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Add Element2d.SetGeomInfo() Python API for external mesh curving #232

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Add Element2d.SetGeomInfo() Python API for external mesh curving #232

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15 changes: 15 additions & 0 deletions libsrc/meshing/python_mesh.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -469,6 +469,21 @@ DLL_HEADER void ExportNetgenMeshing(py::module &m)
li.append(py::make_tuple(pgi.trignum, pgi.u, pgi.v));
return li;
})
.def("SetGeomInfo", [](Element2d& self, int vertex_index, double u, double v, int trignum)
{
int np = self.GetNP();
if (vertex_index < 0 || vertex_index >= np)
throw NgException("vertex_index out of range [0, " + std::to_string(np-1) + "]");
auto& gi = self.GeomInfoPi(vertex_index + 1);
gi.u = u;
gi.v = v;
gi.trignum = trignum;
}, py::arg("vertex_index"), py::arg("u"), py::arg("v"), py::arg("trignum")=0,
"Set geometry info (UV parameters) for a vertex of this surface element. "
"This is useful for external meshes where geominfo is not automatically set. "
"Parameters: vertex_index (0-based index), u/v (surface parametric coordinates), "
"trignum (triangle number for STL meshing, default: 0)"
)
.def_property_readonly("vertices",
FunctionPointer([](const Element2d & self) -> py::list
{
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