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C++ TopoDS_Face::Reverse方法代码示例

本文整理汇总了C++中TopoDS_Face::Reverse方法的典型用法代码示例。如果您正苦于以下问题:C++ TopoDS_Face::Reverse方法的具体用法?C++ TopoDS_Face::Reverse怎么用?C++ TopoDS_Face::Reverse使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在TopoDS_Face的用法示例。


在下文中一共展示了TopoDS_Face::Reverse方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: face_it

bool IfcGeom::Kernel::convert(const IfcSchema::IfcTriangulatedFaceSet* l, TopoDS_Shape& shape) {
    IfcSchema::IfcCartesianPointList3D* point_list = l->Coordinates();
    const std::vector< std::vector<double> > coordinates = point_list->CoordList();
    std::vector<gp_Pnt> points;
    points.reserve(coordinates.size());
    for (std::vector< std::vector<double> >::const_iterator it = coordinates.begin(); it != coordinates.end(); ++it) {
        const std::vector<double>& coords = *it;
        if (coords.size() != 3) {
            Logger::Message(Logger::LOG_ERROR, "Invalid dimensions encountered on Coordinates", l->entity);
            return false;
        }
        points.push_back(gp_Pnt(coords[0] * getValue(GV_LENGTH_UNIT),
                                coords[1] * getValue(GV_LENGTH_UNIT),
                                coords[2] * getValue(GV_LENGTH_UNIT)));
    }

    std::vector< std::vector<int> > indices = l->CoordIndex();

    std::vector<TopoDS_Face> faces;
    faces.reserve(indices.size());

    for(std::vector< std::vector<int> >::const_iterator it = indices.begin(); it != indices.end(); ++ it) {
        const std::vector<int>& tri = *it;
        if (tri.size() != 3) {
            Logger::Message(Logger::LOG_ERROR, "Invalid dimensions encountered on CoordIndex", l->entity);
            return false;
        }

        const int min_index = *std::min_element(tri.begin(), tri.end());
        const int max_index = *std::max_element(tri.begin(), tri.end());

        if (min_index < 1 || max_index > points.size()) {
            Logger::Message(Logger::LOG_ERROR, "Contents of CoordIndex out of bounds", l->entity);
            return false;
        }

        const gp_Pnt& a = points[tri[0] - 1]; // account for zero- vs
        const gp_Pnt& b = points[tri[1] - 1]; // one-based indices in
        const gp_Pnt& c = points[tri[2] - 1]; // c++ and express

        TopoDS_Wire wire = BRepBuilderAPI_MakePolygon(a, b, c, true).Wire();
        TopoDS_Face face = BRepBuilderAPI_MakeFace(wire).Face();

        TopoDS_Iterator face_it(face, false);
        const TopoDS_Wire& w = TopoDS::Wire(face_it.Value());
        const bool reversed = w.Orientation() == TopAbs_REVERSED;
        if (reversed) {
            face.Reverse();
        }

        if (face_area(face) > getValue(GV_MINIMAL_FACE_AREA)) {
            faces.push_back(face);
        }
    }

    if (faces.empty()) return false;

    const unsigned int num_faces = indices.size();
    bool valid_shell = false;

    if (faces.size() < getValue(GV_MAX_FACES_TO_SEW)) {
        BRepOffsetAPI_Sewing builder;
        builder.SetTolerance(getValue(GV_POINT_EQUALITY_TOLERANCE));
        builder.SetMaxTolerance(getValue(GV_POINT_EQUALITY_TOLERANCE));
        builder.SetMinTolerance(getValue(GV_POINT_EQUALITY_TOLERANCE));

        for (std::vector<TopoDS_Face>::const_iterator it = faces.begin(); it != faces.end(); ++it) {
            builder.Add(*it);
        }

        try {
            builder.Perform();
            shape = builder.SewedShape();
            valid_shell = BRepCheck_Analyzer(shape).IsValid();
        } catch(...) {}

        if (valid_shell) {
            try {
                ShapeFix_Solid solid;
                solid.LimitTolerance(getValue(GV_POINT_EQUALITY_TOLERANCE));
                TopoDS_Solid solid_shape = solid.SolidFromShell(TopoDS::Shell(shape));
                if (!solid_shape.IsNull()) {
                    try {
                        BRepClass3d_SolidClassifier classifier(solid_shape);
                        shape = solid_shape;
                    } catch (...) {}
                }
            } catch(...) {}
        } else {
            Logger::Message(Logger::LOG_WARNING, "Failed to sew faceset:", l->entity);
        }
    }

    if (!valid_shell) {
        TopoDS_Compound compound;
        BRep_Builder builder;
        builder.MakeCompound(compound);

        for (std::vector<TopoDS_Face>::const_iterator it = faces.begin(); it != faces.end(); ++it) {
            builder.Add(compound, *it);
//.........这里部分代码省略.........
开发者ID:jf---,项目名称:IfcOpenShell,代码行数:101,代码来源:IfcGeomShapes.cpp


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