Opened 8 years ago
Last modified 4 years ago
#9957 new defect
Parametric Surfaces don't load well
Reported by: | kcrisman | Owned by: | jason, was |
---|---|---|---|
Priority: | minor | Milestone: | sage-6.4 |
Component: | graphics | Keywords: | |
Cc: | Merged in: | ||
Authors: | Reviewers: | ||
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description (last modified by )
See this ask.sagemath.org discussion for background.
sage: var('x,y') (x, y) sage: f(x,y)=x^2+y^2 sage: p=plot3d(f,(-5,5),(-5,5)) sage: p # works fine sage: p.save('test.sobj') sage: q = load('test.sobj') sage: q ERROR: An unexpected error occurred while tokenizing input <snip> NotImplementedError: You must override the get_grid method.
Change History (7)
comment:1 Changed 8 years ago by
comment:2 Changed 7 years ago by
- Description modified (diff)
comment:3 Changed 6 years ago by
- Milestone changed from sage-5.11 to sage-5.12
comment:4 Changed 5 years ago by
- Milestone changed from sage-6.1 to sage-6.2
comment:5 Changed 5 years ago by
- Milestone changed from sage-6.2 to sage-6.3
comment:6 Changed 5 years ago by
- Milestone changed from sage-6.3 to sage-6.4
comment:7 Changed 4 years ago by
Pickling is simply not implemented for this class:
sage: p.__reduce_ex__(2) (<function copy_reg.__newobj__>, (sage.plot.plot3d.parametric_surface.ParametricSurface,), None, None, None)
as you can see, no construction parameters are provided at all. So this object just gets pickled as an empty ParametricSurface
object.
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This can be traced down to the fact that in
parametric_surface.pyx
which is called from
triangulate
when you try to view the plot. For some reason therender_grid
attribute isn't set inq
, but inp
it is. I don't know how to access these attributes, unfortunately...