### Contouring triangular meshes

If your data is represented by a triangular mesh, that is, if you have three one-dimensional arrays which represent the X/Y coordinate points and the data value at each point, then you can use NCL to contour it.The examples below are finite element grids. For more information on other non-uniform grids that NCL can handle, see the document "Non-uniform grids that NCL can contour."