We do have convex hull and lines. What would be lacking for your application are discs and their intersection with polyhedra.
sage: line = Polyhedron(vertices=[(0,-1)], lines=[(1,1)]) sage: (triangle & line).vertices() (A vertex at (8/5, 3/5), A vertex at (3/2, 1/2)) On Thursday, April 24, 2014 7:02:21 AM UTC+1, Dominique Laurain wrote: > > I need same packages that Ed asked for. > Nowadays I do geometry coding myself basic functions in SAGE worksheets > (to do intersection of lines etc). > I do this using the "Rational Trigonometry philosophy" :-)..see > njwilderger youtube videos and book. > Previously I played a little with Tex tools (pst-tricks and > pst-eucl)..check about pstricks too...at that time and until now, I > was interested with tilings. > In SAGE we have the basics tools (vectors,matplotlib...) but I feel there > are not the "intermediate" tools : convex hull, rules and compass > constructions, origami tools and so on. > I can code some (for example, convex hull: I know an algorithm "paquet > cadeau" ...but everytime I feel to reinvent wheel. > What is not enough with Tex is that all is static : for example, you > cannot have the generic solution of two lines AB and CD where A,B,C,D are > 2D points with variables coordinates...because it is no more static > geometry but symbolic computations (solving equations / inequations). > >> >> -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
