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Part: [skip ci] add method to approximate a B-spline curve with a given max. degree

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This commit is contained in:
wmayer
2020-10-23 00:06:31 +02:00
parent 09c72214e8
commit 4fbc693014
3 changed files with 70 additions and 8 deletions
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38
src/Mod/Part/App/BSplineCurvePyImp.cpp
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@@ -801,6 +801,7 @@ PyObject* BSplineCurvePy::approximate(PyObject *args, PyObject *kwds)
PyObject* obj;
Standard_Integer degMin=3;
Standard_Integer degMax=8;
Standard_Integer segMax=8;
char* continuity = "C2";
double tol3d = 1e-3;
char* parType = "ChordLength";
@@ -809,15 +810,46 @@ PyObject* BSplineCurvePy::approximate(PyObject *args, PyObject *kwds)
double weight2 = 0;
double weight3 = 0;
static char* kwds_interp[] = {"Points", "DegMax", "Continuity", "Tolerance", "DegMin", "ParamType", "Parameters",
"LengthWeight", "CurvatureWeight", "TorsionWeight", NULL};
// Approximate this curve with a given continuity and degree
static char* kwds_reapprox[] = {"MaxDegree", "MaxSegments", "Continuity", "Tolerance", nullptr};
if (PyArg_ParseTupleAndKeywords(args, kwds, "i|isd", kwds_reapprox,
&tol3d, &degMax, &segMax, &continuity)) {
GeomAbs_Shape c;
std::string str = continuity;
if (str == "C0")
c = GeomAbs_C0;
else if (str == "G1")
c = GeomAbs_G1;
else if (str == "C1")
c = GeomAbs_C1;
else if (str == "G2")
c = GeomAbs_G2;
else if (str == "C2")
c = GeomAbs_C2;
else if (str == "C3")
c = GeomAbs_C3;
else if (str == "CN")
c = GeomAbs_CN;
else
c = GeomAbs_C2;
bool ok = this->getGeomBSplineCurvePtr()->approximate(tol3d, segMax, degMax, c);
return Py_BuildValue("O", (ok ? Py_True : Py_False));
}
// Approximate a list of points
//
static char* kwds_interp[] = {"Points", "DegMax", "Continuity", "Tolerance", "DegMin", "ParamType", "Parameters",
"LengthWeight", "CurvatureWeight", "TorsionWeight", nullptr};
PyErr_Clear();
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|isdisOddd",kwds_interp,
&obj, &degMax,
&continuity, &tol3d, &degMin,
&parType, &par,
&weight1, &weight2, &weight3))
return 0;
return nullptr;
try {
Py::Sequence list(obj);