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Python and Java API / ExportDEM as an XYZ file

« on: December 11, 2017, 05:35:35 PM »

Quick questoin that's been driving me crazy all weekend. From the GUI (V1.3.0) it's possible to export an elevation model as an *.xyz file that defines the surface on a grid as a series of readable points. In local coordinates a typical file output would look like this:

-4.5657   3.0712   -21.344
-4.1664   3.0712   -21.330
-4.1093   3.0712   -21.330
-4.0523   3.0712   -21.330
-3.5389   3.0712   -21.373
-3.4818   3.0712   -21.373 etc etc

However I can't work out how (if it's supported) to setup the exportDEM() function to achieve the same result.

The closest I get is:

2017-12-11 13:28:19 Traceback (most recent call last):
2017-12-11 13:28:19   File "/panfs/panasas01/ifac/jf13928/JOBS/171130_162506/settings/getDem_002.py", line 56, in <module>
2017-12-11 13:28:19     chunk.exportDem(path=DEMFile, format=PhotoScan.RasterFormat.RasterFormatXYZ, projection = chunk.crs, region = DEMregion, dx = DEMres, dy = DEMres)
2017-12-11 13:28:19 RuntimeError: Unsupported raster transform

From this code:

chunk.exportDem(path=DEMFile, format=PhotoScan.RasterFormat.RasterFormatTiles, projection = chunk.crs, region = DEMregion, dx = DEMres, dy = DEMres)

I've tried countless combinations of settings in chunk.exportDem(...)

Is this even possible or am i missing a trick?

Kind Regards

Dave