[geos-devel] Computational Geometry Problem

[Sanak]

Hi Jo,

You mean you want to know about "Incircle of an irregular polygon"?

I don't know that GEOS(or JTS) had already implement it,
but if not, you might google the word above. (and I hope GEOS(or JTS)
implement it)

The following site is written in Japanese, but the images may be helpful.
http://izumi-math.jp/K_Katou/tatamu/tatamu.htm

Regards,

Sanak.

2009/6/27 Jo <doublebyte at gmail.com>

> Hi,First of all, I apologize if this post is unrelated to the scope of the
> mailing list (I hope not).
> I have to find an algorithm to draw the maximum enclosed circle in a
> polygon, which is slightly different from the "well-known" geometry problem:
> "maximum empty circle"; in this case, not only all the vertices need to be
> outside the circle but also the entire perimeter of the polygon must *not*
> be inside the circle.
> I can get the center of the polygon using Voronoi Diagrams: anybody has any
> suggestions or recomendations of how to calculate its radius?
> Also, I would like to avoid as much as possible iterative processes (as
> they can be slow when dealing with a high number of polygons, that have
> complex frontiers)...
> It would be really appreciated any ideas on this, or even references to
> libraries that could help me... Im not finding a lot of stuff about this on
> the web :-/ Im using C/C++ but all ideas are welcome, really...
>
> Thanks in advance for your time!
>                                         cheers,
>                                                Jo
>
>
> --
> "Law 1: Every program can be optimised to be smaller. Law 2: There's always
> one more bug. Corollary: Every program can be reduced to a one-line bug."
>
>         (Lubarsky's Laws of Cybernetic Entomology)
>
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