// structure used in MakePolyLine() to define a cutting plane
struct PolySegment
{
- // point 1: if node1ID2 > 0, then the point is in the middle of a face edge defined
- // by two nodes, else it is at node1ID1
+ // a point is defined as follows:
+ // ( node*ID1 > 0 && node*ID2 > 0 ) ==> point is in the middle of an edge defined by two nodes
+ // ( node*ID1 > 0 && node*ID2 <=0 ) ==> point is at node*ID1
+ // else ==> point is at xyz*
+
+ // point 1
long node1ID1;
long node1ID2;
+ PointStruct xyz1;
- // point 2: if node2ID2 > 0, then the point is in the middle of a face edge defined
- // by two nodes, else it is at node2ID1
+ // point 2
long node2ID1;
long node2ID2;
+ PointStruct xyz2;
- DirStruct vector; // vector on the plane; to use a default plane set vector = (0,0,0)
+ // vector on the plane; to use a default plane set vector = (0,0,0)
+ DirStruct vector;
};
typedef sequence<PolySegment> ListOfPolySegments;
/*!
* \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.
+ * the initial triangle 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.
