public static HeModel ToHeModel(CadMesh src)
{
HeModel m = new HeModel();
m.VertexStore = src.VertexStore;
Dictionary <uint, HalfEdge> map = new Dictionary <uint, HalfEdge>();
for (int fi = 0; fi < src.FaceStore.Count; fi++)
{
CadFace f = src.FaceStore[fi];
int vi = f.VList[0];
HalfEdge head = m.CreateHalfEdge(vi);
HalfEdge current_he = head;
HeFace face = m.CreateFace(head);
int faceIndex = m.FaceStore.Add(face);
current_he.Face = faceIndex;
HalfEdge next_he;
for (int pi = 1; pi < f.VList.Count; pi++)
{
vi = f.VList[pi];
next_he = m.CreateHalfEdge(vi);
current_he.Next = next_he;
next_he.Prev = current_he;
next_he.Face = faceIndex;
current_he = next_he;
}
head.Prev = current_he;
current_he.Next = head;
HalfEdge c = head;
for (; ;)
{
HeConnector.SetHalfEdgePair(c, map);
map[HeConnector.GetHeKey(c)] = c;
c = c.Next;
if (c == head)
{
break;
}
}
}
m.RecreateNormals();
return(m);
}
// 三角形の追加
// 左右回り方を統一して追加するようにする
public void AddTriangle(int v0, int v1, int v2)
{
HalfEdge he0 = mHeModel.CreateHalfEdge(v0);
HalfEdge he1 = mHeModel.CreateHalfEdge(v1);
HalfEdge he2 = mHeModel.CreateHalfEdge(v2);
he0.Next = he1;
he0.Prev = he2;
he1.Next = he2;
he1.Prev = he0;
he2.Next = he0;
he2.Prev = he1;
// 法線の設定
Vector3d normal = CadMath.Normal(
mHeModel.VertexStore[v0].vector,
mHeModel.VertexStore[v1].vector,
mHeModel.VertexStore[v2].vector);
// Faceの設定
HeFace face = mHeModel.CreateFace(he0);
if (!normal.IsInvalid())
{
face.Normal = mHeModel.NormalStore.Add(normal);
he0.Normal = mHeModel.NormalStore.Add(normal);
he1.Normal = mHeModel.NormalStore.Add(normal);
he2.Normal = mHeModel.NormalStore.Add(normal);
}
int faceIndex = mHeModel.FaceStore.Add(face);
he0.Face = faceIndex;
he1.Face = faceIndex;
he2.Face = faceIndex;
// Pairの設定
HeConnector.SetHalfEdgePair(he0, HeMap);
HeMap[HeConnector.GetHeKey(he0)] = he0;
HeConnector.SetHalfEdgePair(he1, HeMap);
HeMap[HeConnector.GetHeKey(he1)] = he1;
HeConnector.SetHalfEdgePair(he2, HeMap);
HeMap[HeConnector.GetHeKey(he2)] = he2;
}