#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 | edb4c5a4211e9920a95fe5e1e166a3e7a997e958
Dependencies: | Stopgaps:
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Comment (by chapoton):
After reading the doc of jmol here
http://chemapps.stolaf.edu/jmol/docs/#isosurfacesurfaceobject
--surfacedata-derivedisosurfaces
I am rather pessimistic about achieving to transmit colored surfaces to
jmol. Currently, we send `pmesh` files to jmol. Using this format, there
seems to be no way to give a color to every face (other than horrible
splitting : one `pmesh` file for every color).
One other possibility would be to use `obj` files instead. But jmol is
using the `obj` format in a strange (bad?) way : colors are coded in the
'''names''' of the groups, instead of using the material `mtl` file. To do
this, one would need to group faces according to their colors, which would
take some work to code.
This same work would probably also be necessary just to make sure that the
`obj` file output works correctly for colored surfaces.
I have not yet understood if the `json` format allows to deal eeasily with
colored surfaces.
--
Ticket URL: <http://trac.sagemath.org/ticket/12212#comment:22>
Sage <http://www.sagemath.org>
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