Yes Peter. I'm trying to get the Thiessen polygons.
Thanks for the tips, but the Polygonize method of OGRMultiLineString worked
for me.
Thank you.
2013/3/15 Peter Halls p.ha...@york.ac.uk
Alisson,
in vector mode, where you are working with linestrings, the procedure
is as described in
Thank you Chaitanya,
I had read the explanation of Peter Halls. But that was *raster
polygonization*. I am currently working with another type: *polygonization
of OGRLineStrings*.
My question was because i was not able to polygonize using the mentioned
method. I created an OGRMultiLineString or
Alisson,
Can you provide a sample dataset that didn't work?
On Fri, Mar 15, 2013 at 6:20 PM, Alisson Barbosa alisson.u...@gmail.comwrote:
Thank you Chaitanya,
I had read the explanation of Peter Halls. But that was *raster
polygonization*. I am currently working with another type:
Alisson,
in vector mode, where you are working with linestrings, the procedure
is as described in Stephen Wise's book, GIS Basics (Taylor Francis, 2002)
chapters 2 - 4. You will need to compute the intersection of all the lines
(Chapter 3), split them at the intersections and either
Hi friends,
I have a set of OGRLineStrings and an OGRLinearRing with many
intersections. I would like to polygonize this set of lines. Can anybody
help me?
Best regards,
--
Alisson Barbosa
Systems Analyst - FUNCEME
M.Sc. in Computer Science - MACC
Graduate in Computer Science - UECE
Allison,
Check out OGRGeometry::Polygonize()
The result depends on the type of intersections in your lines.
--
Best regards,
Chaitanya Kumar CH
On 14 Mar 2013 21:53, Alisson Barbosa alisson.u...@gmail.com wrote:
Hi friends,
I have a set of OGRLineStrings and an OGRLinearRing with many
Can you explain a bit better?
2013/3/14 Chaitanya kumar CH chaitanya...@gmail.com
Allison,
Check out OGRGeometry::Polygonize()
The result depends on the type of intersections in your lines.
--
Best regards,
Chaitanya Kumar CH
On 14 Mar 2013 21:53, Alisson Barbosa alisson.u...@gmail.com
Alisson,
You can refer to the method's documentation here:
http://www.gdal.org/ogr/classOGRGeometry.html#a674319670e735bf6d4049300096157ec
The mechanism of this operation was already explained Peter Halls in this
mailing list[1]. GEOS does a good job identifying line strings touching at
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