class SMDS_MeshElement;
class SMDS_MeshFace;
class SMDS_MeshNode;
+class SMESHDS_Group;
class SMESHDS_Mesh;
class SMESHDS_SubMesh;
+class SMESH_ElementSearcher;
class SMESH_Group;
class SMESH_Mesh;
class SMESH_MesherHelper;
bool toAddExistingBondary = false,
bool aroundElements = false);
+
+ // structure used in MakePolyLine() to define a cutting plane
+ struct PolySegment
+ {
+ // 2 points: if myNode2 != 0, then the point is the middle of a face edge defined
+ // by two nodes, else it is at myNode1
+ const SMDS_MeshNode* myNode1[2];
+ const SMDS_MeshNode* myNode2[2];
+
+ gp_Vec myVector; // vector on the plane; to use a default plane set vector = (0,0,0)
+
+ // point to return coordinates of a middle of the two points, projected to mesh
+ gp_Pnt myMidProjPoint;
+ };
+ typedef std::vector<PolySegment> TListOfPolySegments;
+
+ /*!
+ * \brief Create a polyline consisting of 1D mesh elements each lying on a 2D element of
+ * the initial mesh. Positions of new nodes are found by cutting the mesh by the
+ * plane passing through pairs of points specified by each PolySegment structure.
+ * If there are several paths connecting a pair of points, the shortest path is
+ * selected by the module. Position of the cutting plane is defined by the two
+ * points and an optional vector lying on the plane specified by a PolySegment.
+ * By default the vector is defined by Mesh module as following. A middle point
+ * of the two given points is computed. The middle point is projected to the mesh.
+ * The vector goes from the middle point to the projection point. In case of planar
+ * mesh, the vector is normal to the mesh.
+ * \param [inout] segments - PolySegment's defining positions of cutting planes.
+ * Return the used vector and position of the middle point.
+ * \param [in] group - an optional group where created mesh segments will
+ * be added.
+ */
+ void MakePolyLine( TListOfPolySegments& segments,
+ SMESHDS_Group* group=0,
+ SMESH_ElementSearcher* searcher=0);
+
private:
/*!
