[GRASS-dev] Data type changes in g3d lib and related modules

Glynn Clements glynn at gclements.plus.com
Sun Feb 18 08:56:19 EST 2007


Sören Gebbert wrote:

> i would like to replace the separate data type definitions in the g3d 
> lib with the definitions from gis.h.
> 
> In the g3d lib the following definitions are made:
> 
> #define G3D_FLOAT 0
> #define G3D_DOUBLE 1
> 
> G3D_FLOAT stands for the data type float, G3D_DOUBLE for double.
> 
> I would like to remove those two definitions in G3d.h and replace them 
> in the libs and modules with:
> 
> G3D_FLOAT -> FCELL_TYPE
> G3D_DOUBLE -> DCELL_TYPE
> 
> Because the data types are the same (float, double), it makes IMHO
> no sense to have separate definitions in raster and raster3d library.
> And it simplifies the creation of modules which use raster and rast3d 
> maps together.
> 
> I have created a patch
> http://www-pool.math.tu-berlin.de/~soeren/grass/modules/grass6_datatype_patch.diff
> 
> and if nobody has any objections against it, i would like to submit 
> these changes to CVS.

> extern inline float N_get_array_3d_value_fcell (N_array_3d * array3d, int col, int row, int depth);
> extern inline double N_get_array_3d_value_dcell (N_array_3d * array3d, int col, int row, int depth);
> extern inline void N_put_array_3d_value_fcell (N_array_3d * array3d, int col, int row, int depth, float value);
> extern inline void N_put_array_3d_value_dcell (N_array_3d * array3d, int col, int row, int depth, double value);

FWIW, libgis uses _f and _d in function names, as opposed to _fcell
and _dcell.

-- 
Glynn Clements <glynn at gclements.plus.com>




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