[GRASS-user] 'Maximum vector line maps loaded'

GRASS GRASS user
1

Hi folks, I have this problem:

I’m trying to draw some 3d boreholes, I was able to draw about 70 of then, but I have about 110 boreholes and grass shows me this message:

‘Maximum vector line maps loaded’

So on other hand I have tried to use v.patch command to put all my boreholes on one vector layer only. But the v.path layer dont support 3d.

I have checked the documentation and there is a MAX_VECTS constant that limits the number of vectors my workspace can have.

I need some help to: or increase the MAX_VECTS variable value, or some other command like v.patch to unify all my boreholes.

Tnks you all,

Alec Ventura.

2

On Thu, Sep 29, 2016 at 9:08 PM, Alec Ventura <alecventura@hotmail.com>
wrote:

But the v.path layer dont support 3d.

At least in 7.2, v.patch supports merging 3D points. In some cases you may
need to provide some extra flags, but in general Z should work.

https://grass.osgeo.org/grass72/manuals/v.patch.html
https://trac.osgeo.org/grass/ticket/2433

I need some help to: or increase the MAX_VECTS variable value,

That must be done in the source code (it is not expected you add tens of
vectors to 3D view, you can open enhancement ticket). If you compile GRASS
on Linux, you could theoretically increase it.

or some other command like v.patch to unify all my boreholes.

Well, you could always work around it by exporting points using v.out.ascii
merging the files (e.g. with cat on Linux) and then importing them back
with v.in.ascii. But that's a workaround, v.patch should work.

Vaclav

3

Yeah, I notice that changes on v.patch, but I kind aprehensive to download 7.2 version because the download link was with a line through it, like it was deprecated or something =P.

I will try 7.3 that is in development.

Tnks.

Alec

···

De: Vaclav Petras wenzeslaus@gmail.com
Enviado: quinta-feira, 29 de setembro de 2016 22:30
Para: Alec Ventura
Cc: grass-user@lists.osgeo.org
Assunto: Re: [GRASS-user] ‘Maximum vector line maps loaded’

On Thu, Sep 29, 2016 at 9:08 PM, Alec Ventura <alecventura@hotmail.com> wrote:

But the v.path layer dont support 3d.

At least in 7.2, v.patch supports merging 3D points. In some cases you may need to provide some extra flags, but in general Z should work.

https://grass.osgeo.org/grass72/manuals/v.patch.html
https://trac.osgeo.org/grass/ticket/2433

I need some help to: or increase the MAX_VECTS variable value,

That must be done in the source code (it is not expected you add tens of vectors to 3D view, you can open enhancement ticket). If you compile GRASS on Linux, you could theoretically increase it.

or some other command like v.patch to unify all my boreholes.

Well, you could always work around it by exporting points using v.out.ascii merging the files (e.g. with cat on Linux) and then importing them back with v.in.ascii. But that’s a workaround, v.patch should work.

Vaclav

4

On Fri, Sep 30, 2016 at 8:21 AM, Alec Ventura <alecventura@hotmail.com>
wrote:

I kind aprehensive to download 7.2 version because the download link was
with a line through it, like it was deprecated or something =P.

Which line and where?

7.2 is the upcoming release. The binary is based on a dedicated stable
branch in Subversion.

I will try 7.3 that is in development.

7.3 is currently the latest state of the code (aka trunk in Subversion).

5

On Fri, 30 Sep 2016, Alec Ventura wrote:

Yeah, I notice that changes on v.patch, but I kind aprehensive to download
7.2 version because the download link was with a line through it, like it
was deprecated or something =P.

I will try 7.3 that is in development.

Alec,

   I have no problems running 7.0. 7.2, or 7.3 checked out from the
subversion repositories. They download, build, and run just fine.

   Use 7.3.svn unless something doesn't work, then repeat with 7.2.svn.

Rich

6

So, here are my experiences with v.path thought the weekend:

I have installed grass 7.3 and used v.path with Z flag. I have notice that almost all of my boreholes (I am working with 3d boreholes) was correctly placed, but a few (around 10 of 110) wasn’t. First I think about wrong field data.

But then I tried to merge then in another way:

I have generated 1 shape file for each borehole using v.out.ogr and merge then using Qgis. It worked beautifuly. So I am writing this because it may have an error on v.path or maybe an error on my thinking line. Either way I present a workaround for anyone there that may interest.

I can provide my workdata for anyone one grass develop team for v.path validation, you just have to ask =)

best regards for you all,

Alec Ventura.

De: grass-user grass-user-bounces@lists.osgeo.org em nome de Rich Shepard rshepard@appl-ecosys.com
Enviado: sexta-feira, 30 de setembro de 2016 09:59
Para: grass-user@lists.osgeo.org
Assunto: Re: [GRASS-user] ‘Maximum vector line maps loaded’

On Fri, 30 Sep 2016, Alec Ventura wrote:

Yeah, I notice that changes on v.patch, but I kind aprehensive to download
7.2 version because the download link was with a line through it, like it
was deprecated or something =P.

I will try 7.3 that is in development.

Alec,

I have no problems running 7.0. 7.2, or 7.3 checked out from the
subversion repositories. They download, build, and run just fine.

Use 7.3.svn unless something doesn’t work, then repeat with 7.2.svn.

Rich

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7

On Mon, Oct 3, 2016 at 8:23 AM, Alec Ventura <alecventura@hotmail.com>
wrote:

I can provide my workdata for anyone one grass develop team for v.path
validation, you just have to ask =)

Please, send the data to me together with what are the expected results
(like number of points, z min, z max).