[GRASS5] r.in.gdal updates?
Markus Neteler
neteler at itc.it
Thu Apr 17 04:37:49 EDT 2003
On Fri, Mar 14, 2003 at 10:05:41PM -0800, Eric G. Miller wrote:
> On Fri, Mar 14, 2003 at 02:29:42PM +0100, Markus Neteler wrote:
> > On Thu, Mar 13, 2003 at 07:22:46AM -0800, Eric G. Miller wrote:
> > > On Thu, Mar 13, 2003 at 01:49:46PM +0100, Markus Neteler wrote:
r.in.gdal update:
> > > > Outstanding issue:
> > > > The CELL compression - I don't know how to apply that suggestion
Find attached a patch for testing from Eric Miller. Some test maps are
compressed now much (!) better - some files consumed only 10% of the space
after patching main.c of r.in.gdal.
Before submitting to CVS it needs tested with all possible raster types.
patch -p0 main.c < ringdal_main.c.diff
Enjoy,
Markus
PS: I have used cvs diff to create the file, hopefully in the right way.
-------------- next part --------------
555a556
> int (*raster_open_new_func)(char *, RASTER_MAP_TYPE) = G_open_raster_new;
570,577c571,586
< case GDT_CInt16:
< case GDT_CInt32:
< case GDT_CFloat32:
< case GDT_CFloat64:
< data_type = FCELL_TYPE;
< eGDT = GDT_CFloat32;
< complex = TRUE;
< break;
---
> case GDT_Byte:
> data_type = CELL_TYPE;
> eGDT = GDT_Int32;
> complex = FALSE;
> G_set_cell_format(0);
> raster_open_new_func = G_open_raster_new_uncompressed;
> break;
>
> case GDT_Int16:
> case GDT_UInt16:
> data_type = CELL_TYPE;
> eGDT = GDT_Int32;
> complex = FALSE;
> G_set_cell_format(1);
> raster_open_new_func = G_open_raster_new_uncompressed;
> break;
582a592
> G_set_cell_format(3);
595c605
< cfR = G_open_raster_new((char *)outputReal, data_type);
---
> cfR = (*raster_open_new_func)((char *)outputReal, data_type);
604c614
< cfI = G_open_raster_new((char *)outputImg, data_type);
---
> cfI = (*raster_open_new_func)((char *)outputImg, data_type);
624c634
< cf = G_open_raster_new((char *)output, data_type);
---
> cf = (*raster_open_new_func)((char *)output, data_type);
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