public ChordalAxis2D(Face2D terminal, EdgeConnection2D connection)
{
sleeveChords = new List <Chord2D>();
junctionChords = new List <Chord2D>();
terminalChords = new List <Chord2D>();
MakeChordalAxis(terminal, connection);
}
/// <summary>
/// 辺による面の接続関係を作成する。
/// </summary>
/// <returns>The edge connection.</returns>
/// <param name="faces">Faces.</param>
EdgeConnection2D MakeEdgeConnection(List <Face2D> faces)
{
var edgeConnection = new EdgeConnection2D();
for (var i = 0; i < faces.Count; ++i)
{
edgeConnection.AddFace(faces[i]);
}
return(edgeConnection);
}
/// <summary>
/// 終端の面と接続情報から軸を作成する
/// </summary>
/// <param name="terminal">Terminal.</param>
/// <param name="connection">Connection.</param>
void MakeChordalAxis(Face2D terminal, EdgeConnection2D connection)
{
if (terminal.category != Face2D.Category.Terminal)
{
throw new System.ArgumentException("最初の面はterminalでなければなりません。");
}
var origin = new Chord2D();
origin.face = terminal;
for (int i = 0, j = terminal.edges.Length - 1; i < terminal.edges.Length; j = i++)
{
if (!terminal.edges[i].isExterior)
{
origin.src = terminal.vertices[j];
origin.dstEdge = terminal.edges[i];
origin.dst = origin.dstEdge.mid;
break;
}
}
origin.pair = origin;
this.terminalChords.Add(origin);
this.origin = origin;
Face2D neighbor;
Stack <Chord2D> exploring = new Stack <Chord2D>();
List <Chord2D> temporary = new List <Chord2D>();
exploring.Push(origin);
while (exploring.Count > 0)
{
var cur = exploring.Pop();
if (cur == null)
{
continue;
}
if (!connection.TryGetNeighbor(cur.dstEdge, cur.face, out neighbor))
{
throw new System.ArgumentException("接続情報が構築されていません");
}
temporary.Clear();
switch (neighbor.category)
{
case Face2D.Category.Sleeve:
MakeSleeveChord(cur, neighbor, ref temporary);
break;
case Face2D.Category.Junction:
MakeJunctionChord(cur, neighbor, ref temporary);
break;
case Face2D.Category.Terminal:
MakeTerminalChord(cur, neighbor, ref temporary);
break;
}
for (int i = 0; i < temporary.Count; ++i)
{
exploring.Push(temporary[i]);
}
}
}