Exported LAS file error, File Signature not b'LASF'

[Jernej]

Hello

I am trying to read an exported LAS file in python with PYLAS but I get an error saying: "Error: File Signature (b'<?xm') is not b'LASF'"

I am using this code to export the dense cloud as LAS file:

Code: [Select]

chunk.exportPoints(path=projectPath + tempFileName,
                       source_data=Metashape.DenseCloudData,
                       save_normals=True,
                       save_colors=True,
                       save_classes=True,
                       save_confidence=True,
                       format=Metashape.PointsFormatLAS
                       )and this bit to read the file:

Code: [Select]

las = pylas.read(projectPath+projectFile)
I only get this error from files exported in Metashape ( my current version is v1.7.1 build 11797). I have tried manual export with the default settings but to no avail. If I read a file I downloaded from the internet for testing, it works without problems.

What could be the problem here?
Thank you for your help.

[Alexey Pasumansky]

Hello Jernej,

Are you able to open the LAS files exported from Metashape in any other applications, like Cloud Compare or Global Mapper?

[Jernej]

Hello Alexey

Thank you for the response. The reason for the error was a typo in my code. I was trying to read .psx file instead of a .las file