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3d contour lines

asked 2016-04-20 17:08:01 -0500

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Hi every one, is there a way to plot 3d contour line on a 3d function? here is my work

in progress https://cloud.sagemath.com/projects/b...

the lines are 2d, but i would like the to be on the surface. i cant find the right command

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@thetha The document you provide on SageMathCloud is not public. To make it public, in the "Files" view of your project, click the box left of the filename, click the rightmost "Share...", copy the public access link, then click the dark blue icon "Make item public". Then share with us the public access link.

slelievre gravatar imageslelievre ( 2016-04-21 04:12:23 -0500 )edit

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answered 2016-04-21 13:27:55 -0500

calc314 gravatar image

I do not think there is a specific command. Here is a potential work around:

var('x y z')
f = z==3*(1-x)^2*exp(-(x^2) - (y+1)^2) - 10*(x/5 - x^3 - y^5)*exp(-x^2-y^2)- 1/3*exp(-(x+1)^2 - y^2) 
levels=srange(-4,4,0.5)
p=Graphics()
for zlevel in levels:
    p+=implicit_plot3d(f.subs(z==zlevel), (x,-4,4),(y,-4,4),(z,zlevel-0.05,zlevel+0.05),thickness=3)
show(p)
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Asked: 2016-04-20 17:08:01 -0500

Seen: 93 times

Last updated: Apr 21 '16