Hello everybody,

I have a problem transferring from 3D data to a 2D representation.

I used mayavi to define a cut plane through a volume data set and got the xyz

coordinates for the points on the plane and the data at each point.

Now I would like to make a contour plot of that data in matplotlib.

My first try was rotating the normal of the cut plane parallel to the z-axes and leaving the data unchanged.

Unfortunately, this changed the number of grid points, so I do not know how to fit these both sets together.

Is there a convenient way how to sample these 3d data and put it on a 2d grid?

Thank you very much in advance, Chris

I have attached an example that was provided by a fellow user recently that might be of use. I am seeing how to either modify it to include it into mplot3d or to at least include it in the gallary examples.

I hope it is helpful to you!

Ben Root

cntr3d.py (1.5 KB)

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On Tue, Jan 31, 2012 at 12:19 AM, Christoph Piefke <anmeldung@…3946…> wrote:

Hello everybody,

I have a problem transferring from 3D data to a 2D representation.

I used mayavi to define a cut plane through a volume data set and got

the xyz

coordinates for the points on the plane and the data at each point.

Now I would like to make a contour plot of that data in matplotlib.

My first try was rotating the normal of the cut plane parallel to the

z-axes and leaving the data unchanged.

Unfortunately, this changed the number of grid points, so I do not know

how to fit these both sets together.

Is there a convenient way how to sample these 3d data and put it on a 2d

grid?

Thank you very much in advance, Chris