Hi there Sagers:
I'm trying to use a cartographic projection $f:\mathbb{R}^2\to S^2\subset\mathbb{R}^3$ to map Sage 2D graphics objects onto the sphere $S^2$. Projecting points is easy, but how can i project polygons or function plots? Do i somehow grab the graphics object points and use point3d and $f$?
Thanks for your attention. Alex
I don't think there's a way to do this just from the 2D graphics objects. Probably the most straightforward resolution would be to modify the way you're producing the 2D objects, to have them output 3D coordinates directly.
There has been some related work implementing Cylindrical and Spherical coordinates for 3D function plots, which might give you some other ideas too (although they were a little counterintuitive to me at first).
Asked: 2011-07-21 00:48:57 +0200
Seen: 1,378 times
Last updated: Jul 22 '11
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