[GRASS-user] geotiff and tiff exprot

[maven apache]

Hi all :In fact I have post this question,but not got a answer/

I am using win grass 6.3, when export the raster data to tiff ,I can use two
command >
1

1) r.out.gdal  use this command the tiff I got is blank,and I am sure that
this tiff has the correct crs, since I have use the gdalinfo command to test
the black blank tiff.

2) r.tiff  use this command the tiff I got has not crs (Coordinate
System),although I can see the data(the lines of the road, it is not blank).

And before I export the data,I use the g.region command to identifier the
region.

So ,I wonder the problem is my fault or something else.
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