// private AttributeStreamOfInt32 m_orphanVertices;
private void _beforeRemoveVertex(int vertex, bool bChangePathFirst)
{
int vertexlistIndex = m_shape.GetUserIndex(vertex, m_userIndexSortedIndexToVertex);
if (m_nextVertexToProcess == vertexlistIndex)
{
m_nextVertexToProcess = m_sortedVertices.GetNext(m_nextVertexToProcess);
}
if (m_firstCoincidentVertex == vertexlistIndex)
{
m_firstCoincidentVertex = m_sortedVertices.GetNext(m_firstCoincidentVertex);
}
m_sortedVertices.DeleteElement(m_sortedVerticesListIndex, vertexlistIndex);
_removeAngleSortInfo(vertex);
if (bChangePathFirst)
{
int path = m_shape.GetPathFromVertex(vertex);
if (path != -1)
{
int first = m_shape.GetFirstVertex(path);
if (first == vertex)
{
int next = m_shape.GetNextVertex(vertex);
if (next != vertex)
{
int p = m_shape.GetPathFromVertex(next);
if (p == path)
{
m_shape.SetFirstVertex_(path, next);
return;
}
else
{
int prev = m_shape.GetPrevVertex(vertex);
if (prev != vertex)
{
p = m_shape.GetPathFromVertex(prev);
if (p == path)
{
m_shape.SetFirstVertex_(path, prev);
return;
}
}
}
}
m_shape.SetFirstVertex_(path, -1);
m_shape.SetLastVertex_(path, -1);
}
}
}
}
internal virtual bool InsertEdge_(int vertex, int reused_node)
{
com.epl.geometry.Point2D pt_1 = new com.epl.geometry.Point2D();
com.epl.geometry.Point2D pt_2 = new com.epl.geometry.Point2D();
m_shape.GetXY(vertex, pt_1);
int next = m_shape.GetNextVertex(vertex);
m_shape.GetXY(next, pt_2);
bool b_res = false;
if (pt_1.y < pt_2.y)
{
b_res = true;
int edge = m_edges.NewEdge(vertex);
int aetNode;
if (reused_node == -1)
{
aetNode = m_AET.AddElement(edge, -1);
}
else
{
aetNode = reused_node;
m_AET.SetElement(aetNode, edge);
}
int node = m_shape.GetUserIndex(next, m_node_1_user_index);
if (node == -1)
{
m_shape.SetUserIndex(next, m_node_1_user_index, aetNode);
}
else
{
m_shape.SetUserIndex(next, m_node_2_user_index, aetNode);
}
int path = m_shape.GetPathFromVertex(vertex);
if (m_shape.GetPathUserIndex(path, m_path_orientation_index) == 0)
{
m_unknown_nodes.Add(aetNode);
}
}
int prev = m_shape.GetPrevVertex(vertex);
m_shape.GetXY(prev, pt_2);
if (pt_1.y < pt_2.y)
{
b_res = true;
int edge = m_edges.NewEdge(prev);
int aetNode;
if (reused_node == -1)
{
aetNode = m_AET.AddElement(edge, -1);
}
else
{
aetNode = reused_node;
m_AET.SetElement(aetNode, edge);
}
int node = m_shape.GetUserIndex(prev, m_node_1_user_index);
if (node == -1)
{
m_shape.SetUserIndex(prev, m_node_1_user_index, aetNode);
}
else
{
m_shape.SetUserIndex(prev, m_node_2_user_index, aetNode);
}
int path = m_shape.GetPathFromVertex(vertex);
if (m_shape.GetPathUserIndex(path, m_path_orientation_index) == 0)
{
m_unknown_nodes.Add(aetNode);
}
}
return(b_res);
}
internal int GetPath(int index)
{
return(m_shape.GetPathFromVertex(GetEnd1(index)));
}