/// <summary>
/// Main method
/// </summary>
/// <param name="argv">
/// A <see cref="System.String"/>
/// </param>
public static void Main(string[] argv)
{
// instantiate GLUT for our windowing provider
Glut.glutInit();
//Glut.glutInitDisplayMode(Glut.GLUT_DOUBLE | Glut.GLUT_RGB | Glut.GLUT_ALPHA | Glut.GLUT_DEPTH);
Glut.glutInitDisplayMode(Glut.GLUT_DOUBLE | Glut.GLUT_RGB | Glut.GLUT_DEPTH);
Glut.glutInitWindowSize( winW, winH );
Glut.glutCreateWindow("Salmon Viewer");
// initialize our OpenGL parameters
Init();
// if no arguments, show message
if (argv.Length <= 0)
{
Console.WriteLine("No file was specified.");
return;
}
file = null;
switch (Path.GetExtension(argv[0]).ToLower())
{
case ".3ds":
try
{
// Load our 3DS model from the command line argument
file = new ThreeDSFile( argv[0] );
model = file.Model;
}
catch (Exception ex)
{
Console.WriteLine("An Error occured: " + ex.Message);
}
break;
// case ".obj":
// new ObjFile(argv[0]);
// break;
default:
Console.WriteLine("Not a supported file type.");
break;
}
modelCenter = new Vector((file.MaxX-file.MinX)/2+file.MinX,
(file.MaxY-file.MinY)/2+file.MinY,
(file.MaxZ-file.MinZ)/2+file.MinZ);
// move eye so model is entirely visible at startup
// center x/y at model's center x/y
double width = file.MaxX-file.MinX;
double height = file.MaxY-file.MinY;
eye[0] = Convert.ToSingle(file.MinX+width/2);
eye[1] = Convert.ToSingle(file.MinY+height/2);
// use trigonometry to calculate the z value that exposes the model
eye[2] = Convert.ToSingle(file.MaxZ + (width > height ? width : height / 2) /
Math.Tan((Math.PI/180) * 90/2));
// print viewer control keys to Console
PrintInstructions();
// instantiate GLUT event handlers
Glut.glutDisplayFunc(new Glut.DisplayCallback(Display));
Glut.glutIdleFunc(new Glut.IdleCallback (Idle) );
Glut.glutKeyboardFunc(new Glut.KeyboardCallback(Keyboard));
Glut.glutKeyboardUpFunc(new Glut.KeyboardUpCallback(KeyboardUp));
Glut.glutReshapeFunc(new Glut.ReshapeCallback(Reshape));
Glut.glutMotionFunc (new Glut.MotionCallback (Motion) );
// start loop and wait for user input
Glut.glutMainLoop();
}
public ObjFile(string fileName)
{
if (string.IsNullOrEmpty(fileName))
{
throw new ArgumentNullException("fileName");
}
if (!File.Exists(fileName))
{
throw new ArgumentException("3ds file could not be found", "fileName");
}
Model model = new Model();
Entity entity = new Entity();
model.Entities.Add(entity);
List<Vector> vectors = new List<Vector>();
List<Vector> normals = new List<Vector>();
List<Quad> quads = new List<Quad>();
List<Triangle> tris = new List<Triangle>();
using (StreamReader sr = File.OpenText(fileName))
{
int curLineNo = 0;
string line = null;
bool done = false;
while ((line = sr.ReadLine()) != null)
{
curLineNo++;
if (done || line.Trim() == string.Empty || line.StartsWith("#"))
{
continue;
}
string[] parts = line.Split(new char[] {' '}, StringSplitOptions.RemoveEmptyEntries);
switch (parts[0])
{
case "v":
// this is a vertex
vectors.Add(ParseVector(parts));
break;
case "vn":
normals.Add(ParseVector(parts));
break;
//case "g":
// done = true;
// break;
case "f":
// a face
if (parts.Length > 5)
{
throw new NotSupportedException( string.Format("Face found with more than four indices (line {0})", curLineNo));
}
if (parts.Length < 3)
{
throw new FormatException(string.Format("Face found with less three indices (line {0})", curLineNo));
}
//Console.WriteLine(line);
// apparently we cannot make the assumption that all faces are of the same number of vertices.
if (parts.Length == 4)
{
tris.Add(new Triangle(ParseFacePart(parts[1]), ParseFacePart(parts[2]), ParseFacePart(parts[3])));
}
else
{
quads.Add(new Quad(ParseFacePart(parts[1]), ParseFacePart(parts[2]), ParseFacePart(parts[3]), ParseFacePart(parts[4])));
}
break;
}
}
Console.WriteLine("v: {0} n: {1} q:{2}", vectors.Count,normals.Count, quads.Count);
}
}
