Author Topic: Null elevation  (Read 2695 times)


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Null elevation
« on: March 08, 2017, 04:39:49 PM »
Hello Agisoft,

Using 113 UAV images (with X,Y,Z) and 3 GCP with proper X,Y,Z-values

Everything like build dense cloud, etc. runs fine with my Python script
With Build 3772 the scripts stops ending up in the GUI-Console with:
2017-03-08 14:27:50     self.chunk.exportDem(saveDEM)
2017-03-08 14:27:50 RuntimeError: Null elevation

With Build-version 2834 and older versions it runs without any complaints and generates a proper report, DEM,etc.
There is an PhotoScan.Elevation-class, but how to handle it ? in previous builds, the reference height was obviously tkane from the GCP-data  !(?)

Alexey Pasumansky

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Re: Null elevation
« Reply #1 on: March 09, 2017, 10:42:41 AM »
Hello ruadi,

If you open this project is there any DEM at all? If it is there, can it be exported to file via GUI using default parameters?

PhotoScan.Elevation() class is a container for the DEM to be accessed via API, it has nothing to do with the height values for the control points.
Best regards,
Alexey Pasumansky,
Agisoft LLC