[GRASS-user] v.category chlayer issues

GRASS GRASS user
1

I have a vector feature with four areas and two layers. Each of the two layers is tied to a different sqlite table. I'm trying to make what is currently layer 2 the default, and to delete the no longer needed layer 1. I tried

v.category inp=new_ascii op=chlayer type=centroid layer=2,1 out=fixed
WARNING: Database connection and attribute tables for concerned layers are
          not changed
Processing features...

but it never stops processing and I have to kill it. The vector feature new_ascii only has four areas, so it's not computationally intensive. new_ascii layer 1 and 2 are both tied to a sqlite table.

I've looked at op=transfer, but haven't had luck with that yet either.

GRASS 7.0.4 on Arch linux if that matters.

Thanks, Dave

2

On Tue, Sep 13, 2016 at 5:01 PM, Dave Roberts <droberts@montana.edu> wrote:

I have a vector feature with four areas and two layers. Each of the two
layers is tied to a different sqlite table. I'm trying to make what is
currently layer 2 the default, and to delete the no longer needed layer 1.
I tried

v.category inp=new_ascii op=chlayer type=centroid layer=2,1 out=fixed
WARNING: Database connection and attribute tables for concerned layers are
         not changed
Processing features...

but it never stops processing and I have to kill it.

Thanks for reporting this bug. It has been fixed in all G7 branches
with r69469-71, please try.

The vector feature
new_ascii only has four areas, so it's not computationally intensive.
new_ascii layer 1 and 2 are both tied to a sqlite table.

I've looked at op=transfer, but haven't had luck with that yet either.

What exactly is the problem with op=transfer?

If you want to delete a layer, you need to use v.category op=del
cat=-1 layer=X. After that, you can safely move categories of another
layer to the now unused layer. If in doubt, check first with
v.category op=report.

HTH,

Markus M

GRASS 7.0.4 on Arch linux if that matters.

Thanks, Dave
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