[sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-07-06 Thread Vincent D
> > I opened a ticket [1] for hyperbolic geometry. I implemented a general > > framework for the hyperbolic half plane (with point, geodesic, > > polygons) and the action of SL(2,R). > > > Any help or comment welcome. > > > Vincent > > >  [1]http://trac.sagemath.org/sage_trac/ticket/9439 > > Could

Re: [sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-07-06 Thread William Stein
On Tue, Jul 6, 2010 at 6:31 PM, Vincent D <20100.delecr...@gmail.com> wrote: > I opened a ticket [1] for hyperbolic geometry. I implemented a general > framework for the hyperbolic half plane (with point, geodesic, > polygons) and the action of SL(2,R). > > Any help or comment welcome. > > Vincent

[sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-07-06 Thread Vincent D
I opened a ticket [1] for hyperbolic geometry. I implemented a general framework for the hyperbolic half plane (with point, geodesic, polygons) and the action of SL(2,R). Any help or comment welcome. Vincent [1] http://trac.sagemath.org/sage_trac/ticket/9439 PS: I do not (want to) know any Ja

[sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-06-21 Thread Greg Laun
Okay, I'll get to work on that Greg On Jun 18, 10:39 am, Jason Grout wrote: > On 6/17/10 10:23 AM, Greg Laun wrote: > > > Ourgeometrylab has a good deal of existing code for hyperbolic > >geometry, and one of my goals this summer is to port it to Sage.   I > > spoke with Bill Goldman, who heads

[sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-06-18 Thread Jason Grout
On 6/17/10 10:23 AM, Greg Laun wrote: Our geometry lab has a good deal of existing code for hyperbolic geometry, and one of my goals this summer is to port it to Sage. I spoke with Bill Goldman, who heads the lab, and he's on board with GPLing the code and releasing it into the Sage code base i

[sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-06-17 Thread Greg Laun
Our geometry lab has a good deal of existing code for hyperbolic geometry, and one of my goals this summer is to port it to Sage. I spoke with Bill Goldman, who heads the lab, and he's on board with GPLing the code and releasing it into the Sage code base if that's something people want. Right n

[sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-05-28 Thread Vincent D
The main actual problem I see for plotting is that transformation must be relative to the ambient space. I would like to be able to see the plane as a stereographic projection of the 2-dimensional sphere (and then act with SL(2,C) as homography) but then the straight lines do not correspond any mor

[sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-05-28 Thread kcrisman
On May 27, 11:35 pm, Vincent D <20100.delecr...@gmail.com> wrote: > Hello, > > It seems that Sage doesn't yet have tools to render nice pictures of > hyperbolic geometry. I would like to be able to plot fundamental > domains and tessellations for some Fuchsian groups (in the three > standard conf

Re: [sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-05-28 Thread John Cremona
I'm sure that the army of people implementing modular forms and related stuff in Sage will welcome such graphical capabilities for drawing fundamental domains. I wonder if Helena Verrill, who wrote a very nice package for drawing fundamental domains in Magma, would be interested? I will ask her.

[sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-05-27 Thread Jason Grout
On 5/27/10 11:12 PM, Jason Grout wrote: On 5/27/10 10:35 PM, Vincent D wrote: More generally, the way sage.plot is built seems to be dedicated mostly to function graphs. Is it possible to attach geometric objects to an underlying space? meaning that if I have a Square attached to the euclidean

[sage-devel] Re: 2d hyperbolic geometry, homogeneous spaces, plot

2010-05-27 Thread Jason Grout
On 5/27/10 10:35 PM, Vincent D wrote: More generally, the way sage.plot is built seems to be dedicated mostly to function graphs. Is it possible to attach geometric objects to an underlying space? meaning that if I have a Square attached to the euclidean plane, I would like to be able to act on