[R-sig-Geo] measuring longitudes as if they were parallels?

Dear all, Here's another issue that I've been struggling with and I'd really appreciate any input. I want to compare the latitudinal and longitudinal extents of different shapefiles. Comparing latitudes is straightforward because they are measured as parallels, so they are self-referential.

Re: [R-sig-Geo] finding limits in a shapefile

). On Friday, 31 July 2015, john d dobzhan...@gmail.com wrote: Dear all, Is there a simple way to obtain the coordinates for the N, S, E and W limits of a shapefile? Thanks [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo

Re: [R-sig-Geo] measuring longitudes as if they were parallels?

Cool. I'll look into that. Thanks. Loïc! On Fri, Jul 31, 2015 at 3:44 PM, john d dobzhan...@gmail.com wrote: Cool. I'll look into that. Thanks. Loïc! On Fri, Jul 31, 2015 at 1:21 PM, Loïc Dutrieux loic.dutri...@wur.nl wrote: Hi John, Possibly what you're looking for is in the geosphere

[R-sig-Geo] finding limits in a shapefile

Dear all, Is there a simple way to obtain the coordinates for the N, S, E and W limits of a shapefile? Thanks [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org

[R-sig-Geo] generating coordinates at equal geographical distances

Dear all, I need to generate coordinates that are equidistant, regardless of latitude. Any suggestions? Thanks! John [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org

Re: [R-sig-Geo] generating coordinates at equal geographical distances

you question a bit more! :) On Wed, Aug 28, 2013 at 3:49 PM, john d dobzhan...@gmail.com wrote: Dear all, I need to generate coordinates that are equidistant, regardless of latitude. Any suggestions? Thanks! John [[alternative HTML version deleted