Hi everyone,
I generated a bunch of 3d plots to produce an animation and I saved them
both as png and sobj files, because I wanted to keep the objects for
later manipulations. However, when loading back an sobj file, I find
them to be unusable. More precisely,
p=plot3d(lambda x1,y1: h(t0,x1,y1), (-5,5),(-5,5),plot_points=100); #t0 fixed
and h(t,x,y) a procedure
p.save('bump003.sobj');
p.save('bump003.png');
a = load('bump003.sobj');
a.show();
returns the error
NotImplementedError: You must override the get_grid method.
while the png image files get correctly generated.
There is no mention of this kind of error in the Plot3D doc, except for
parametric surfaces
http://www.sagemath.org/doc/reference/sage/plot/plot3d/parametric_surface.html
where it is mentioned that get_grid should indeed be overriden for
subclasses of parametric_surface.
Any idea why this error shows up only after importing the object ?
Many thanks, Benhuard
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