# Mesh Parametric Surface

I have a surface that can be described by f(u,v), and I would like to generate a mesh of this object (so that I can later put it in Blender/Paraview). Any guidelines on how to do it in Julia?

There are multiple ways of doing it. If you are doing a lot of geometry processing try:

Maybe you can instantiate specific vertices in the Cartesian product of the parameter space (u,v) and connect with quadrangles?

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I can’t seem to find quadrangles in the documentation? I was reading this library, but I can’t figure out how to do this from the documentation. (Also I’ve never had to manually construct a mesh)

Try to read the tests of the package as they are quite exhaustive.

I understand that you can simply instantiate vertices with your parametrization, for instance you have a function:

``````f(u,v) = Point3(x(u,v), y(u,v), z(u,v))
``````

So you can create a lattice:

``````vertices = [f(u,v) for u in us for v in vs]
``````

and connect a few of them, for example with a grid topology:

``````topology = GridTopology(length(us)-1, length(vs)-1)
``````

The simple mesh is then:

``````mesh = SimpleMesh(vertices, topology)
``````
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