[GRASS-user] Vector Overlay Map Disappears in 3D View

[Hamish]

Rich wrote:
> Error in startup script: couldn't fork child process: not
> enough memory

check your computational region with 'g.region -p'.
The resolution should be set so that rows and columns do not
exceed ~ 40000 x 40000 or so. (unless you have lots of RAM)

when checking free memory with `free -m`, look on the "-/+ buffers/cache"
line. the rest is just ephemeral disk cache and is freed if a program
needs it.


>   Why are the raster files loaded twice each?

once to get the elevation value, once to get the color value.


Hamish