public void swapTriangles()
{
for (int i = 0; i < faces.Count; i++)
{
ObjFace f = faces[i];
int k = f.getNumVerts() - 1;
for (int j = 0; j < k; j++, k--)
{
ObjFaceVertex tmp = faceVerts[f.getFirstVert() + j];
faceVerts[f.getFirstVert() + j] = faceVerts[f.getFirstVert() + k];
faceVerts[f.getFirstVert() + k] = tmp;
}
}
}
public void iterateXYZTriangles(IXYZTrianglesIterator l)
{
for (int i = 0; i < faces.Count; i++)
{
ObjFace f = faces[i];
for (int j = 2; j < f.getNumVerts(); j++)
{
int i0 = f.getFirstVert() + 0;
int i1 = f.getFirstVert() + j - 1;
int i2 = f.getFirstVert() + j;
ObjFaceVertex v0 = faceVerts[i0];
ObjFaceVertex v1 = faceVerts[i1];
ObjFaceVertex v2 = faceVerts[i2];
Vec3 xyz0 = xyzs[v0.getXYZIndex() - 1];
Vec3 xyz1 = xyzs[v1.getXYZIndex() - 1];
Vec3 xyz2 = xyzs[v2.getXYZIndex() - 1];
l.addXYZTriangle(xyz0, xyz1, xyz2);
}
}
}
public bool saveObjModel(string fileName)
{
System.IO.StreamWriter file = new System.IO.StreamWriter(fileName);
file.WriteLine("# obj file exported by objFileExplorer");
for (int i = 0; i < xyzs.Count; i++)
{
file.WriteLine("v " + xyzs[i].ToString().Replace(',', '.'));
}
for (int i = 0; i < texCoords.Count; i++)
{
file.WriteLine("vt " + texCoords[i].ToString().Replace(',', '.'));
}
for (int i = 0; i < normals.Count; i++)
{
file.WriteLine("vn " + normals[i].ToString().Replace(',', '.'));
}
for (int i = 0; i < objects.Count; i++)
{
ObjObject obj = objects[i];
file.WriteLine("o " + obj.getName());
for (int j = 0; j < obj.getNumFaces(); j++)
{
ObjFace face = faces[obj.getFirstFace() + j];
file.Write("f");
for (int k = 0; k < face.getNumVerts(); k++)
{
int faceVertIndex = k + face.getFirstVert();
ObjFaceVertex faceVertex = faceVerts[faceVertIndex];
string faceVertString = " " + faceVertex.ToString();
file.Write(faceVertString);
}
file.WriteLine();
}
}
for (int i = 0; i < groups.Count; i++)
{
ObjGroup g = groups[i];
file.WriteLine("g " + g.getName());
for (int j = 0; j < g.getNumFaces(); j++)
{
ObjFace face = faces[g.getFirstFace() + j];
file.Write("f");
for (int k = 0; k < face.getNumVerts(); k++)
{
int faceVertIndex = k + face.getFirstVert();
ObjFaceVertex faceVertex = faceVerts[faceVertIndex];
string faceVertString = " " + faceVertex.ToString();
file.Write(faceVertString);
}
file.WriteLine();
}
}
if (groups.Count == 0 && objects.Count == 0)
{
for (int j = 0; j < faces.Count; j++)
{
ObjFace face = faces[j];
file.Write("f");
for (int k = 0; k < face.getNumVerts(); k++)
{
int faceVertIndex = k + face.getFirstVert();
ObjFaceVertex faceVertex = faceVerts[faceVertIndex];
string faceVertString = " " + faceVertex.ToString();
file.Write(faceVertString);
}
file.WriteLine();
}
}
file.Close();
return(false);
}