I am working on software suite to create some geoscience models on Digital Elevation Models. Part of the process is to calculate the Insolation Time and Global Irradiance using r.sun. We are running into an issue where some of our rasters are too big and causing memory problems for r.sun.
Now the r.sun manual offers a solution by using the numpartitions paramater, and gives the equation memory_bytes = rows*cols*((IR*4+horizonsteps)/numpartitions + OR*4) as a way to compute the number of partitions required.
Unfortunately I can not find the default value for horizonstep anywhere. Does anyone know what the default value is so I can calculate the number of partitions required?
أكثر...
Now the r.sun manual offers a solution by using the numpartitions paramater, and gives the equation memory_bytes = rows*cols*((IR*4+horizonsteps)/numpartitions + OR*4) as a way to compute the number of partitions required.
Unfortunately I can not find the default value for horizonstep anywhere. Does anyone know what the default value is so I can calculate the number of partitions required?
أكثر...