[GRASSLIST:126] Merging two adjacent scanned maps

GRASS GRASS user
1

Hi,

I have next problem related to scanned maps. I have two scanned sheets of old maps. I have already calibrated/rectified them to new currently obligatory reference system. Now I would like to merge these two adjacent maps in one and then clip the shape of sheet in new reference system. I know haow to clip using mask and mapcalculator but I don't know haow to merge two scanned maps into one single first.

Thanks in advance for any help

Robert

2

Robert,

you can merge two or more raster maps with r.patch

  Otto

Hi,

I have next problem related to scanned maps. I have two scanned sheets of old maps. I have already calibrated/rectified them to new currently obligatory reference system. Now I would like to merge these two adjacent maps in one and then clip the shape of sheet in new reference system. I know haow to clip using mask and mapcalculator but I don't know haow to merge two scanned maps into one single first.

3

Robert.Siudak@imgw.pl said:

Hi,

I have next problem related to scanned maps. I have two scanned sheets of
old maps. I have already calibrated/rectified them to new currently
obligatory reference system. Now I would like to merge these two adjacent
maps in one and then clip the shape of sheet in new reference system. I
know haow to clip using mask and mapcalculator but I don't know haow to
merge two scanned maps into one single first.

r.patch

Moritz