private static List <ModelData.EdgeIndex> GenerateEndgeList(List <ModelData.FaceIndex> faceList, ref ProgressHelper progressHelper)
{
var hashCollection = new Dictionary <ModelData.EdgeIndex, ModelData.EdgeIndex>();
for (var index = 0; index < faceList.Count; ++index)
{
ModelData.FaceIndex face = faceList[index];
ModelData.AppendEdgeToHash_Helper(ref hashCollection, index, face.P1, face.P2);
ModelData.AppendEdgeToHash_Helper(ref hashCollection, index, face.P2, face.P3);
ModelData.AppendEdgeToHash_Helper(ref hashCollection, index, face.P1, face.P3);
progressHelper.Process(index);
}
return(hashCollection.Values.ToList <ModelData.EdgeIndex>());
}
private static List <ModelData.VertexIndex> GenerateFaceLink_Helper(List <M3D.Model.Utils.Vector3> newVerticesList, List <ModelData.FaceIndex> newFaceList, ProgressHelper progressHelper = null)
{
var vertexIndexList = new List <ModelData.VertexIndex>(newFaceList.Count);
foreach (M3D.Model.Utils.Vector3 newVertices in newVerticesList)
{
vertexIndexList.Add(new ModelData.VertexIndex(new List <int>()));
}
for (var index = 0; index < newFaceList.Count; ++index)
{
ModelData.FaceIndex newFace = newFaceList[index];
vertexIndexList[newFace.P1].Faces.Add(index);
vertexIndexList[newFace.P2].Faces.Add(index);
vertexIndexList[newFace.P3].Faces.Add(index);
progressHelper?.Process(index);
}
return(vertexIndexList);
}
private static bool HashVertexesAndFaces_Helper(LinkedList <M3D.Model.Utils.Vector3> verticies, ref ProgressHelper progressHelper, out List <M3D.Model.Utils.Vector3> newVerticesList, out List <ModelData.FaceIndex> newFaceList)
{
newVerticesList = null;
newFaceList = null;
var num1 = 0;
var num2 = 0;
var source = new Dictionary <M3D.Model.Utils.Vector3, int>();
var faceIndexSet = new HashSet <ModelData.FaceIndex>();
var flag = ModelData.VerticiesFlipped(verticies);
while (verticies.First != null)
{
M3D.Model.Utils.Vector3 vector3_1 = verticies.First.Value;
ModelData.AssertIfNANOrNULL(vector3_1);
verticies.RemoveFirst();
M3D.Model.Utils.Vector3 vector3_2 = verticies.First.Value;
ModelData.AssertIfNANOrNULL(vector3_2);
verticies.RemoveFirst();
M3D.Model.Utils.Vector3 vector3_3 = verticies.First.Value;
ModelData.AssertIfNANOrNULL(vector3_3);
verticies.RemoveFirst();
if (flag)
{
M3D.Model.Utils.Vector3 vector3_4 = vector3_1;
vector3_1 = vector3_3;
vector3_3 = vector3_4;
}
M3D.Model.Utils.Vector3 normal = ModelData.CalcNormal(vector3_1, vector3_2, vector3_3);
if (!double.IsNaN(normal.X) && !double.IsNaN(normal.Y) && !double.IsNaN(normal.Z))
{
int[] faceIndicies = new int[3];
M3D.Model.Utils.Vector3[] vector3Array = new M3D.Model.Utils.Vector3[3]
{
vector3_1,
vector3_2,
vector3_3
};
for (var index = 0; index < 3; ++index)
{
M3D.Model.Utils.Vector3 key = vector3Array[index];
int num3;
if (source.ContainsKey(key))
{
num3 = source[key];
}
else
{
source.Add(key, num1);
num3 = num1++;
}
faceIndicies[index] = num3;
}
for (var index1 = 0; index1 < 3; ++index1)
{
for (var index2 = index1 + 1; index2 < 3; ++index2)
{
if (faceIndicies[index1] == faceIndicies[index2])
{
return(false);
}
}
}
var faceIndex = new FaceIndex(faceIndicies, normal);
if (!faceIndexSet.Contains(faceIndex))
{
faceIndexSet.Add(faceIndex);
}
progressHelper.Process(num2 += 3);
}
}
IEnumerable <M3D.Model.Utils.Vector3> collection = source.OrderBy <KeyValuePair <M3D.Model.Utils.Vector3, int>, int>(pair => pair.Value).Select <KeyValuePair <M3D.Model.Utils.Vector3, int>, M3D.Model.Utils.Vector3>(pair => pair.Key);
newVerticesList = new List <M3D.Model.Utils.Vector3>(collection);
source.Clear();
newFaceList = new List <ModelData.FaceIndex>(faceIndexSet);
faceIndexSet.Clear();
return(true);
}