Re: [OSGeo-Discuss] geospatial algorithm to create area midway boundaries from lines ?

2020-03-09 Thread Komяpa
Hi, I had reasonably good results for something similar combining these things in PostGIS: - ST_Segmentize(geom, ST_Length(geom)/ST_NPoints(geom)) to generate extra points on long straight runs of your lines; - ST_DumpPoints to extract just the points; - ST_VoronoiPolygons to generate Voronoi

Re: [OSGeo-Discuss] geospatial algorithm to create area midway boundaries from lines ?

2020-03-07 Thread Micha Silver
here - any approximate interpolation about midway plus/minus would be fine... Karsten -Original Message- From: Pierre Abbat [mailto:p...@bezitopo.org] Sent: Friday, March 06, 2020 14:59 To: discuss@lists.osgeo.org Cc: karsten Subject: Re: [OSGeo-Discuss] geospatial algorithm to create a

Re: [OSGeo-Discuss] geospatial algorithm to create area midway boundaries from lines ?

2020-03-06 Thread Markus Neteler
06, 2020 14:55 > *To:* karsten > *Cc:* OSGeo-discuss > *Subject:* Re: [OSGeo-Discuss] geospatial algorithm to create area midway > boundaries from lines ? > > Hi Karsten, > > Probably this GRASS GIS Addon can help: > > https://grass.osgeo.org/grass7/manuals/addons/v.centerlin

Re: [OSGeo-Discuss] geospatial algorithm to create area midway boundaries from lines ?

2020-03-06 Thread karsten
: [OSGeo-Discuss] geospatial algorithm to create area midway boundaries from lines ? Hi Karsten, Probably this GRASS GIS Addon can help: https://grass.osgeo.org/grass7/manuals/addons/v.centerline.html If I got your wish right... Best, Markus karsten schrieb am Fr., 6. März 2020, 17:36: Hi

Re: [OSGeo-Discuss] geospatial algorithm to create area midway boundaries from lines ?

2020-03-06 Thread karsten
... Karsten -Original Message- From: Pierre Abbat [mailto:p...@bezitopo.org] Sent: Friday, March 06, 2020 14:59 To: discuss@lists.osgeo.org Cc: karsten Subject: Re: [OSGeo-Discuss] geospatial algorithm to create area midway boundaries from lines ? On Friday, 6 March 2020 17:36:15 EST karsten wrote

Re: [OSGeo-Discuss] geospatial algorithm to create area midway boundaries from lines ?

2020-03-06 Thread Pierre Abbat
On Friday, 6 March 2020 17:36:15 EST karsten wrote: > Hi All, > > a general geospatial question to all: > I am trying to find out if there is any existing geospatial algorithm (in > any open Open Source Geospatial software) that would allow to use a network > of lines as a start point and expand

Re: [OSGeo-Discuss] geospatial algorithm to create area midway boundaries from lines ?

2020-03-06 Thread Markus Neteler
Hi Karsten, Probably this GRASS GIS Addon can help: https://grass.osgeo.org/grass7/manuals/addons/v.centerline.html If I got your wish right... Best, Markus karsten schrieb am Fr., 6. März 2020, 17:36: > Hi All, > > a general geospatial question to all: > I am trying to find out if there

[OSGeo-Discuss] geospatial algorithm to create area midway boundaries from lines ?

2020-03-06 Thread karsten
Hi All, a general geospatial question to all: I am trying to find out if there is any existing geospatial algorithm (in any open Open Source Geospatial software) that would allow to use a network of lines as a start point and expand those in such a way that I can create new area boundaries for