public CMesh(AMesh lMesh)
{
V = new CVertex[lMesh.V.Length];
for (int i = 0; i < lMesh.V.Length; i++)
{
V[i] = new CVertex(lMesh.V[i].Position);
}
E = new CEdge[lMesh.E.Length];
for (int i = 0; i < lMesh.E.Length; i++)
{
int[] lVerts = new int[2] {
lMesh.E[i].Vertices[0], lMesh.E[i].Vertices[1]
};
int[] lFaces = new int[2] {
lMesh.E[i].Faces[0], lMesh.E[i].Faces[1]
};
E[i] = new CEdge(lVerts, lFaces);
}
F = new CFace[lMesh.F.Length];
for (int i = 0; i < lMesh.F.Length; i++)
{
int[] lEdges = new int[lMesh.F[i].Edges.Length];
for (int j = 0; j < lMesh.F[i].Edges.Length; j++)
{
lEdges[j] = lMesh.F[i].Edges[j];
}
F[i] = new CFace(lEdges, lMesh.F[i].Plane);
}
}
private int[] GetOrderedVertices(CFace lFace)
{
List <int> lEdges = new List <int>(lFace.Edges.Length);
for (int j = 0; j < lFace.Edges.Length; j++)
{
lEdges.Add(lFace.Edges[j]);
}
for (int i0 = 0, i1 = 1, lChoice = 1; i1 < lEdges.Count - 1; i0 = i1, i1++)
{
int lCurrent = E[lEdges[i0]].Vertices[lChoice];
for (int j = i1; j < lEdges.Count; j++)
{
//CEdge lEdge = E[lEdges[j]];
if (E[lEdges[j]].Vertices[0] == lCurrent)
{
int lTemp = lEdges[i1];
lEdges[i1] = lEdges[j];
lEdges[j] = lTemp;
lChoice = 1;
break;
}
if (E[lEdges[j]].Vertices[1] == lCurrent)
{
int lTemp = lEdges[i1];
lEdges[i1] = lEdges[j];
lEdges[j] = lTemp;
lChoice = 0;
break;
}
}
}
List <int> lVerts = new List <int>(lEdges.Count + 1);
lVerts.Add(E[lEdges[0]].Vertices[0]);
lVerts.Add(E[lEdges[0]].Vertices[1]);
for (int i = 1; i < lEdges.Count; i++)
{
if (E[lEdges[i]].Vertices[0] == lVerts[i])
{
lVerts.Add(E[lEdges[i]].Vertices[1]);
}
else
{
lVerts.Add(E[lEdges[i]].Vertices[0]);
}
}
return(lVerts.ToArray());
}
public void AppendFace(CFace lNewFace)
{
CFace[] lTemp = new CFace[F.Length + 1];
for (int i = 0; i < F.Length; i++)
{
lTemp[i] = F[i];
}
lTemp[F.Length] = lNewFace;
F = lTemp;
}
private static void ProcessFaces(ref CMesh lCMesh, Plane lPlane)
{
CFace lNewFace = new CFace();
lNewFace.Plane = lPlane;
lNewFace.Visible = true;
int lNewFaceIndex = lCMesh.F.Length;
for (int i = 0; i < lCMesh.F.Length; i++)
{
CFace lF = lCMesh.F[i];
if (lF.Visible)
{
for (int j = 0; j < lF.Edges.Length; j++)
{
int lEdgeIndex = lF.Edges[j];
lCMesh.V[lCMesh.E[lEdgeIndex].Vertices[0]].Occurs = 0;
lCMesh.V[lCMesh.E[lEdgeIndex].Vertices[1]].Occurs = 0;
}
int lStart, lEnd;
if (GetOpenPolyline(lCMesh, lF, out lStart, out lEnd))
{
CEdge lNewEdge = new CEdge();
int lNewEdgeIndex = lCMesh.E.Length;
lNewEdge.Vertices = new int[2];
lNewEdge.Vertices[0] = lStart;
lNewEdge.Vertices[1] = lEnd;
lNewEdge.AddFace(i);
lNewEdge.AddFace(lNewFaceIndex);
lNewEdge.Visible = true;
lF.AddEdge(lNewEdgeIndex);
lNewFace.AddEdge(lNewEdgeIndex);
lCMesh.AppendEdge(lNewEdge);
}
lCMesh.F[i] = lF;
}
}
lCMesh.AppendFace(lNewFace);
}
private static bool GetOpenPolyline(CMesh lCMesh, CFace lF, out int lStart, out int lEnd)
{
for (int i = 0; i < lF.Edges.Length; i++)
{
int lEdgeIndex = lF.Edges[i];
lCMesh.V[lCMesh.E[lEdgeIndex].Vertices[0]].Occurs++;
lCMesh.V[lCMesh.E[lEdgeIndex].Vertices[1]].Occurs++;
}
lStart = -1;
lEnd = -1;
for (int i = 0; i < lF.Edges.Length; i++)
{
int lEdgeIndex = lF.Edges[i];
int lI0 = lCMesh.E[lEdgeIndex].Vertices[0];
int lI1 = lCMesh.E[lEdgeIndex].Vertices[1];
if (lCMesh.V[lI0].Occurs == 1)
{
if (lStart == -1)
{
lStart = lI0;
}
else if (lEnd == -1)
{
lEnd = lI0;
}
}
if (lCMesh.V[lI1].Occurs == 1)
{
if (lStart == -1)
{
lStart = lI1;
}
else if (lEnd == -1)
{
lEnd = lI1;
}
}
}
return(lStart != -1);
}
private static void ProcessEdges(ref CMesh lCMesh, Plane lPlane)
{
for (int i = 0; i < lCMesh.E.Length; i++)
{
CEdge lE = lCMesh.E[i];
if (lE.Visible)
{
float lD0 = lCMesh.V[lE.Vertices[0]].Distance;
float lD1 = lCMesh.V[lE.Vertices[1]].Distance;
if (lD0 <= 0f && lD1 <= 0f)
{
for (int j = 0; j < lE.Faces.Length; j++)
{
CFace lF = lCMesh.F[lE.Faces[j]];
lF.RemoveEdge(i);
if (lF.Edges.Length == 0)
{
lF.Visible = false;
}
lCMesh.F[lE.Faces[j]] = lF;
}
lE.Visible = false;
lCMesh.E[i] = lE;
continue;
}
if (lD0 >= 0f && lD1 >= 0f)
{
lCMesh.E[i] = lE;
continue;
}
float lT = lD0 / (lD0 - lD1);
Vector3 lDelta0 = (1f - lT) * lCMesh.V[lE.Vertices[0]].Position;
Vector3 lDelta1 = lT * lCMesh.V[lE.Vertices[1]].Position;
Vector3 lIntersect = lDelta0 + lDelta1;
int lIndex = lCMesh.V.Length;
CVertex lNewVertex = new CVertex(lIntersect);
lCMesh.AppendVertex(lNewVertex);
if (lD0 > 0)
{
lE.Vertices[1] = lIndex;
}
else
{
lE.Vertices[0] = lIndex;
}
lCMesh.E[i] = lE;
}
}
}
