Re: [Matplotlib-users] Plotting contour in X-Z plane

[Benjamin R. <ben...@ou...>]

On Thu, Jan 19, 2012 at 10:30 AM, alw46 <ama...@gm...> wrote:

>
> Hi All,
>
> I have a question similar to one posted on Aug 30, 2011 titled "Plotting 2D
> contourf in Axes3D X-Z plane instead of X-Y plane".  In fact, it is the
> same
> question, and I can't seem to find a satisfactory answer anywhere.
>
> I've attached an image of what I've done in the X-Y plane for reference.
> Like the other post, I'd like to do something similar to what I've done in
> the X-Y direction, but in the X-Z and Y-Z planes.  Since I've set up a grid
> of points throughout the space, this effectively allows me to take "section
> cuts" in different directions in the space.  But I can't seem to figure out
> how to do it.  I've switched around the "z-dir", as well as replacing X and
> Y with Z in ax.contourf.  For reference, I'm using matplotlib 1.1.0.
>
> I'm trying to achieve a similar affect to Mayavi's 'image_plane_widget' to
> take volume slices, but using matplotlib.
>
> http://old.nabble.com/file/p33168965/contours_xy.png
> --
> View this message in context:
> http://old.nabble.com/Plotting-contour-in-X-Z-plane-tp33168965p33168965.html
> Sent from the matplotlib - users mailing list archive at Nabble.com.
>
>
What you want is slightly different from what contourf3d does.  Most
likely, you have a 3D matrix and what you want is to plot representative 2D
slices of that matrix with x, y, and z all being spatial coordinates.  What
contourf3d does is plots 2D data with x and y being spatial and z being the
"intensity" value, not the spatial value.

I have an idea of how to do what you want, but I need to test it a bit
first.  I will get back to you on that.

Ben Root