plot3d displaying black graph in jupyter for both 9.0 and 9.1
 
  
 
  
 
 
 
 
 
 
    
        
        asked 4 years ago  
 
 luqiyi@gmail.com gravatar image  
 
 
 
 
    
        
        updated 4 years ago  
 
 slelievre gravatar image  
 
 
 
 
 
I installed sage 9.1, and also installed its kernel on Jupyter.
Everything other than plot3d works fine.
 
For plot3d, the behavior of 9.1 is same as 9.0, it shows a black background.
If drag the mouse on it, it shows an empty frame on white background.
 
For example:
 
sage: f = lambda x, y: exp(-x**2-y**2)
sage: W = plot3d(f, (-2, 2), (-2, 2))
sage: show(W, figsize=8)
 
I tried all the options, with or without switch viewer="threejs".
 
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Comments
What operating system? How was Sage installed? What is the exact code that gives this problem? Does the same code work on SageCell? On CoCalc?
Note: such a problem was previously reported:
slelievre gravatar imageslelievre (
    
        4 years ago
    )
Linux xxx4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
x, y, z = var('x,y,z')
f = exp(-x2-y2)
W = plot3d(f,(x,-2,2),(y,-2,2), frame=True, color='yellow', opacity=0.7, viewer='threejs')
show(W, figsize=8)
same code worked on v8.1 fine.
luqiyi@gmail.com gravatar imageluqiyi@gmail.com (
    
        4 years ago
    )
I edited the question to add a simpler example with less options to plot3d.
Is that simpler example enough to trigger the bug?
slelievre gravatar imageslelievre (
    
        4 years ago
    )
Otherwise here is the fuller example from @luqiyi's comment again, slightly polished:
sage: f = lambda x, y: exp(-x**2 - y**2)
sage: opt = {'frame': True, 'color': 'yellow', 'opacity': 0.7, 'viewer': 'threejs'}
sage: W = plot3d(f, (-2, 2), (-2, 2), **opt)
sage: show(W, figsize=8)
slelievre gravatar imageslelievre (
    
        4 years ago
    )
Can you get the plot to work with viewer=“jmol”?
paulmasson gravatar imagepaulmasson (
    
        4 years ago
    )

            
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