public Edge2D(Vertex2D a, Vertex2D b, Vertex2D mid, bool isExterior)
{
this.a = a;
this.b = b;
this.mid = mid;
this.isExterior = isExterior;
}
public Face2D(Vertex2D a, Vertex2D b, Vertex2D c, Vertex2D g)
{
this.vertices = new Vertex2D[3];
this.vertices[0] = a;
this.vertices[1] = b;
this.vertices[2] = c;
this.g = g;
this.edges = new Edge2D[3];
}
/// <summary>
/// 距離を確認し付近にすでに存在しない場合に追加する。
/// </summary>
/// <param name="p">P.</param>
public Vertex2D CheckAndAdd(Vector2 p)
{
var nearest = FindNear(p);
if (nearest != null)
{
return(nearest);
}
var v = new Vertex2D(p);
v.index = vertices.Count;
vertices.Add(v);
return(v);
}
/// <summary>
/// 重複がないかを確認して追加する
/// </summary>
/// <param name="v">V.</param>
/// <param name="e">E.</param>
void CheckAndAdd(Vertex2D v, Vertex2D e)
{
if (!connection.ContainsKey(v))
{
connection.Add(v, new List <Vertex2D> {
e
});
}
else
{
if (!connection[v].Contains(e))
{
connection[v].Add(e);
}
}
}
/// <summary>
/// 入力された座標の近くに頂点が存在する場合はそれを返す。
/// </summary>
/// <returns>The near.</returns>
/// <param name="p">P.</param>
/// <param name="range">Range.</param>
public Vertex2D FindNear(Vector2 p, float range = 0.01f)
{
if (vertices.Count <= 0)
{
return(null);
}
float d = range;
Vertex2D nearest = null;
for (var i = 0; i < vertices.Count; ++i)
{
var v = vertices[i];
var td = (v.p - p).magnitude;
if (td < d)
{
d = td;
nearest = v;
}
}
return(nearest);
}
/// <summary>
/// 内側に広がる面を作成する
/// </summary>
/// <returns>The surface interior.</returns>
/// <param name="dic">Dic.</param>
/// <param name="a">The alpha component.</param>
/// <param name="b">The blue component.</param>
/// <param name="m">M.</param>
Surface MakeSurface_Interior(Dictionary <ElevatedEdge, ElevatedEdge> dic, Vertex2D a, Vertex2D b, Vertex2D m, bool isReverse = false)
{
var d = UtilsMath.Cross(a.p - m.p, m.p - b.p);
if (!isReverse ? d >= 0 : d < 0)
{
var temp = a;
a = b;
b = temp;
}
ElevatedEdge ma = new ElevatedEdge(m, a);
ElevatedEdge mb = new ElevatedEdge(m, b);
CheckAndAdd(dic, ma);
CheckAndAdd(dic, mb);
Surface surf = new Surface(Surface.Divergent.Interior, dic[ma], dic[mb]);
return(surf);
}
public ElevatedEdge(Vertex2D foot, Vertex2D top)
{
this.foot = foot;
this.top = top;
}
public Vertex2D GetOtherVertex(Vertex2D v)
{
return(v == a ? b : a);
}
public bool HasVertex(Vertex2D v)
{
return(v.GetHashCode() == a.GetHashCode() || v.GetHashCode() == b.GetHashCode());
}
public Fan2D(Vertex2D baseVertex, List <Vertex2D> fanVertices, List <Vector2> contour, Face2D baseFace)
{
this.baseVertex = baseVertex;
this.fanVertices = AlignFanVertices(fanVertices, contour);
this.baseFace = baseFace;
}