On Thu, Sep 9, 2010 at 3:18 PM, binbin lu <lubinbin...@gmail.com> wrote: > Hi, > > Is there a function in any R package to correct arc-node topology of > a network? Similar with the Arcinfo function "Clean (Coverage)".
The GRASS GIS system can do this via v.clean: http://grass.fbk.eu/gdp/html_grass63/v.clean.html and there's some R-GRASS interoperability tools (I haven't played with them much, but others on this list have). I think it would be easier to do it with GRASS than for someone to implement sliver and dangle removal in R from scratch. That said, I do have some code from waaay back that does clean and build topology for the old-style R 'maps' data format. I've just recovered it from a backup from 1995 and if I get a chance I might see if it compiles and play with it. Prospects not good though! Barry _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
