On Fri, Dec 7, 2012 at 10:00 PM, Britton Ker= in <britton DOT kerin AT gmail DOT com> wrote:

I started going through your code as well, i= ts a lot more approachable than
Anthony's for sure. =A0I know GTS is sort of dead, very sad. =A0I still= like it
better than CGAL in some ways though, its simpler to interface as you say.<= br> And if its only needed for the delaunay traingulation there is the possibil= ity
to cut the dependency on any geometry library at some point.

Britton

On Fri, Dec 7, 2012 at 8:10 AM, Stefan Salewski <mail AT ssalewski DOT de> wrote:
> On Fri, 2012-12-07 at 14:34 +0100, Kai-Martin Knaak wrote:
>> Stefan Salewski wrote:
>>
>> > I just fixed some trivial bugs of my toy router and put some = pictures on
>> > my page:
>>
>> > http://www.ssalewski.de/Router.html.en
>>
>> Cool.
>> Just curious: Is there any reltion to the topo router project that= was
>> started during Google summer of code?
>>
>> I hope, your project is going fly!
>>
>> ---<)kaimartin(>---
>
> There are only some indirect relations to Anthony's router:
>
> -- I was impressed by his pictures
> -- I use GTS library for delaunay triangulation as he did
>
> Thats all -- I looked some hours at his code, but I was only able to > understand very small portions. The main problem for me was, that I wa= s
> not able to see relations between his code and the papers. He made muc= h
> use of functions of the GTS library, while I use that library only for=
> the initial delaunay triangulation. Indeed, it was my impression that = he
> followed not very close the papers and the PhD thesis of Tal Dayan. I<= br> > think that Anthony is a very smart person and he has coded much of his=
> own ideas. One problem is that low level C language makes it really ve= ry
> difficult to develop and debug such type of router.
>
> Currently I am investigating switching from GTS library to CGAL. GTS i= s
> plain C, so it was easy for me to code a Ruby interface for the Delaun= ay
> part. But GTS mailing list is inactive since May 2012 -- my subscripti= on
> failed, and the original authors is not really interested. GTS is ok f= or
> me, I do only need the initial constrained delaunay triangulation,
> exactly the neighbor vertices for each vertex. But I think I will have= a
> look at CGAL in the next weeks, its a large C++ library. Bindings to > other languages are not really well supported, there is some basic
> support for Java and Python. I read that CGAL makes use of templates,<= br> > which makes it difficult to build bindings which support all the
> functionality. I don't know enough about C++ to build direct bindi= ngs
> (Java and Python uses SWIG for the bindings), but with some plain C gl= ue
> code it should be possible.
>
> I hope there is nothing wrong with the CGAL license, seems to be dual<= br> > GPL and commercial. That should be OK, but there is a strange fork
> project site available: https://gforge.inria.fr/projects/cgal/
> Maybe it is only a mirror with GPL license, I have to investigate that= .
>
> Best regards
>
> Stefan Salewski
>
>
>