[R-sig-Geo] maptools package rejects some polygon shapefiles?

[Rick Reeves]

News flash: the read.shapefile() method in the shapefiles package reads
the file. 

btw, this is a shapefile based on the VMAP0 / DCW dataset.

RR

Scientific Programmer / Quantitative Analyst
National Center for Ecological Analysis and Synthesis
University of California, Santa Barbara
805 892 2534
reeves at nceas.ucsb.edu



-----Original Message-----
From: r-sig-geo-bounces at stat.math.ethz.ch
[mailto:r-sig-geo-bounces at stat.math.ethz.ch] On Behalf Of Rick Reeves
Sent: Wednesday, May 11, 2005 9:46 AM
To: r-sig-geo at stat.math.ethz.ch
Subject: [R-sig-Geo] maptools package rejects some polygon shapefiles?




Greetings: 

Using maptools in the Win XP environment, trying to
display an ESRI Shapefile (created with ArcMAP GIS ver 9)
outline map of North America. read.shape throws error:
Error in read.shape: Not a valid shape type. 

read.sahpe does read (and plot displays) a point shapefile 
created on the same platform. 

Any hints on determining the problem with 'not valid' shapefiles
in R? 

Thanks, 
Rick R


Scientific Programmer / Quantitative Analyst
National Center for Ecological Analysis and Synthesis
University of California, Santa Barbara
805 892 2534
reeves at nceas.ucsb.edu

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