it's possible to update nodes value in a mesh that was created with pde toolbox?

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Gabriel Pereira
Gabriel Pereira 2018-11-22
评论： Gabriel Pereira 2018-11-30
Hello,
i'm trying to update my mesh nodes values with the result of a simulation. What i like to do is something like this:
results = solvepde(model);
u = results.NodalSolutions;
mesh.Nodes = mesh.Nodes + u;
i know that this last line is wrong, but exist a function that do this?

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Ravi Kumar
Ravi Kumar 2018-11-27
Hello Gabriel,
You can achieve this using geometryFromMesh function. Following your example:
results = solvepde(model);
u = results.NodalSolutions;
oldNodes = model.Mesh.Nodes;
newNodes = oldNodes + u';
elements = model.Mesh.Elements;
% Delete the geometry. As you will create new geometry with deformed mesh.
model.Geometry = []
newMesh = geometryFromMesh(model,newNodes,elements);
Regards,
Ravi
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Ravi Kumar
Ravi Kumar 2018-11-30
Hi Gabriel,
Use the two LHS arguments to retain the same mesh as defined by newNodes and elements.
[geom, msh] = geometryFromMesh(model,newNodes,elements);
Regards,
Ravi

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