arrows?

?arrows !


On Thu, Sep 15, 2011 at 6:17 PM, Jonathan Greenberg
<greenberg@ucdavis.edu>wrote:

> R-sig-geo'ers:
>
> Given an aspect raster (GDAL-readable), is there a way to plot the
> aspect image using arrows representing each cell's direction?  I'm
> assuming I have to convert the raster to a set of points -- are there
> arrow symbols and, if so, can you rotate them based on some parameter?
>
> Thanks!
>
> --j
>
> --
> Jonathan A. Greenberg, PhD
> Assistant Project Scientist
> Center for Spatial Technologies and Remote Sensing (CSTARS)
> Department of Land, Air and Water Resources
> University of California, Davis
> One Shields Avenue
> Davis, CA 95616
> Phone: 415-763-5476
> AIM: jgrn307, MSN: jgrn307@hotmail.com, Gchat: jgrn307
>
> _______________________________________________
> R-sig-Geo mailing list
> R-sig-Geo@r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>

	[[alternative HTML version deleted]]

