measuring the angle between intersecting lines: Does anyone know of any helpful tools/methods in R for measuring the angle between two intersecting lines in a map or an equation that would do so with the start and end latitudes and longitudes of the two lines? Or give directions of lines?
Cheers
Tracey
[[alternative HTML version deleted]]
_______________________________________________
R-sig-Geo mailing list
R-sig-Geo@r-project.org
https://stat.ethz.ch/mailman/listinfo/r-sig-geo
