Re: [Qgis-user] Fwd: Merging polygons leaves isolated lines

2014-04-29 Thread Alex Mandel
On 01/19/2014 07:09 AM, Richard Duivenvoorde wrote: > On 15-01-14 19:28, Lynkos wrote: >> Thanks Paolo for the rapid response. It does look as though my problem >> is related. Any guidance on how I can clean up the original shapefile? >> Sarah. > > Hi Sarah, > > I was curious what was happening h

Re: [Qgis-user] Fwd: Merging polygons leaves isolated lines

2014-01-19 Thread Richard Duivenvoorde
On 15-01-14 19:28, Lynkos wrote: > Thanks Paolo for the rapid response. It does look as though my problem > is related. Any guidance on how I can clean up the original shapefile? > Sarah. Hi Sarah, I was curious what was happening here, and was questioning if it was a QGIS fault, or a GEOS (the u

Re: [Qgis-user] Fwd: Merging polygons leaves isolated lines

2014-01-16 Thread Lynkos
Thanks to everyone for the help and suggestions so far. I've uploaded all the shapefile parts here (sorry, yesterday I was in a rush and I just wasn't thinking): https://www.dropbox.com/s/ru4s3bi2bt5z4c2/QGIS-merge.zip This file is the result of several "save-as" operations, so the problem outlin

Re: [Qgis-user] Fwd: Merging polygons leaves isolated lines

2014-01-15 Thread Tim Sutton
HI Sarah Can you post all the parts of the shapefile that others may test (.shp alone is not enough we need .dbf and .shx too). Regards Tim On Wed, Jan 15, 2014 at 8:28 PM, Lynkos wrote: > Thanks Paolo for the rapid response. It does look as though my problem is > related. Any guidance on ho

Re: [Qgis-user] Fwd: Merging polygons leaves isolated lines

2014-01-15 Thread Paolo Cavallini
Il 15/01/2014 21:06, Richard Duivenvoorde ha scritto: > On 15-01-14 19:28, Lynkos wrote: >> Thanks Paolo for the rapid response. It does look as though my problem >> is related. Any guidance on how I can clean up the original shapefile? >> Sarah. > > Hi All, > > People from the Technical Universi

Re: [Qgis-user] Fwd: Merging polygons leaves isolated lines

2014-01-15 Thread Richard Duivenvoorde
On 15-01-14 19:28, Lynkos wrote: > Thanks Paolo for the rapid response. It does look as though my problem > is related. Any guidance on how I can clean up the original shapefile? > Sarah. Hi All, People from the Technical University Delft have created an automated way for: "Validation and Automat

Re: [Qgis-user] Fwd: Merging polygons leaves isolated lines

2014-01-15 Thread Lynkos
Thanks Paolo for the rapid response. It does look as though my problem is related. Any guidance on how I can clean up the original shapefile? Sarah. 2014/1/15 Paolo Cavallini > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Il 15/01/2014 18:17, Lynkos ha scritto: > > I've been given a shap

Re: [Qgis-user] Fwd: Merging polygons leaves isolated lines

2014-01-15 Thread Paolo Cavallini
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Il 15/01/2014 18:17, Lynkos ha scritto: > I've been given a shape file representing a vegetation map which I now have to > modify, merging a number of polygons. When I do this, in almost all cases the > merge > leaves a number of lines, either attache