[Southeast-US] clines from Poly-QGIS help

kathi at spatialanalysisinc.com kathi at spatialanalysisinc.com
Fri Apr 24 09:32:04 PDT 2015


Thx. I've got v 7.0 so I'll switch and see if that works.

Kathi

-----Original Message-----
From: southeast-us-bounces at lists.osgeo.org
[mailto:southeast-us-bounces at lists.osgeo.org] On Behalf Of Jeff McKenna
Sent: Friday, April 24, 2015 12:27 PM
To: southeast-us at lists.osgeo.org
Subject: Re: [Southeast-US] clines from Poly-QGIS help

Hi Kathi,

I just tried the g.extension on Windows, and have no problems.  Note that I
use the grass71 binaries, which are updated daily
(http://wingrass.fsv.cvut.cz/grass71/).  You might want to try installing
from there.

-jeff


--
Jeff McKenna
MapServer Consulting and Training Services http://www.gatewaygeomatics.com/



On 2015-04-24 1:16 PM, kathi at spatialanalysisinc.com wrote:
> I'm trying the GRASS solution, and having a bit of an issue. Has anyone
> successfully run g.extenstion on windows?
>
> It appears to be trying to use the "which" command which is not a
> windows native command.
>
> Thx
>
> Kathi
>
> *From:*Newcomb, Doug [mailto:doug_newcomb at fws.gov]
> *Sent:* Thursday, April 23, 2015 11:26 AM
> *To:* Kathi Cotney
> *Cc:* southeast-us at lists.osgeo.org
> *Subject:* Re: [Southeast-US] clines from Poly-QGIS help
>
> Kathi,
>
> This looks close.
>
>
https://smathermather.wordpress.com/2011/09/16/what-is-the-center-line-of-a-
polygon-or-how-to-change-labeling-in-geoserver/
>
> GRASS 7 v.centerline addon looks like it may do the trick as well.
>
>
http://trac.osgeo.org/grass/browser/grass-addons/grass7/vector/v.centerline/
v.centerline.html
>
> Doug
>
> On Thu, Apr 23, 2015 at 9:38 AM, <kathi at spatialanalysisinc.com
> <mailto:kathi at spatialanalysisinc.com>> wrote:
>
>     Okay, I have a poly shapefile. I need to create some nice and
>     smoothi-ish looking centerlines from it. I'd like to use QGIS.
>
>     There are several ESRI Info level tools that do this, and ET
>     GeoWizards will create some for around $250 a license. HOWEVER, my
>     goal is to create smooth centerlines without buying either of those
>     tools.
>
>     Can anyone recommend a process in QGIS that will produce something
>     like this?
>
>     Thx!
>
>     Kathi Cotney
>
>
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> --
>
> Doug Newcomb
>
> USFWS
>
> Raleigh, NC
>
> 919-856-4520 ext. 14 doug_newcomb at fws.gov <mailto:doug_newcomb at fws.gov>
>
>
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