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</o:shapelayout></xml><![endif]--></head><body lang=EN-SG link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#365F91'>I’m trying to generate a GeoTiff image from a LAS file using the sq. root of Intensity dimension and the pipeline as follows:<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#365F91'>[<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "type":"readers.las",<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "filename":"input.las"<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> },<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "type": "filters.ferry",<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "dimensions":"Intensity=>IntnstySqRt"<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> }, <o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "type":"filters.assign",<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "assignment":"IntnstySqRt[:] = IntnstySqRt / 256" <o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> },<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "type":"writers.gdal",<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "resolution": 0.05,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "data_type":"uint8",<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "output_type":"mean",<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "dimension":"IntnstySqRt",<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "gdalopts":"COMPRESS=JPEG,PHOTOMETRIC=YCBCR,BLOCKXSIZE=4096,BLOCKYSIZE=4096,GDAL_CACHEMAX=8000,NUM_THREADS=ALL_CPUS,TILED=YES", <o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "bounds":"([19370,20527],[39571,40865])", <o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> "filename":"output.tif"<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'> } <o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'>]<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#365F91'>However, error occurred:<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'>PDAL: filters.assign: Invalid value for argument 'assignment'.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#365F91'>Is it the correct use of filters.ferry and filters. assign…<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#365F91'>Please advise.<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#365F91'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#365F91'>Thank you.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#365F91'>Best Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#365F91'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#365F91'>Peter Lim<o:p></o:p></span></p><p class=MsoNormal><i><span style='color:#365F91'>GPS Lands (S) Pte Ltd</span></i><i><span style='color:#365F91'><o:p></o:p></span></i></p><p class=MsoNormal><o:p> </o:p></p></div><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br />
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