[Matplotlib-users] unstructured contour plots

[Daniel W. <dan...@ni...>]

Is it currently possible to make contour plots using unstructured data 
with matplotlib?

By unstructured data I mean the typical data from a 2D finite element 
simulation that
uses an unstructured polygonal mesh.

As far as I can tell the "pylab.contourf(X, Y, Z)" command requires 
structured data with X, Y
and Z each having to be 2D gridded arrays.

I have previously used the gist package to do this type of plotting 
using the
"gist.plfp(Z, X, Y, F)"  command. This command allows plotting of 
polygonal data
specified by arrays Z, X, Y, F.

     - Z is the data value, shape(Z) = (NPolygons)
     - X is the vertex x coordinates, shape(X) = (NPolygons, NVertices).
     - Y is vertex y coordinates, shape(Y) = (NPolygons, NVertices)
     - F is the number of vertices for each cell, shape(F) = (NPolygons)

Is there a similar functionality in matplotlib?

Thanks

-------------------------------------
Daniel Wheeler