Take the 2-minute tour ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

I have a polygon layer which looks like this enter image description here.

I used the QGIS multiparts to singleparts tool and also polygon to lines. In both cases i got this type of result

enter image description here.

I want to extract polygon into individual lines like thisenter image description here

share|improve this question
    
this looks like a similar question, which may answer the question - gis.stackexchange.com/questions/48461/… –  Mark Sep 4 '13 at 8:11
    
I don't think the question is similar, and the answer is not useful as well. I use sextante in qgis. –  neogeomat Sep 4 '13 at 8:15
    
not even if you convert the polys to lines first? –  Mark Sep 4 '13 at 8:28
add comment

1 Answer 1

up vote 6 down vote accepted

You could use line-to-polygon tool (See How can I transform a polygon to a linestring in QGIS?) followed by v.clean command (See http://grass.osgeo.org/grass64/manuals/v.clean.html).

share|improve this answer
    
Is there something for qgis –  neogeomat Sep 4 '13 at 8:59
    
The first tools is from QGIS and is available through sextante analysis tools; Second comand is from GRASS, but is also available through Sextante (You need to have grass installed and configured in sextante). –  Alexandre Neto Sep 4 '13 at 11:28
    
take a look at : gis.stackexchange.com/questions/32192/… –  Kurt Sep 4 '13 at 15:17
    
first i used v.clean with break tool, then v.clean with rmdupl tool. The result are as i want but there are duplicates. –  neogeomat Sep 4 '13 at 17:26
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.