public PLY(FileStream fileStream)
{
tokenReader = new TokenReader(fileStream);
ReadHeader();
ReadData();
tokenReader.Close();
}
static public WorldcraftMap FromFile(string strFileName, string strTexturePath)
{
//Debug2.Push( "Reading Worldcraft Map" );
WorldcraftMap wm = new WorldcraftMap();
wm.FileName = strFileName;
//wm.Textures.DefaultPath = strTexturePath;
//wm.Textures.DefaultExtension = ".bmp";
// progressTracker.UpdateProgress( 20 );
// progressTracker.UpdateTask( "Parsing worldcraft map: '" + strFileName + "'..." );
TokenReader tr = new TokenReader(strFileName, ' ');
int faceCount = 0;
while (tr.LookAhead != null && tr.LookAhead == "{")
{
WorldcraftObject wo = WorldcraftObject.FromTokenReader(tr, wm.Textures);
faceCount += wo.Faces.Count;
wm.Objects.Add(wo);
}
tr.Close();
//Thread.Sleep( 200 );
// progressTracker.UpdateTask( " worldcraft objects: " + wm.Objects.Count );
// progressTracker.UpdateTask( " totals faces count: " + faceCount );
// progressTracker.UpdateTask( " # of textures in use: " + wm.Textures.Count );
//Debug2.Pop();
return(wm);
}
public void LoadDataSet(string fileName, Color clr)
{
//Debug.Assert( this.Faces.Count == 0 );
//Debug2.Push( "Parse Object Definition File" );
TokenReader tr = new TokenReader(fileName, ' ');
int vertexCount = int.Parse(tr.GetToken());
int triangleCount = int.Parse(tr.GetToken());
_vertices = new Vector3D[vertexCount];
_normals = new Vector3D[vertexCount];
_triangles = new int[triangleCount * 3];
_trianglePlanes = new Plane3D[triangleCount];
for (int v = 0; v < vertexCount; v++)
{
tr.GetToken();
_vertices[v] = new Vector3D(
float.Parse(tr.GetToken()),
float.Parse(tr.GetToken()),
float.Parse(tr.GetToken()));
_normals[v] = new Vector3D(0, 0, 0);
}
// translate vertices
Vector3D ptOldMin, ptOldMax;
FaceUtils.GetExtents(_vertices, out ptOldMin, out ptOldMax);
Vector3D ptOldMidPoint = (ptOldMin + ptOldMax) * 0.5f;
float fOldScale = (ptOldMidPoint - ptOldMin).GetMagnitude();
for (int i = 0; i < vertexCount; i++)
{
_vertices[i] = (_vertices[i] - ptOldMidPoint) / fOldScale * this.Scale + this.MidPoint;
}
for (int t = 0; t < triangleCount; t++)
{
tr.GetToken();
// triangle vertices
_triangles[t * 3 + 0] = int.Parse(tr.GetToken());
_triangles[t * 3 + 1] = int.Parse(tr.GetToken());
_triangles[t * 3 + 2] = int.Parse(tr.GetToken());
// skip extra triangle info
tr.GetToken();
tr.GetToken();
tr.GetToken();
// calculate triangle normal
Vector3D vertexA = _vertices[_triangles[t * 3 + 0]];
Vector3D vertexB = _vertices[_triangles[t * 3 + 1]];
Vector3D vertexC = _vertices[_triangles[t * 3 + 2]];
_trianglePlanes[t] = Plane3D.FromCoplanarPoints(vertexA, vertexB, vertexC);
//Vector3D.Cross( vertexC - vertexB, vertexA - vertexB ).GetUnit();
}
tr.Close();
//Debug2.Pop();
/*for( int v = 0; v < vertexCount; v ++ ) {
* if( vertexNormals[ v ].GetMagnitude() > 0.1 ) {
* vertexNormals[ v ].Normalize();
* }
* else {
* vertexNormals[ v ] = new Vector3D( 1, 0, 0 );
* }
* } */
//Debug2.Push( "Calculate Face Normals" );
float fLimit = 0f;
for (int t = 0; t < triangleCount; t++)
{
for (int v = 0; v < 3; v++)
{
int vIndex = _triangles[t * 3 + v];
Vector3D normalSum = _trianglePlanes[t].Normal;
Vector3D normal = _trianglePlanes[t].Normal;
for (int t2 = 0; t2 < triangleCount; t2++)
{
if (t2 == t)
{
continue;
}
bool bMatch = false;
for (int v2 = 0; v2 < 3; v2++)
{
if (vIndex == _triangles[t2 * 3 + v2])
{
bMatch = true;
break;
}
}
if (bMatch == true)
{
Vector3D normal2 = _trianglePlanes[t2].Normal;
if (Vector3D.Dot(normal, normal2) > fLimit)
{
normalSum += normal2;
}
}
}
if (normalSum.GetMagnitude() > 0.01)
{
_normals[vIndex] = normalSum.GetUnit();
}
else
{
_normals[vIndex] = (Vector3D)normal.Clone();
}
}
}
//Debug2.Pop();
/*
* int a = faceIndices[ f, 0 ];
* int b = faceIndices[ f, 1 ];
* int c = faceIndices[ f, 2 ];
*
* Face face = this.Faces[f];
* face.VertexNormals = new Vector3DCollection();
* face.VertexNormals.Add( vertexNormals[ a ].Clone() );
* face.VertexNormals.Add( vertexNormals[ b ].Clone() );
* face.VertexNormals.Add( vertexNormals[ c ].Clone() );
* }*/
}