#12212: Colormap for implicit_plot3d and parametric_plot3d
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Reporter: niles | Owner: jason, was
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.3
Component: graphics | Resolution:
Keywords: colormap, plot | Merged in:
Authors: Joris | Reviewers:
Vankerschaver | Work issues:
Report Upstream: N/A | Commit:
Branch: u/chapoton/12212 | a6e0d47d681d64a5d0c21cceb1a1f012fba29645
Dependencies: | Stopgaps:
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Comment (by niles):
I've played with this a little bit now, and it seems reasonably fast in my
simple tests.
I realized that using an arbitrary scalar function (e.g. curvature) for
the colormap only works for implicit surfaces, not parametrized surfaces.
If I understand correctly, this is a fundamental limitation of this
approach, because it applies colors only *after* the surface is
constructed and therefore only has access to coordinates in 3-space, not
the parametrization that was used to produce them.
This is still more useful than what currently exists (i.e., nothing!), but
perhaps it can be integrated into the surface construction methods in a
way that works for both implicit and parametrized surfaces.
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Ticket URL: <http://trac.sagemath.org/ticket/12212#comment:15>
Sage <http://www.sagemath.org>
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