[GRASS5] v.to.db 2 new features compactness and perimeter

[Wolf Bergenheim]

I messed up the previous patch...

Here is a new one!

--Wolf

On 03/11/05 18:27, Wolf Bergenheim wrote:
> Hi!
> 
> I fixed my fix for supporting compactness in v.to.db. I also added
> support for perimeter option which calculates the perimeter of an area.
> Compactness is calculated by doing:
> 
> compactness = perimeter / 2 * sqrt(M_PI * area)
> 
> which gives a circle the value 1 and all other shapes have a larger value.
> 
> Please have a look at my patch, and LMK if you think something is
> strange or out right wrong. I have tested these new options a bit, but I
> haven't really tested them on weird / broken material. I have also not
> tried to calculate the perimeter or compactness of lines. (;
> 
> --Wolf
> 

-- 

<:3 )---- Wolf Bergenheim ----( 8:>

-------------- next part --------------
A non-text attachment was scrubbed...
Name: v.to.db.wolf.patch
Type: text/x-patch
Size: 6611 bytes
Desc: not available
Url : http://lists.osgeo.org/pipermail/grass-dev/attachments/20051103/3204acf2/v.to.db.wolf.bin