r.to.vect: use less memory
|Reported by:||mlennert||Owned by:|
Trying to convert a raster file to vector areas on a machine with 10GB, the process was killed after having used up all memory and swap.
The CELL raster in question is an output of i.segment, is quite large and has many small segments, i.e. many different raster values:
Rows: 53216 Columns: 49184 Total Cells: 2617375744 Although many of these cells are null: total null cells: 2061717280 non-null cells: 555658464
It would be nice if r.to.vect could handle such large files without using up so much memory.