Issue with Solar Radiation: Solar Energy of Builing Envelopes

[Lehiro]

Hi, it's my first time using UMEP, i did the tutorial and it went well
But when using my data I get this error, and I don't know what to do

File "C:\Users/Hiroshi/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\processing_umep\processor\sebe_algorithm.py", line 346, in processAlgorithm
seberesult = sebe.SEBE_2015a_calc(self.dsm, self.scale, building_slope,
File "C:\Users/Hiroshi/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\processing_umep\functions\SEBEfiles\SEBE_2015a_calc_forprocessing.py", line 125, in SEBE_2015a_calc
wallmatrix = wallmatrix * 0
numpy.core._exceptions._ArrayMemoryError: Unable to allocate 20.7 GiB for an array with shape (128631, 21646) and data type float64

[nilswallenberg]

Hi,

Looks like your trying to run SEBE on a huge raster (128631 x 21646 pixels) and run out of memory. Try a smaller area first or change the resolution.

Cheers,
Nils

[Lehiro]

thanks, it worked
but it shows a negative value