3)
-Original Message-
From: r-sig-geo-boun...@stat.math.ethz.ch
[mailto:r-sig-geo-boun...@stat.math.ethz.ch] On Behalf Of Roger Bivand
Sent: Thursday, June 17, 2010 11:51 AM
To: Don MacQueen
Cc: r-sig-geo@stat.math.ethz.ch; Colin Rundel
Subject: Re: [R-sig-Geo] Combining multiple polylin
This is something that rgeos is able to do and I believe that the necessary
functions are already implemented. GEOS provides a simple function called
LineMerge that looks at a collection of linestrings and joins any that share
endpoints.
There are some limitation as it just ignores more complex
Not a R solution. But does v.generalize in grass help?
http://grass.osgeo.org/wiki/V.generalize_tutorial
Nikhil Kaza
Asst. Professor,
City and Regional Planning
University of North Carolina
nikhil.l...@gmail.com
On Jun 12, 2010, at 8:05 PM, Don MacQueen wrote:
I have an input shapefile rep
On Sat, 12 Jun 2010, Don MacQueen wrote:
I have an input shapefile representing roads in a city, read into R where it
becomes a SpatialLInesDataFrame.
Looking at just one road at a time, it looks fine when plotted. But in the
underlying structure, the single real-world road has been broken up
I have an input shapefile representing roads in a city, read into R
where it becomes a SpatialLInesDataFrame.
Looking at just one road at a time, it looks fine when plotted. But
in the underlying structure, the single real-world road has been
broken up into many shorter polylines, and they are
