On Tuesday 21 March 2006 08:13 am, Fredy O. Mejia wrote: > Dear all: > > I have a shapefile in UTM coordinate system and I would like to transform > it to Lat/Log coordinates (WSG84). The package PBSmapping contains > function convUL to transform between the two coordinate systems when data > is in the form of a data frame with attributes specifying the coordinate > system. However, when shapefiles are imported using function read.shape > (package maptools), a list instead of a data frame is generated. I could > extract all the polygons in the list and transform them, individually, but > I hope there is an easier way of doing that. Besides, the shapefile i'm > trying to convert has two different UTM zones (is from Guatemala, and it > covers zones 15 and 16). Any sugestions would be greatly appreciated. > > Thanks, > > Fredy > > [[alternative HTML version deleted]] >
Fredy, I would recommend performing the inverse projection with the GDAL/OGR library first. -- Dylan Beaudette Soils and Biogeochemistry Graduate Group University of California at Davis 530.754.7341 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
