Boundary shape

[Malcolm Williamson]

Chris,
Have you considered a simple perimeter/area index? You can use v.report
to output these numbers.

Regards,
	-Malcolm Williamson

"C.D.Lloyd" wrote:
> 
> Hello,
> 
> I have tried to send part of this message before but I assume it did not
> reach the list due to list-related problems, apologies if you have
> received this before.
> 
> A colleague of mine is attempting to solve a problem that I'm hoping
> users of GRASS may be able to help with.
> 
> My colleague is looking for software that will characterise the
> complexity of the boundary of an area. That is, if the boundary of an
> area had very `wiggledy' complex edges then it would be distinct from an
> area of which the edges were very smooth. The ultimate aim is to
> describe and compare the shape of different boundaries of enclosed areas
> derived from an interpretation of remotely-sensed imagery.
> 
> I assume that a fractal-based approach would be a viable way to approach
> this problem. I am wondering, therefore, if anyone is aware of any GRASS
> programs, or indeed other software, that might be suitable for this purpose.
> 
> Also, has anyone heard of a GRASS module called r.le? Apprently, it is
> used to quantify landscape metrics. If anyone could suggest where it
> might be obtained I would apreciate the relevant information. Please
> could you send any replies to my email address as well as to the list.
> 
> Thanks in advance,
> 
> Chris Lloyd
> 
> --
> C.D.Lloyd
> Department of Geography,           Email: cdl195 at soton.ac.uk
> University of Southampton,         Phone: +44 (0)1703 592205
> Highfield,                         WWW:   http://www.soton.ac.uk/~cdl195
> Southampton,
> SO17 1BJ,
> England, UK