#12212: Colormap for implicit_plot3d and parametric_plot3d
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Reporter: niles | Owner: jason, was
Type: defect | Status: positive_review
Priority: blocker | Milestone: sage-6.5
Component: graphics | Resolution:
Keywords: colormap, plot | Merged in:
Authors: Joris | Reviewers: Frédéric Chapoton,
Vankerschaver, Frédéric Chapoton | Niles Johnson, Karl-Dieter Crisman,
Report Upstream: N/A | Jonathan Gutow
Branch: u/chapoton/12212 | Work issues:
Dependencies: #17645 | Commit:
| 36e4d8cae0037fc8442fbd20594a8e36c5b46196
| Stopgaps:
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Changes (by kcrisman):
* status: needs_review => positive_review
Comment:
Interestingly, looking at the very initial example,
{{{
sage: cmsel = [colormaps['autumn'](i) for i in sxrange(0,1,0.05)]
sage: var('x,y,z')
sage: implicit_plot3d(x^2+y^2+z^2==4, (x, -3, 3), (y, -3,3), (z, -3,3),
color=cmsel)
TypeError: 'NoneType' object is not iterable
}}}
still happens, since we need a tuple or something. But weirdly, this is
the only way to get colormaps to work with `plot3d` itself! (As opposed
to doing a "trivial" parametric plot.)
So... are we saying that we now have colormaps, after a Herculean effort,
for implicit and parametric plots, but not for "regular" plots? There is
nothing in
http://sagemath.org/doc/reference/plot3d/sage/plot/plot3d/plot3d.html that
would suggest we do.
Needless to say, I am ''not'' holding this up for that, but I have also to
say that the complete lack of documentation (William's comment in
[http://ask.sagemath.org/question/7581/use-a-colormap-for-implicit_plot3d/
Niles original question speaks to this]) for the `plot3d` side definitely
requires another ticket, and hopefully even the same syntax could work,
despite what I now agree with Niles is definitely messed-up internals on
such things.
See #17660.
--
Ticket URL: <http://trac.sagemath.org/ticket/12212#comment:163>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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