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sage.plot.plot3d.shapes2.Line() does not work in the cloud

asked 2015-09-23 20:49:15 +0200

Jeremy Martin gravatar image

The following code (straight from does not work in the SageMath Cloud, at least not for me:

from sage.plot.plot3d.shapes2 import Line
Line([(i*math.sin(i), i*math.cos(i), i/3) for i in range(30)], arrow_head=True)

The result is a long error message ending with "TypeError: 0 is not JSON serializable". Am I doing something wrong?

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I guess I can just use line3d() instead.... but maybe this error indicates something else is going on.

Jeremy Martin gravatar imageJeremy Martin ( 2015-09-24 18:35:08 +0200 )edit

I think this is a SMC 3d renderer bug, as this works fine in the normal Sage notebook.

kcrisman gravatar imagekcrisman ( 2015-09-25 09:23:41 +0200 )edit
William Stein gravatar imageWilliam Stein ( 2015-09-25 17:42:25 +0200 )edit

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answered 2015-09-24 02:31:59 +0200

fidbc gravatar image

You don't seem to be doing anything wrong.

Another option to get similar output is to use the line3d function.

line3d([(i*math.sin(i), i*math.cos(i), i/3) for i in range(30)], arrow_head=True)
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Asked: 2015-09-23 20:49:15 +0200

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Last updated: Sep 24 '15