We want to make this tree by using fractal.
sage: T = sum(Cone(exp(-n/5), 4/3*exp(-n/5),
....: color=(0, .5, 0)).translate(0, 0, -3*exp(-n/5))
....: for n in [1 .. 7])
sage: T += Cone(1/8, 1, color='brown').translate(0, 0, -3)
sage: T.show(aspect_ratio=1, frame=False)We find this code. but error we want to get 3D tree graph.
Not quite clear what you are asking. It would seem you defined
your own Cone which returns a 3d graphics object.
In that case the error you get might be from sum,
and this modified code might work for you:
sage: brown = Cone(1/8, 1, color='brown').translate(0, 0, -3)
sage: green = (Cone(exp(-n/5), 4/3*exp(-n/5),
....: color=(0, .5, 0)).translate(0, 0, -3*exp(-n/5))
....: for n in [1 .. 7])
sage: T = sum(green, brown)
sage: T.show(aspect_ratio=1, frame=False)Asked: 5 years ago
Seen: 822 times
Last updated: Jun 08 '19
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
Welcome to Ask Sage! Thank you for your question!
I edited the post, so that the code is somehow readable. (Simply by marking it, followed by Control+K on the marked block.) It is hard to understand what is wanted, where is the fractal, the tree, and which picture should be constructed in 3D. Please use words to describe in detail what is wanted. If some piece of code works with "a single
Cone", then mention it, and based on it explain what is wanted.Please provide enough code to reproduce the problem in a fresh Sage session.
Please indicate what error you get. I get an error from
Cone.Maybe you have another definition of
Coneand you get an error fromsum?Or do you get an error from
show?