[R-sig-Geo] [R-sig-geo] Sum lines when they intersect polygons
Jacob van Etten
jacobvanetten at yahoo.com
Fri Apr 8 11:41:08 CEST 2011
Do you want to measure the *length* of the coastline in each grid cell?
Or do you want to measure the *presence* of the coastline in each cell?
--- On Fri, 8/4/11, jonathan daeden <jonathan.daeden at gmail.com> wrote:
> From: jonathan daeden <jonathan.daeden at gmail.com>
> Subject: [R-sig-Geo] [R-sig-geo] Sum lines when they intersect polygons
> To: r-sig-geo at r-project.org
> Date: Friday, 8 April, 2011, 10:10
> Dear list,
> I am looking for a way to measure lines crossing polygones
> or a grid.
> I have a line shapefile representing a coastline and a
> regular grid over it.
> I would like to measure the coastline in each cells of the
> grid and keep it
> in a data.frame.
> Could not make it with Qgis so i would like to try with R.
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