Hi Michael,
> On a Gridded2DSet I am plotting a scalar value (density) as well as
> streamlines for a 2D vector field (velocity). Right now I have the density
> mapped to the ZAxis and my streamlines lie in the z=0 plane. My goal is to
> have the streamlines lie on top of the density surface. I came up with
>
> (( x , y ) -> ( density )) -> ( u , v )
>
> which clearly violates the FunctionType constructor. Are there any easy
> ways to accomplish this? Thanks in advance.
Instead, try the MathType:
((x, y) -> (u, v, density))
Note that visad/examples/Test72.java does something similar
which works fine.
Good luck,
Bill