public void ResetToVertex(int vertexIndex, int _pathIndex)
{
if (m_currentPathIndex >= 0 && m_currentPathIndex < m_parent.GetPathCount())
{
// check if we
// are in
// the
// current
// path
int start = _getPathBegin();
if (vertexIndex >= start && vertexIndex < m_parent.GetPathEnd(m_currentPathIndex))
{
m_currentSegmentIndex = -1;
m_nextSegmentIndex = vertexIndex - start;
return;
}
}
int path_index;
if (_pathIndex >= 0 && _pathIndex < m_parent.GetPathCount() && vertexIndex >= m_parent.GetPathStart(_pathIndex) && vertexIndex < m_parent.GetPathEnd(_pathIndex))
{
path_index = _pathIndex;
}
else
{
path_index = m_parent.GetPathIndexFromPointIndex(vertexIndex);
}
m_nextPathIndex = path_index + 1;
m_currentPathIndex = path_index;
m_currentSegmentIndex = -1;
m_nextSegmentIndex = vertexIndex - m_parent.GetPathStart(path_index);
m_segmentCount = _getSegmentCount(path_index);
m_pathBegin = m_parent.GetPathStart(m_currentPathIndex);
}
public SegmentIteratorImpl(com.epl.geometry.MultiPathImpl parent, int pointIndex)
{
if (pointIndex < 0 || pointIndex >= parent.GetPointCount())
{
throw new System.IndexOutOfRangeException();
}
m_currentSegmentIndex = -1;
int path = parent.GetPathIndexFromPointIndex(pointIndex);
m_nextSegmentIndex = pointIndex - parent.GetPathStart(path);
m_nextPathIndex = path + 1;
m_currentPathIndex = path;
m_parent = parent;
m_segmentCount = _getSegmentCount(m_currentPathIndex);
m_bCirculator = false;
m_currentSegment = null;
m_pathBegin = m_parent.GetPathStart(m_currentPathIndex);
m_dummyPoint = new com.epl.geometry.Point2D();
}
/// <summary>Returns the path index from the point index.</summary>
/// <remarks>Returns the path index from the point index. This is O(log N) operation.</remarks>
/// <param name="pointIndex">The index of the point.</param>
/// <returns>The index of the path.</returns>
public virtual int GetPathIndexFromPointIndex(int pointIndex)
{
return(m_impl.GetPathIndexFromPointIndex(pointIndex));
}