       {
>         "bbox":
>         {
>           "maxx": -75.606374,
>           "maxy": 35.9592838,
>           "maxz": 29.71,
>           "minx": -75.6350255,
>           "miny": 35.942234,
>           "minz": -11.88
>         },
>         "boundary": { "type": "Polygon", "coordinates": [ [ [ -75.6350255,
> 35.942234, -11.88 ], [ -75.6350255, 35.9592838, -11.88 ], [ -75.606374,
> 35.9592838, 29.71 ], [ -75.606374, 35.942234, 29.71 ], [ -75.6350255,
> 35.942234, -11.88 ] ] ] }
>       }, ..
> "statistic":
>     [
>       {
>         "average": -75.62226764,
>         "count": 4907929,
>         "maximum": -75.606374,
>         "minimum": -75.6350255,
>         "name": "X",
>         "position": 0,
>         "stddev": 0.005315505055,
>         "variance": 2.825459399e-05
>       },
>       {
>         "average": 35.95136764,
>         "count": 4907929,
>         "maximum": 35.9592838,
>         "minimum": 35.942234,
>         "name": "Y",
>         "position": 1,
>         "stddev": 0.002706953159,
>         "variance": 7.327595404e-06
>       },..
> }
>
>
>
>
>
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