GRASS 7.4: r.cross unexpectedly produces category zero

Question

I have a problem with the output of r.cross. I hope you can follow my description without MWE:

I have 3 rasters I want to cross with the following characteristics:

GRASS 7.4.0 (Bengue):~ > r.stats soil_t,lcov,watermask -N
 100%
4 8 0
4 8 1
4 9 0
[...]

I would expect r.cross to create a raster with a category for each line shown above. However, I get the following:

GRASS 7.4.0 (Bengue):~ > r.cross input=soil_t,lcov,watermask output=svc    
GRASS 7.4.0 (Bengue):~ > r.category svc
0   
1   category 4; category 8; category 1
2   category 4; category 9; category 0
[...]

Why is the first line just zero when one would rather expect something like: 1 category 4; category 8; category 0?

EDIT: Just noticed that under GRASS version 6.4 it runs as expected:

GRASS 6.4.6 (Bengue):~ > r.category svc
0   
1   category 4; category 8; category 0
2   category 4; category 8; category 1
3   category 4; category 9; category 0

So, something must be wrong with the 7.4 version of r.cross?!

Thanks for your help!

System infos:

GRASS version 7.4.0
Ubuntu MATE 16.04 (xenial)

score 0 · Answer 1 · answered Jun 14 '18 at 14:41

just in case somebody comes across this post: It was also asked in the mailing list shortly after this post by somebody else: https://lists.osgeo.org/pipermail/grass-user/2018-February/077934.html. As it seems, it is a bug and not yet fixed in the latest release version of GRASS.

GRASS 7.4: r.cross unexpectedly produces category zero

1 Answers1