/// <summary>
/// Reads only position and color information (No normals, texture, triangles etc. etc)
/// </summary>
/// <param name="fileOBJ"></param>
/// <param name="myNewModel"></param>
public static PointCloudVertices ReadObjFile_ToPointCloud(string fileOBJ)
{
PointCloudVertices myPCL = new PointCloudVertices();
string line = string.Empty;
int indexInModel = -1;
try
{
using (StreamReader streamReader = new StreamReader(fileOBJ))
{
//Part p = new Part();
Vertex vertex = new Vertex();
//myNewModel.Part = 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 = GlobalVariables.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 in line : " + line);
// }
// myNewModel.GetTexture(strArrayRead[1], fileOBJ);
// break;
case "v": //Vertex
vertex = HelperReadVertex(strArrayRead);
indexInModel++;
vertex.IndexInModel = indexInModel;
myPCL.Add(vertex);
break;
}
}
}
}
}
catch (Exception err)
{
System.Windows.Forms.MessageBox.Show("Error reading obj file - Vertices: " + line + " ; " + err.Message);
}
return(myPCL);
}
public static Bitmap ReadTexture(string TexFile, string OBJFile)
{
Bitmap textureBitmap = null;
try
{
string[] strArray1 = OBJFile.Split('\\');
string str = "";
TexFile = TexFile.Replace(",", ".");
for (int index = strArray1.Length - 2; index >= 0; --index)
{
str = strArray1[index] + "\\" + str;
}
using (StreamReader streamReader = new StreamReader(str + TexFile))
{
while (!streamReader.EndOfStream)
{
string line = streamReader.ReadLine().Trim();
while (line.EndsWith("\\"))
{
line = line.Substring(0, line.Length - 1) + streamReader.ReadLine().Trim();
}
string[] strArray2 = GlobalVariables.TreatLanguageSpecifics(line).Split();
if (strArray2[0].ToLower() == "map_kd")
{
textureBitmap = new System.Drawing.Bitmap(str + strArray2[1].Replace(",", "."));
}
}
streamReader.Close();
}
}
catch (Exception err)
{
System.Diagnostics.Debug.WriteLine("Err : " + err.Message);
}
return(textureBitmap);
}
private void ReadObjFile(string fileOBJ)
{
this.FileNameLong = fileOBJ;
IOUtils.ExtractDirectoryAndNameFromFileName(this.FileNameLong, ref this.FileNameShort, ref this.Path);
string line = string.Empty;
Vector3 vector;
Vector3 color;
List <Vector3> vectors = new List <Vector3>();
List <Vector3> colors = new List <Vector3>();
List <Vector3> normals = new List <Vector3>();
List <uint> indices = new List <uint>();
List <uint> indicesNormals = new List <uint>();
List <uint> indicesTexture = new List <uint>();
try
{
using (StreamReader streamReader = new StreamReader(fileOBJ))
{
while (!streamReader.EndOfStream)
{
line = streamReader.ReadLine().Trim();
if (!line.StartsWith("#"))
{
while (line.EndsWith("\\"))
{
line = line.Substring(0, line.Length - 1) + streamReader.ReadLine().Trim();
}
string str1 = GlobalVariables.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);
}
this.Texture = IOUtils.ReadTexture(strArrayRead[1], fileOBJ);
break;
case "v": //Vertex
IOUtils.HelperReadVector3dAndColor(strArrayRead, out vector, out color);
vectors.Add(vector);
colors.Add(color);
break;
case "vt": //Texture
if (strArrayRead.Length < 3)
{
System.Windows.Forms.MessageBox.Show("Error reading obj file (Texture) in line : " + line);
}
Vector3d vector1 = new Vector3d(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);
this.TextureCoords.Add(new double[2] {
(double)vector1.X, (double)vector1.Y
});
break;
case "vn": //Normals
if (strArrayRead.Length < 4)
{
System.Windows.Forms.MessageBox.Show("Error reading obj file (Normals) in line : " + line);
}
Vector3 vector2 = new Vector3(0, 0, 0);
float.TryParse(strArrayRead[1], NumberStyles.Float | NumberStyles.AllowThousands, (IFormatProvider)null, out vector2.X);
float.TryParse(strArrayRead[2], NumberStyles.Float | NumberStyles.AllowThousands, (IFormatProvider)null, out vector2.Y);
float.TryParse(strArrayRead[3], NumberStyles.Float | NumberStyles.AllowThousands, (IFormatProvider)null, out vector2.Z);
//vector2.NormalizeNew();
normals.Add(vector2);
break;
case "f":
IOUtils.ReadIndicesLine(strArrayRead, indices, indicesNormals, indicesTexture);
break;
case "g":
//if (myNewModel.Triangles.Count > 0)
//{
// if (myNewModel.TextureBitmap != null)
// {
// p.ColorOverall = System.Drawing.Color.FromArgb(1, 1, 1);
// }
// else
// {
// double r = Convert.ToSingle(0.3 * Math.Cos((double)(23 * myNewModel.Parts.Count)) + 0.5);
// double g = Convert.ToSingle(0.5f * Math.Cos((double)(17 * myNewModel.Parts.Count + 1)) + 0.5);
// double b = Convert.ToSingle(0.5f * Math.Cos((double)myNewModel.Parts.Count) + 0.5);
// p.ColorOverall = System.Drawing.Color.FromArgb(Convert.ToInt32(r * byte.MaxValue), Convert.ToInt32(g * byte.MaxValue), Convert.ToInt32(b * byte.MaxValue));
// }
// //p.ColorOverall = myNewModel.TextureBitmap != null ? new Vector3d(1, 1, 1) : new Vector3d(0.3 * Math.Cos((double)(23 * myNewModel.Parts.Count)) + 0.5, 0.5f * Math.Cos((double)(17 * myNewModel.Parts.Count + 1)) + 0.5, 0.5f * Math.Cos((double)myNewModel.Parts.Count) + 0.5);
// myNewModel.Parts.Add(new Part(p));
//}
//if (strArrayRead.Length > 1)
// p.Name = str1.Replace(strArrayRead[1], "");
//myNewModel.Triangles.Clear();
break;
}
}
}
}
streamReader.Close();
}
}
catch (Exception err)
{
System.Windows.Forms.MessageBox.Show("Error reading obj file (general): " + line + " ; " + err.Message);
}
if (indices.Count != vectors.Count)
{
for (uint i = Convert.ToUInt32(indices.Count); i < vectors.Count; i++)
{
indices.Add(i);
}
}
AssignData(vectors, colors, normals, indices, indicesNormals, indicesTexture);
}
