Hello,
I was making some tries with 3D.
I don't succeed to make cube correctly:
Here is my code:
c=cube((0,0,0),size=2,opacity=0.1,color='red')
c+=point((2/3,2/3,0),color='green',size=10)
c+=cube(center=(2/3,2/3,0),size=1/3,opacity=0.8)
show(c)
I draw a point with coord (2/3,2/3,0)
Then I draw a cube centered on this point with size 1/3
When I display with JMol, the point is outside the cube...
Is it a bug ? Perhaps I've missed something with the instruction
cube()
It seems that sage multiplies by size all the coordinates of the cube,
even the center, not only the length.
Try size=1, size=10 and size=0.1. The center of the cube changes.
F.
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