[GRASS-dev] ERROR: no null file for <rasterxxxx>

Hi,

I am opening a new raster file of nrows >100 and ncols > 100

writing a single row with values then closing the file.

It gives me this error.

“ERROR: no null file for ”

Any possible way to get through it,
close the file properly and not getting this error?

I have been trying to create a raster first, filling it with 0.0 and then closing it. But this does not influence Rast_open_new() since it is not connecting to the same name raster file existing on disk as long as it does not actually write the new raster to disk. The failsafe “ERROR: no null file for ” maybe called too early as it does not check for pre-existing file on disk with same name…

any help please?

Yann

On Tue, May 28, 2013 at 6:50 AM, Yann Chemin <ychemin@gmail.com> wrote:

Hi,

I am opening a new raster file of nrows >100 and ncols > 100
writing a single row with values then closing the file.

I think you can not close the file before you have written all rows.

Markus M

It gives me this error.

"ERROR: no null file for <rasterxxxx>"

Any possible way to get through it,
close the file properly and not getting this error?

I have been trying to create a raster first, filling it with 0.0 and then
closing it. But this does not influence Rast_open_new() since it is not
connecting to the same name raster file existing on disk as long as it does
not actually write the new raster to disk. The failsafe "ERROR: no null file
for <rasterxxxx>" maybe called too early as it does not check for
pre-existing file on disk with same name...

any help please?
Yann

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