Export GCPS with error values

[spatialdigger]

Hi, I'm trying to export the Ground Control Points and the associated error - I'm wanting to assess the error in a script.

I've seen this, but it does not deport the error columns or the overall error

Code: [Select]

saveReference(path, format = PhotoScan.ReferenceFormatCSV, items = PhotoScan.ReferenceItemsCameras, delimiter = ",")
How is this achieved?

[Alexey Pasumansky]

Hello spatialdigger,

Please try the following command:

Code: [Select]

chunk.exportReference(path, format = Metashape.ReferenceFormatCSV, items = Metashape.ReferenceItemsMarkers, delimiter = ",", columns = "nxyzUVW")

[spatialdigger]

Is there any way to access the nxyzUVW values in python without exporting them?

Would it be something like:

Code: [Select]

n = Metashape.ReferenceItemsMarkers.n
or

Code: [Select]

n, x, y, z, U, V, W, = Metashape.ReferenceItemsMarkers

[Alexey Pasumansky]

Hello spatialdigger,

You can check, how the estimated values are calculated in the following script, and then subtract source values to get errors:
https://github.com/agisoft-llc/metashape-scripts/blob/master/src/save_estimated_reference.py