Introduce a new 64-bit integer raster data type
|Reported by:||mlennert||Owned by:|
"Most importantly, a GRASS raster format for 64-bit signed integer. Note that GDAL does not support 64-bit signed or unsigned integers. The reason is probably that a portable implementation of 64-bit integers is not so easy. Regarding GRASS raster processing, the need for 64-bit integers usually arises only for raster maps with more than 2,147,483,647 cells which in turn usually requires Large File Support (LFS). Therefore the check for the availability of a 64-bit integer could be coupled to LFS. If support for 64-bit signed integer raster maps (say, LCELL) could be added to GRASS, users would need to stick to GRASS since GDAL raster export of 64-bit integers is not available. Interesting idea."
"As of r68944, i.segment supports regions with more than 2,147,483,647 cells, but the number of final objects must not exceed 2,147,483,647. This can only be solved by introducing a new 64 bit integer data type in addition to CELL, FCELL, DCELL, something for GRASS 8 maybe."