Hi.
I'm starting to write a simple program based on r.example.
For now the goal is to read a DEM file, change some values, and write out
another DEM file with the changed values.
The r.example creates the second DEM file but with the default region (how can
I change the region?) and does nothing to the values.
So, I tried this:
//********
for (row = 100; row < 200; row++)
{
if (G_get_raster_row(infd, inrast, row, data_type) < 0)
G_fatal_error(_("Unable to read raster map <%s> row
%d"), name, row);
for (col = 240; col < 350; col++) {
((CELL *) outrast)[col] = 2000;
}
if( G_put_raster_row(outfd, outrast, data_type) < 0 ) {
G_fatal_error(_("Failed writing raster map <%s>"),
result);
}
}
//********
But it's not writing the changed values.
I even tried changing the r.example as little as possible just changing this
function:
//********
CELL c_calc(CELL x)
{
x = x + 2000;
return x;
}
//********
But still didn't work. Any clues why it's not writing?
Thanks
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