Interpolate from triangle midpoint data to node data.
Synopsis
un=pdeprtni(p,t,ut)
Description
un=pdeprtni(p,t,ut)
gives linearly interpolated values at node points from the values at triangle midpoints.
The geometry of the PDE problem is given by the mesh data p and t. Details on the mesh data representation can be found in the entry on initmesh.
Let N be the dimension of the PDE system, np the number of node points, and nt the number of triangles. The components of triangle data in ut are stored as N rows of length nt. The components of the node data are stored in un as N columns of length np.
Cautionary
pdeprtni and pdeintrp are not inverse functions. The interpolation introduces some averaging.
See Also
assempde, initmesh, pdeintrp
[ Previous | Help Desk | Next ]