Re: [Tutor] is there any Python code for spatial tessellation?
On Sun, 9 Oct 2005, Shi Mu wrote: > There are four points with coordinates: > 2,3;4,9;1,6;3,10. > How to use Python to draw one perpendicular bisector between (2,3) and (4,9); > the other perpendicular bisector between (1,6)$BOB(B(3,10); > then, makes the output like: > l1 a b c > l2 a b c > (Note: l indicates the perpendicular bisector with equation ax + by = c.) > Plus the intersection coordinates of the two perpendicular bisectors: > x,y Hi Shi Mu, I am having a hard time understanding the relationship between your first slightly scary question --- spatial tesselation --- with the second, much more basic question --- perpendicular bisectors. I'm not getting any good sense of what you know. And the core of your question has nothing to do with Python: it's more an elementary algebra/geometry homework assignment. Frankly speaking, for the kind of geometry questions you've asked so far, I believe you should already know how do that. You haven't said anything about what you've tried, or what difficulties you're running into. As far as I can tell, you haven't put in any effort into anything except for repeating a problem statement. See: http://www.catb.org/~esr/faqs/smart-questions.html#homework We're not going to do your homework. Show us what you're really having trouble with, and if it's programming related, we will try to help point things out. But other than that, you really have to do your own work. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] is there any Python code for spatial tessellation?
This is off-topic for Python: I've seen this on the FLTK mailing list, but you might find some of the links under this page useful: http://myweb.tiscali.co.uk/oaktree/nshea/tesselsphere/tesselsphere_index.html "OpenGL spherical subdivision utility. Currently employs particle and geodesic modules. GUI morphers can split Delaunay and Voronoi hulls to create new cells in the lattice. Additionally, morphers can target individual cells to split or stellate. Can be used to generate vertices for geodesic spheres, pollen, radiolaria, viruses and other polyhedra. Saves VRML 1.0 and POV-Ray inc file." Disclaimer: This isn't my field of expertise. I haven't used this software. Don't ask me any questions about it. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] is there any Python code for spatial tessellation?
Dear Danny, take a look to http://public.kitware.com/VTK/ I have seen visualization for voronoi and delaunay in that package. I have seen also good programming samples mainly in C for calculating perpedincular and so on at: http://www.graphicsgems.org/ I know it is about 10 years old, but very usable for this topic. VTK was very good and easy, ( when I downloaded the correct binaries :) ) Yours sincerely, __ János Juhász > Message: 7 > Date: Sun, 9 Oct 2005 22:22:29 -0700 > From: Shi Mu <[EMAIL PROTECTED]> > Subject: Re: [Tutor] is there any Python code for spatial > tessellation? > To: Danny Yoo <[EMAIL PROTECTED]> > Cc: Tutor > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=ISO-2022-JP > There are four points with coordinates: > 2,3;4,9;1,6;3,10. > How to use Python to draw one perpendicular bisector between (2,3) and (4,9); > the other perpendicular bisector between (1,6)?(3,10); > then, makes the output like: > l1 a b c > l2 a b c > (Note: l indicates the perpendicular bisector with equation ax + by = c.) > Plus the intersection coordinates of the two perpendicular bisectors: > x,y > > On 10/8/05, Danny Yoo <[EMAIL PROTECTED]> wrote: > > > > > > On Sat, 8 Oct 2005, Shi Mu wrote: > > > > > is there any Python code for spatial tessellation? > > > > Are you looking for code to generate voronoi diagrams? > > > >http://en.wikipedia.org/wiki/Voronoi_diagram > > > > From initial Google searches, it appears that there is a package called > > Qhull that pepole use to do Voronoi tesselations. > > > >http://www.qhull.org/ > > > > and Chris Myers has written a module around Qhull: > > > >http://www.tc.cornell.edu/~myers/PyXL/ > > > > > > Otherwise, I don't think we at Tutor can help you that much; you may want > > to ask on a more math-oriented forum. Good luck to you! > > > > > > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] is there any Python code for spatial tessellation?
There are four points with coordinates: 2,3;4,9;1,6;3,10. How to use Python to draw one perpendicular bisector between (2,3) and (4,9); the other perpendicular bisector between (1,6)和(3,10); then, makes the output like: l1 a b c l2 a b c (Note: l indicates the perpendicular bisector with equation ax + by = c.) Plus the intersection coordinates of the two perpendicular bisectors: x,y On 10/8/05, Danny Yoo <[EMAIL PROTECTED]> wrote: > > > On Sat, 8 Oct 2005, Shi Mu wrote: > > > is there any Python code for spatial tessellation? > > Are you looking for code to generate voronoi diagrams? > >http://en.wikipedia.org/wiki/Voronoi_diagram > > From initial Google searches, it appears that there is a package called > Qhull that pepole use to do Voronoi tesselations. > >http://www.qhull.org/ > > and Chris Myers has written a module around Qhull: > >http://www.tc.cornell.edu/~myers/PyXL/ > > > Otherwise, I don't think we at Tutor can help you that much; you may want > to ask on a more math-oriented forum. Good luck to you! > > > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] is there any Python code for spatial tessellation?
On Sat, 8 Oct 2005, Shi Mu wrote: > is there any Python code for spatial tessellation? Are you looking for code to generate voronoi diagrams? http://en.wikipedia.org/wiki/Voronoi_diagram >From initial Google searches, it appears that there is a package called Qhull that pepole use to do Voronoi tesselations. http://www.qhull.org/ and Chris Myers has written a module around Qhull: http://www.tc.cornell.edu/~myers/PyXL/ Otherwise, I don't think we at Tutor can help you that much; you may want to ask on a more math-oriented forum. Good luck to you! ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] is there any Python code for spatial tessellation?
is there any Python code for spatial tessellation? thanks a lot! ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
