interptet - Script command – Ansys Optics

FDTD MODE DGTD CHARGE HEAT FEEM INTERCONNECT

Interpolates a 3D dataset from a tetrahedral grid to another tetrahedral or a rectilinear grid. The data can be complex.

This function is typically used for resampling data evaluated originally in a finite element mesh (monitor data from CHARGE, for example) to a new rectilinear grid.

[[Note:]] Since 2020a R7, [[interptet]] can interpolate a data set from a tetrahedral to a rectangular grid or to a list of points. The data can be vectorial.

Syntax

Description

out = interptet(tet, vtx, u, xi, yi, zi, extrap_val);

out = interptet(tet, vtx, u, xi, yi, zi, extrap_val, "rectilinear");

Does a tetrahedral to rectilinear interpolation of a function and outputs a PxQxRxS array of interpolated values, f(xi,yi,zi,p).

u is existing data of the finite element mesh (NxS)
xi, yi and zi are arrays with length P, Q and R, respectively. They specify the points where u is to be sampled on the rectilinear mesh, in the x-direction, y-direction and z-direction
tet is the connectivity array, Mx4, containing row entries that index the 4 vertices of M tetrahedra. Taken from the simulation region
vtx is a matrix with the vertices of the tetrahedral mesh, Nx3, containing row entries of (x,y,z) pairs. Taken from the simulation region
extrap_val(optional): if an interpolation point is outside of the finite element mesh, the point will be assigned this value (default is Inf)

out = interptet(tet, vtx, u, xi, yi, zi, extrap_val, "unstructured");

Does a tetrahedral to point cloud interpolation of a function and outputs a PxS array of interpolated values.

u is existing data of the finite element mesh (NxS)
xi, yi and zi are arrays with length P. They specify the P points where u is to be sampled on
tet is the connectivity array, Mx4, containing row entries that index the 4 vertices of M tetrahedra. Taken from the simulation region
vtx is a matrix with the vertices of the tetrahedral mesh, Nx3, containing row entries of (x,y,z) pairs. Taken from the simulation region
extrap_val(optional): if an interpolation point is outside of the finite element mesh, the point will be assigned this value (default is Inf)

Example

See the example for the interptri script function.

See Also

quadtet, quadtri, interptri

interptet - Script command

Associated files

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