Comments (1)
Hello @kaipengliuHIT, the example nurbs_patch_ex1.cpp
currently works only in 3D. The sample runs use the 3D mesh data/beam-hex-nurbs.mesh
. There is an error message in DiffusionIntegrator::AssemblePatchMatrix_reducedQuadrature
if the dimension is not 3.
This example demonstrates patch-based integration rules, as opposed to the usual element-based integration used in MFEM. There are computational savings with patch-based integration, more so in 3D than 2D. This is why 3D is the main target for this example. With some further implementation, a 2D example could be supported, and it should be straightforward to do so by following the 3D example.
For more background and comments on this example, see the merged PR 3088.
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