[GRASS-dev] [grass-code R][510] v.to.db option=length: please report line's 3d length

[Maciej Sieczka]

Martin Landa wrote:

> should be fixed in CVS.

After brief testing looks OK. Thanks much Martin!

Soon after I noticed v.to.db didn't report 3d length, I had
the same problem with v.distance (looking for a workaround),
which I noted down in the same ticket. Copying the note below:

Same request applies to v.distance. It apparently assumes
input points are flat too. Consider 2 3d points:

$ v.out.ascii start_3d
571600|5722275.5|1|1

$ v.out.ascii end_3d
571610|5722275.5|4|1

The distance between them is about 10.440307. Yet,
v.distance claims it's round 10:

$ v.distance -p from=start_3d to=end_3d  upload=cat,dist
col=to_cat,dist
from_cat|to_cat|dist
1|1|10.000000

Maciek