public static void SetModelTriangles(Model3D myModel, List <Triangle> listTriangle)
{
Part p = new Part();
p.Triangles = listTriangle;
myModel.Parts.Add(p);
myModel.CalculateBoundingBox(true);
//TimeCalc.ShowLastTimeSpan("Bounding Box");
}
/// <summary>
///
/// </summary>
/// <param name="fileOBJ"></param>
/// <param name="myNewModel"></param>
private static void readOBJfile(string fileOBJ, Model3D myNewModel)
{
string line = string.Empty;
int indexInModel = -1;
try
{
using (StreamReader streamReader = new StreamReader(fileOBJ))
{
Part p = new Part();
Vertex vertex = new Vertex();
myNewModel.Parts = new List <Part>();
while (!streamReader.EndOfStream)
{
line = streamReader.ReadLine().Trim();
while (line.EndsWith("\\"))
{
line = line.Substring(0, line.Length - 1) + streamReader.ReadLine().Trim();
}
string str1 = GeneralSettings.TreatLanguageSpecifics(line);
string[] strArrayRead = str1.Split();
if (strArrayRead.Length >= 0)
{
switch (strArrayRead[0].ToLower())
{
case "mtllib":
if (strArrayRead.Length < 2)
{
System.Windows.Forms.MessageBox.Show("Error reading obj file (mtllib) in line : " + line);
}
myNewModel.GetTexture(strArrayRead[1], fileOBJ);
break;
case "v": //Vertex
vertex = IOUtils.HelperReadVertex(strArrayRead);
indexInModel++;
vertex.IndexInModel = indexInModel;
myNewModel.vertexList.Add(vertex);
break;
case "vt": //Texture
if (strArrayRead.Length < 3)
{
System.Windows.Forms.MessageBox.Show("Error reading obj file (Vertex) in line : " + line);
}
Vector3d vector1 = new Vector3d(0.0, 0.0, 0.0);
double.TryParse(strArrayRead[1], NumberStyles.Float | NumberStyles.AllowThousands, (IFormatProvider)null, out vector1.X);
double.TryParse(strArrayRead[2], NumberStyles.Float | NumberStyles.AllowThousands, (IFormatProvider)null, out vector1.Y);
myNewModel.TextureCoords.Add(new float[2] {
(float)vector1.X, (float)vector1.Y
});
break;
case "vn": //Normals
if (strArrayRead.Length < 4)
{
System.Windows.Forms.MessageBox.Show("Error reading obj file (Normals) in line : " + line);
}
Vector3d vector2 = new Vector3d(0.0, 0.0, 0.0);
double.TryParse(strArrayRead[1], NumberStyles.Float | NumberStyles.AllowThousands, (IFormatProvider)null, out vector2.X);
double.TryParse(strArrayRead[2], NumberStyles.Float | NumberStyles.AllowThousands, (IFormatProvider)null, out vector2.Y);
double.TryParse(strArrayRead[3], NumberStyles.Float | NumberStyles.AllowThousands, (IFormatProvider)null, out vector2.Z);
//vector2.NormalizeNew();
myNewModel.Normals.Add(vector2);
break;
case "f":
Triangle a = helper_ReadTriangle(strArrayRead, myNewModel);
p.Triangles.Add(a);
break;
case "g":
if (p.Triangles.Count > 0)
{
p.ColorOverall = myNewModel.TextureBitmap != null ? new Vector3d(1.0, 1.0, 1.0) : new Vector3d(0.3 * Math.Cos((double)(23 * myNewModel.Parts.Count)) + 0.5, 0.5 * Math.Cos((double)(17 * myNewModel.Parts.Count + 1)) + 0.5, 0.5 * Math.Cos((double)myNewModel.Parts.Count) + 0.5);
myNewModel.Parts.Add(new Part(p));
}
if (strArrayRead.Length > 1)
{
p.Name = str1.Replace(strArrayRead[1], "");
}
p.Triangles.Clear();
break;
}
}
}
if (p.Triangles.Count > 0)
{
p.ColorOverall = new Vector3d(1.0, 1.0, 1.0);
myNewModel.Parts.Add(p);
}
else
{
AssignTriangleAndPartFromVertex(myNewModel);
}
streamReader.Close();
myNewModel.Helper_AdaptNormalsForEachVertex();
myNewModel.CalculateBoundingBox(true);
}
}
catch (Exception err)
{
System.Windows.Forms.MessageBox.Show("Error reading obj file (general): " + line + " ; " + err.Message);
}
}