I am using *R* and I am a senior at Western Carolina University and working
on my senior thesis and the data set in which I have are images of mineral
thin sections all separated into different groups of grains, magnetite,
quartz, etc.. either being a vector layer or a raster layer or any other
image format needed. I am wanting to calculate the distance between each
grain or the grain spacing, boundary to boundary, *NOT* center to center and
also have those distances given every 10 degrees on a 0 to 360 degree
directional scale. Is there any code out there that does this very exact
method? Or is there another program, ArcGIS 10 or Fragstats, R preferably.

Thanks,

-Michael Stillwagon

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