/// <summary>
/// Insert an edge unless it is already in the list.
/// </summary>
/// <param name="e"></param>
public void Add(Edge e)
{
_edges.Add(e);
var oca = new OrientedCoordinateArray(e.Coordinates);
_ocaMap.Add(oca, e);
//_index.Insert(e.Envelope, e);
}
///// <summary>
/////
///// </summary>
///// <param name="oca"></param>
/*/// <param name="segString"></param>*/
/// <returns></returns>
private ISegmentString FindMatching(OrientedCoordinateArray oca /*, ISegmentString segString*/)
{
ISegmentString ret;
if (_ocaMap.TryGetValue(oca, out ret))
{
return(ret);
}
return(null);
}
/// <summary>
/// Dissolve the given <see cref="ISegmentString" />.
/// </summary>
/// <param name="segString"></param>
public void Dissolve(ISegmentString segString)
{
var oca = new OrientedCoordinateArray(segString.Coordinates);
var existing = FindMatching(oca /*, segString*/);
if (existing == null)
{
Add(oca, segString);
}
else
{
if (_merger != null)
{
bool isSameOrientation = CoordinateArrays.Equals(existing.Coordinates, segString.Coordinates);
_merger.Merge(existing, segString, isSameOrientation);
}
}
}
/// <summary>
/// Dissolve the given <see cref="ISegmentString" />.
/// </summary>
/// <param name="segString"></param>
public void Dissolve(ISegmentString segString)
{
OrientedCoordinateArray oca = new OrientedCoordinateArray(segString.Coordinates);
ISegmentString existing = FindMatching(oca /*, segString*/);
if (existing == null)
Add(oca, segString);
else
{
if (_merger != null)
{
bool isSameOrientation = CoordinateArrays.Equals(existing.Coordinates, segString.Coordinates);
_merger.Merge(existing, segString, isSameOrientation);
}
}
}
/// <summary>
///
/// </summary>
/// <param name="oca"></param>
/// <param name="segString"></param>
private void Add(OrientedCoordinateArray oca, ISegmentString segString)
{
_ocaMap.Add(oca, segString);
}
///// <summary>
/////
///// </summary>
///// <param name="oca"></param>
/*/// <param name="segString"></param>*/
/// <returns></returns>
private ISegmentString FindMatching(OrientedCoordinateArray oca /*, ISegmentString segString*/)
{
ISegmentString ret;
if (_ocaMap.TryGetValue(oca, out ret))
return ret;
return null;
}
/// <summary>
///
/// </summary>
/// <param name="oca"></param>
/// <param name="segString"></param>
private void Add(OrientedCoordinateArray oca, ISegmentString segString)
{
_ocaMap.Add(oca, segString);
}
/// <summary>
/// Compares two <see cref="OrientedCoordinateArray" />s for their relative order.
/// </summary>
/// <param name="o1"></param>
/// <returns>
/// -1 this one is smaller;<br/>
/// 0 the two objects are equal;<br/>
/// 1 this one is greater.
/// </returns>
public int CompareTo(object o1)
{
OrientedCoordinateArray oca = (OrientedCoordinateArray)o1;
return(CompareOriented(_pts, _orientation, oca._pts, oca._orientation));
}
/// <summary>
/// If there is an edge equal to e already in the list, return it.
/// Otherwise return null.
/// </summary>
/// <param name="e"></param>
/// <returns>
/// equal edge, if there is one already in the list,
/// null otherwise.
/// </returns>
public Edge FindEqualEdge(Edge e)
{
var oca = new OrientedCoordinateArray(e.Coordinates);
// will return null if no edge matches
Edge matchEdge;
_ocaMap.TryGetValue(oca, out matchEdge);
return matchEdge;
}