C++ Vector3d::Set方法代码示例

PyObject* MatrixPy::transform(PyObject * args)
{
    Base::Vector3d vec;
    Matrix4D mat;
    PyObject *pcVecObj,*pcMatObj;

    if (PyArg_ParseTuple(args, "O!O!: a transform point (Vector) and a transform matrix (Matrix) is needed",
        &(Base::VectorPy::Type), &pcVecObj, &(MatrixPy::Type), &pcMatObj) ) {   // convert args: Python->C
        Base::VectorPy  *pcObject = static_cast<Base::VectorPy*>(pcVecObj);
        Base::Vector3d* val = pcObject->getVectorPtr();
        vec.Set(val->x,val->y,val->z);
        mat = *(static_cast<MatrixPy*>(pcMatObj)->getMatrixPtr());
        // clears the error from the first PyArg_ParseTuple()6
        PyErr_Clear();
    }
    else
        return NULL;                                 // NULL triggers exception

    PY_TRY {
        getMatrixPtr()->transform(vec,mat);
    }
    PY_CATCH;

    Py_Return;
}

PyObject* MatrixPy::scale(PyObject * args)
{
    double x,y,z;
    Base::Vector3d vec;
    PyObject *pcVecObj;

    if (PyArg_ParseTuple(args, "ddd", &x,&y,&z)) {   // convert args: Python->C
        vec.x = x;
        vec.y = y;
        vec.z = z;
    }
    else if (PyArg_ParseTuple(args, "O!:three floats or a vector is needed", 
        &PyTuple_Type, &pcVecObj)) {
        vec = getVectorFromTuple<double>(pcVecObj);
        // clears the error from the first PyArg_ParseTuple()6
        PyErr_Clear();
    }
    else if (PyArg_ParseTuple(args, "O!:three floats or a vector is needed", &(Base::VectorPy::Type), &pcVecObj)) {
        // convert args: Python->C
        Base::VectorPy  *pcObject = static_cast<Base::VectorPy*>(pcVecObj);
        Base::Vector3d* val = pcObject->getVectorPtr();
        vec.Set(val->x,val->y,val->z);
        // clears the error from the first PyArg_ParseTuple()6
        PyErr_Clear();
    }
    else
        return NULL;

    PY_TRY {
        getMatrixPtr()->scale(vec);
    }
    PY_CATCH;

    Py_Return;
}

Base::Matrix4D MeshObject::getEigenSystem(Base::Vector3d& v) const
{
    MeshCore::MeshEigensystem cMeshEval(_kernel);
    cMeshEval.Evaluate();
    Base::Vector3f uvw = cMeshEval.GetBoundings();
    v.Set(uvw.x, uvw.y, uvw.z);
    return cMeshEval.Transform();
}

bool Extrusion::fetchAxisLink(const App::PropertyLinkSub& axisLink, Base::Vector3d& basepoint, Base::Vector3d& dir)
{
    if (!axisLink.getValue())
        return false;

    if (!axisLink.getValue()->isDerivedFrom(Part::Feature::getClassTypeId()))
        throw Base::TypeError("AxisLink has no OCC shape");

    Part::Feature* linked = static_cast<Part::Feature*>(axisLink.getValue());

    TopoDS_Shape axEdge;
    if (axisLink.getSubValues().size() > 0  &&  axisLink.getSubValues()[0].length() > 0){
        axEdge = linked->Shape.getShape().getSubShape(axisLink.getSubValues()[0].c_str());
    } else {
        axEdge = linked->Shape.getValue();
    }

    if (axEdge.IsNull())
        throw Base::ValueError("DirLink shape is null");
    if (axEdge.ShapeType() != TopAbs_EDGE)
        throw Base::TypeError("DirLink shape is not an edge");

    BRepAdaptor_Curve crv(TopoDS::Edge(axEdge));
    gp_Pnt startpoint;
    gp_Pnt endpoint;
    if (crv.GetType() == GeomAbs_Line){
        startpoint = crv.Value(crv.FirstParameter());
        endpoint = crv.Value(crv.LastParameter());
        if (axEdge.Orientation() == TopAbs_REVERSED)
            std::swap(startpoint, endpoint);
    } else {
        throw Base::TypeError("DirLink edge is not a line.");
    }
    basepoint.Set(startpoint.X(), startpoint.Y(), startpoint.Z());
    gp_Vec vec = gp_Vec(startpoint, endpoint);
    dir.Set(vec.X(), vec.Y(), vec.Z());
    return true;
}

PyObject*  MeshPointPy::move(PyObject *args)
{
    if (!getMeshPointPtr()->isBound())
        PyErr_SetString(Base::BaseExceptionFreeCADError, "This object is not bounded to a mesh, so no topological operation is possible!");

    double  x=0.0,y=0.0,z=0.0;
    PyObject *object;
    Base::Vector3d vec;
    if (PyArg_ParseTuple(args, "ddd", &x,&y,&z)) {
        vec.Set(x,y,z);
    } 
    else if (PyArg_ParseTuple(args,"O!",&(Base::VectorPy::Type), &object)) {
        PyErr_Clear(); // set by PyArg_ParseTuple()
        // Note: must be static_cast, not reinterpret_cast
        vec = *(static_cast<Base::VectorPy*>(object)->getVectorPtr());
    }
    else {
        return 0;
    }

    getMeshPointPtr()->Mesh->movePoint(getMeshPointPtr()->Index,vec);
    Py_Return;
}