mphquad2tri

Convert plot data quad mesh into simplex mesh.

pdout = mphquad2tri(pdin) converts the plot data stored in the structure pdin into the structure pdout using a simplex mesh.

The input and output structures, respectively pdin and pdout, are structures with fields p, d, t, rgb and expr.

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The field p is a 2xN array containing the vertex coordinates.

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The field saved is a Nx1 array containing the data value at the vertices.

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The field t is an array containing the indices to columns in p of a quad mesh for pdin and of a simplex mesh for pdout, each column in t representing respectively a quad and a simplex.

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The field rgb is a Nx3 array containing the color model data as RGB values. This field is optional.

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The field expr is a string containing the description of the data. This field is optional.

Example

Generate 3D surf data

[x,y] = meshgrid(-0.1:0.2:1.1,-0.4:0.2:0.4);

z = cumsum(0.1*randn(size(x)));

Create plotdata in a quad mesh:

pd = mphsurf(x,y,z);

Convert the plot data into triangle mesh:

pd = mphquad2tri(pd);

mphplot(pd)