[GRASS5] some new r3.* modules and updates in grass6.1-cvs

[Soeren Gebbert]

Hi all,
i've made some changes to the following modules and implemented a 
new one in the current grass6.1-cvs:

Updates:

g.mremove
* added rast3d support

r3.to.rast
* better error handling (G_unopen_cell)

r3.out.vtk
* added new flag "-o" -- the scalefactor effects the origin

r.out.vtk
* documentation update
* added new flag "-o" -- the scalefactor effects the origin
* added new flag "-p" -- pointdata support if no elevation map is given
* added new option -- elevation value for 2D data

New module:

r3.in.rast
* converts 2d raster maps into one G3D map
* the number of 2D maps can be less than the depths of the G3D region, the
   last 2D map is used to fill the G3D raster

This module works only if the G3D resolution is equal to the 
current window resolution.



Thats all for the moment.
I want to implement a new module which produces 
cross-section 2D maps from a G3D map by a given 2D elevation map.

All modules and diffs (for CVS) are available at:

http://www-pool.math.tu-berlin.de/~soeren/grass/modules/


Because i have no CVS write access, it would be nice if somebody with 
write access can add the changes to the cvs. The needed diff's are 
available at my homepage (the link above).
It would be great too,
if somebody can test these modules, because i have only 2 test datasets. 
The modules are working fine at my machine (Fedora Core 3 Linux 32bit 
kernel 2.6.12, AMD 3000+ 512Mb RAM, grass6.1-cvs), but please use only 
testdatasets to prevent damage on your data, because im not able to 
emulate all errors which i try to handle ... .


Feel free to send me any comments, hints and critism about the modules.

Best regards
Soeren Gebbert