public static void ShowEdgeRelationshipAroundCpt(CPoint cpt)
{
CEdge IncidentCEdge = cpt.IncidentCEdge;
CEdge currentcedge = IncidentCEdge;
Console.WriteLine("-------------------------------start Around Cpt------------------------------");
do
{
CDCEL.ShowEdgeRelationship(currentcedge);
currentcedge = currentcedge.GetLargerAxisAngleCEdge();
} while (IncidentCEdge.dblAxisAngle != currentcedge.dblAxisAngle);
Console.WriteLine("-------------------------------end Around Cpt------------------------------");
}
/// <summary>
///
/// </summary>
/// <param name="prevcedge"></param>
/// <param name="insertedcedge"></param>
/// <param name="newcedge">newcedge should have a twin edge</param>
/// <remarks>prevcedge, insertedcedge, and nextcedge should have the same start</remarks>
public static void InsertCEdgeBySmaller(CEdge SmallerAxisAngleCEdge, CEdge newcedge)
{
var LargerAxisAngleCEdge = SmallerAxisAngleCEdge.GetLargerAxisAngleCEdge();
//maintain the IncidentCEdge information
//newcedge.dblAxisAngle may just larger than all the Costarted edges,
//because SmallerAxisAngleCEdge may be the edge with largest AxisAngle
if (LargerAxisAngleCEdge.isIncidentCEdgeForCpt == true && newcedge.dblAxisAngle < LargerAxisAngleCEdge.dblAxisAngle)
{
LargerAxisAngleCEdge.isIncidentCEdgeForCpt = false;
newcedge.isIncidentCEdgeForCpt = true;
LargerAxisAngleCEdge.FrCpt.IncidentCEdge = newcedge;
}
InsertCEdgeInbetween(SmallerAxisAngleCEdge, newcedge, LargerAxisAngleCEdge);
}