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Parameter transformation

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This commit is contained in:
wmayer
2013-11-14 11:27:07 +01:00
parent b3738a2fce
commit babcf2f027
2 changed files with 27 additions and 32 deletions
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34
src/Mod/Part/App/TopoShapeEdgePyImp.cpp
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@@ -166,23 +166,31 @@ int TopoShapeEdgePy::PyInit(PyObject* args, PyObject* /*kwd*/)
// ====== Methods ======================================================================
double TopoShapeEdgePy::getNormalizedParameter(double u) const
PyObject* TopoShapeEdgePy::getParameterByLength(PyObject *args)
{
#if 0
double u;
if (!PyArg_ParseTuple(args, "d",&u))
return 0;
const TopoDS_Edge& e = TopoDS::Edge(getTopoShapePtr()->_Shape);
BRepAdaptor_Curve adapt(e);
// normalizing parameter space to length
// transform value of [0,Length] to [First,Last]
double first = BRepLProp_CurveTool::FirstParameter(adapt);
double last = BRepLProp_CurveTool::LastParameter(adapt);
if (!Precision::IsInfinite(first) && !Precision::IsInfinite(last)) {
double length = GCPnts_AbscissaPoint::Length(adapt);
if (u < 0 || u > length) {
PyErr_SetString(PyExc_ValueError, "value out of range");
return 0;
}
double stretch = (last - first) / length;
u = first + u*stretch;
}
#endif
return u;
return PyFloat_FromDouble(u);
}
PyObject* TopoShapeEdgePy::valueAt(PyObject *args)
@@ -194,8 +202,6 @@ PyObject* TopoShapeEdgePy::valueAt(PyObject *args)
const TopoDS_Edge& e = TopoDS::Edge(getTopoShapePtr()->_Shape);
BRepAdaptor_Curve adapt(e);
u = getNormalizedParameter(u);
// Check now the orientation of the edge to make
// sure that we get the right wanted point!
BRepLProp_CLProps prop(adapt,u,0,Precision::Confusion());
@@ -241,8 +247,6 @@ PyObject* TopoShapeEdgePy::tangentAt(PyObject *args)
const TopoDS_Edge& e = TopoDS::Edge(getTopoShapePtr()->_Shape);
BRepAdaptor_Curve adapt(e);
u = getNormalizedParameter(u);
BRepLProp_CLProps prop(adapt,u,2,Precision::Confusion());
if (prop.IsTangentDefined()) {
gp_Dir dir;
@@ -264,8 +268,6 @@ PyObject* TopoShapeEdgePy::normalAt(PyObject *args)
const TopoDS_Edge& e = TopoDS::Edge(getTopoShapePtr()->_Shape);
BRepAdaptor_Curve adapt(e);
u = getNormalizedParameter(u);
try {
BRepLProp_CLProps prop(adapt,u,2,Precision::Confusion());
gp_Dir V ;
@@ -288,8 +290,6 @@ PyObject* TopoShapeEdgePy::curvatureAt(PyObject *args)
const TopoDS_Edge& e = TopoDS::Edge(getTopoShapePtr()->_Shape);
BRepAdaptor_Curve adapt(e);
u = getNormalizedParameter(u);
try {
BRepLProp_CLProps prop(adapt,u,2,Precision::Confusion());
double C = prop.Curvature();
@@ -311,8 +311,6 @@ PyObject* TopoShapeEdgePy::centerOfCurvatureAt(PyObject *args)
const TopoDS_Edge& e = TopoDS::Edge(getTopoShapePtr()->_Shape);
BRepAdaptor_Curve adapt(e);
u = getNormalizedParameter(u);
try {
BRepLProp_CLProps prop(adapt,u,2,Precision::Confusion());
gp_Pnt V ;
@@ -335,8 +333,6 @@ PyObject* TopoShapeEdgePy::derivative1At(PyObject *args)
const TopoDS_Edge& e = TopoDS::Edge(getTopoShapePtr()->_Shape);
BRepAdaptor_Curve adapt(e);
u = getNormalizedParameter(u);
try {
BRepLProp_CLProps prop(adapt,u,1,Precision::Confusion());
const gp_Vec& V = prop.D1();
@@ -358,8 +354,6 @@ PyObject* TopoShapeEdgePy::derivative2At(PyObject *args)
const TopoDS_Edge& e = TopoDS::Edge(getTopoShapePtr()->_Shape);
BRepAdaptor_Curve adapt(e);
u = getNormalizedParameter(u);
try {
BRepLProp_CLProps prop(adapt,u,2,Precision::Confusion());
const gp_Vec& V = prop.D2();
@@ -381,8 +375,6 @@ PyObject* TopoShapeEdgePy::derivative3At(PyObject *args)
const TopoDS_Edge& e = TopoDS::Edge(getTopoShapePtr()->_Shape);
BRepAdaptor_Curve adapt(e);
u = getNormalizedParameter(u);
try {
BRepLProp_CLProps prop(adapt,u,3,Precision::Confusion());
const gp_Vec& V = prop.D3();