Re: [R] divide polygon shapefile into 3 equal areas

This is super, thanks!! However, I cannot read in my shapefile. I am using readShapeSpatial and the error I receive is: Error in getinfo.shape(fn): Error opening SHP file. The projection is Irish Transverse Mercator!! Thanks in advance On Mon, Feb 29, 2016 at 6:35 PM, Barry Rowlingson <

Re: [R] divide polygon shapefile into 3 equal areas

This probably on the limit of acceptable LOCs on this list but here goes: makeVchopper <- function(pol){ bb = bbox(pol) delta = (bb[2,2] - bb[2,1])/10 xmin = bb[1,1]-delta ymin = bb[2,1]-delta ymax = bb[2,2]+delta choppoly = function(xmax){

Re: [R] divide polygon shapefile into 3 equal areas

Sounds like a fun little bit of code to write: - write a function that will return the area of a slice as a function of a parameter X that can vary between some bounds on your shape: left to right, or top to bottom etc. E.g. if you want to slice vertically, this could be the area of the part

Re: [R] divide polygon shapefile into 3 equal areas

ok thanks!! I would like to slice it vertically and have 3 distinct areas of equal area. So I need to chop it up into 3 areas of equal size essentially. There is no tool to do it in QGIS!! Thanks On Mon, Feb 29, 2016 at 5:51 PM, Barry Rowlingson < b.rowling...@lancaster.ac.uk> wrote: > On

Re: [R] divide polygon shapefile into 3 equal areas

On Mon, Feb 29, 2016 at 5:37 PM, Shane Carey wrote: > Hi, > > Is it possible to divide a polygon into 3 equal areas using R? Yes, in an infinite number of ways. Want to narrow it down? Specifically, you could slice it vertically, horizontally, or at any angle between. You

Re: [R] divide polygon shapefile into 3 equal areas

The r-sig-geo list might be a better place for this post. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Mon, Feb 29, 2016 at 9:37 AM, Shane

[R] divide polygon shapefile into 3 equal areas

Hi, Is it possible to divide a polygon into 3 equal areas using R? I cant seem to be able to do it in QGIS. Thanks -- Shane [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see