I don't believe we have anything like this yet, but it seems it could be (relatively) easily built on top of the new and very cool 3d implicit plotting functionality.
- Robert On May 15, 2009, at 1:42 AM, Jurgis Pralgauskis wrote: > > Hello, > > stereometry needs imagination or more experience, > to understand cross-sections and so on > > I found some interactive example > http://www.learner.org/courses/learningmath/geometry/session9/ > part_c/index.html > > I'd like to have sage interact for solid construction and > cutting_plane parameters > and then view it around via jmol :) > > in school this is mostly needed for parallelepiped or pyramid solids: > > mysolid = SomeSolid(apex_points_3D) > # and I can get, mysolid.surface_planes() > #so I'd expect to have algorithms which detect > > intersection = Intersection(mysolid, cutting_plane) > # we get some 2D polygon, > # probably first analytically find intersection.lines > # and then solve the > # self.segmets = self.endpoints (self.lines , self.mysolid) > # for conic would be some different approach ... > > intersection.fill() # or draw() would draw some lines or color to > show it > > > what does sage have already, and what would need to be hacked? > > Thanks in advance :) > > ps.: just for reference > http://en.wikipedia.org/wiki/Cross_section_(geometry) > http://en.wikipedia.org/wiki/Conic_section > > -- > Jurgis Pralgauskis > Don't worry, be happy and make things better ;) > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-edu?hl=en -~----------~----~----~----~------~----~------~--~---
