/// <summary>
/// Adds a face from the importer to the geometry container
/// </summary>
/// <param name="gf">GeoFace object from the importer</param>
private void AddFace(GeoFace gf)
{
// Add a face container.
_LfacePtrCont.Add(
new FacePtrCont()
{
_h = new HandleHalfEdge()
{
_DataIndex = -1
}
}
);
// Add a face handle.
_LfaceHndl.Add(
new HandleFace() { _DataIndex = _LfacePtrCont.Count - 1 }
);
// Insert all the vertices for the face.
List<HandleVertex> LHandleVertsForFace = new List<HandleVertex>();
foreach (float3 vVal in gf._LFVertices)
{
LHandleVertsForFace.Add(
AddVertex(vVal)
);
}
// Insert all the uv coordinates for the face.
List<HandleVertexUV> LHandleUVsForFace = new List<HandleVertexUV>();
foreach (float2 uvVal in gf._UV)
{
_LuvCoordinates.Add(uvVal);
LHandleUVsForFace.Add(new HandleVertexUV() { _DataIndex = _LuvCoordinates.Count - 1 });
}
// Build up the half-edge connections for the face
List<HandleHalfEdge> LHandleHEForFace = new List<HandleHalfEdge>();
for (int i = 0; i < LHandleVertsForFace.Count; i++)
{
HandleVertex fromVert = LHandleVertsForFace[i];
HandleVertex toVert = i + 1 < LHandleVertsForFace.Count ? LHandleVertsForFace[i + 1] : LHandleVertsForFace[0];
LHandleHEForFace.Add(
CreateConnection(fromVert, toVert)
);
}
// Loop over all the half-edges for the face and concat them and set the correct uv coordinates.
for (int i = 0; i < LHandleHEForFace.Count; i++)
{
HandleHalfEdge currentHedge = LHandleHEForFace[i];
HEdgePtrCont hedge = _LhedgePtrCont[currentHedge];
HandleHalfEdge nextHedge = i + 1 < LHandleHEForFace.Count ? LHandleHEForFace[i + 1] : LHandleHEForFace[0];
hedge._nhe = nextHedge;
if (LHandleUVsForFace.Count > 0)
{
HandleVertexUV currentUV = i + 1 < LHandleUVsForFace.Count ? LHandleUVsForFace[i + 1] : LHandleUVsForFace[0];
hedge._vuv = currentUV;
}
//_LhedgePtrCont.RemoveAt(currentHedge);
//_LhedgePtrCont.Insert(currentHedge, hedge);
_LhedgePtrCont[currentHedge] = new HEdgePtrCont()
{
_f = hedge._f,
_he = hedge._he,
_nhe = hedge._nhe,
_v = hedge._v,
_vn = hedge._vn,
_vuv = hedge._vuv
};
}
// Set the half-edge the face points to.
FacePtrCont face = _LfacePtrCont.Last();
face._h = new HandleHalfEdge(LHandleHEForFace.First());
_LfacePtrCont.RemoveAt(_LfacePtrCont.Count - 1);
_LfacePtrCont.Add(face);
}
/// <summary>
/// Loads an asset from file to the memory.
/// </summary>
/// <param name="pathToAsset"></param>
public List <GeoFace> LoadAsset(String pathToAsset)
{
_SassetFileContent = "";
List <String> LvertexHelper = new List <string>();
List <String> LfaceHelper = new List <string>();
String[] splitChar = { " " };
String[] splitChar2 = { "/" };
// Load the file information to the memory
List <String> LgeoValues = LoadFile(pathToAsset);
if (LgeoValues != null)
{
List <float3> LvertexAttr = new List <float3>();
foreach (String line in LgeoValues)
{
string lineStart = line.Length > 2 ? line.Substring(0, 2) : line.Substring(0, line.Length);
if (line.StartsWith("vt"))
{
string[] lineSplitted = line.Split(splitChar, StringSplitOptions.None);
// vertex texture coordinates
if (LFGMessages._DEBUGOUTPUT)
{
Console.WriteLine(LFGMessages.INFO_UVFOUND + line);
}
List <Double> tmpSave = new List <double>();
foreach (string str in lineSplitted)
{
if (!str.StartsWith("vt") && !str.Equals(""))
{
tmpSave.Add(MeshReader.Double_Parse(str));
}
}
float2 uvVal = new float2(
(float)tmpSave[0],
(float)tmpSave[1]
);
_LuvCoords.Add(uvVal);
}
else if (line.StartsWith("vn"))
{
// vertex normals
}
else if (line.StartsWith("v"))
{
// vertex
string[] lineSplitted = line.Split(splitChar, StringSplitOptions.None);
List <Double> tmpSave = new List <double>();
foreach (string str in lineSplitted)
{
if (!str.StartsWith("v") && !str.Equals(""))
{
tmpSave.Add(MeshReader.Double_Parse(str));
}
}
float3 fVal = new float3(
(float)tmpSave[0],
(float)tmpSave[1],
(float)tmpSave[2]
);
LvertexAttr.Add(fVal);
}
else if (line.StartsWith("p"))
{
// point
}
else if (line.StartsWith("l"))
{
// line
}
else if (line.StartsWith("f"))
{
// there are faces, faces with texture coord, faces with vertex normals and faces with text and normals
if (LFGMessages._DEBUGOUTPUT)
{
Console.WriteLine(LFGMessages.INFO_FACEFOUND + line);
}
string[] lineSplitted = line.Split(splitChar, StringSplitOptions.None);
List <Double> tmpSave = new List <double>();
GeoFace geoF = new GeoFace();
geoF._LFVertices = new List <float3>();
geoF._UV = new List <float2>();
foreach (string str in lineSplitted)
{
if (!str.StartsWith("f"))
{
string[] faceSplit = str.Split(splitChar2, StringSplitOptions.None);
string s = faceSplit[0];
if (LFGMessages._DEBUGOUTPUT)
{
Console.WriteLine(LFGMessages.INFO_VERTEXIDFORFACE + s);
}
//if (s != null || s != "" || !s.Equals("") || !s.Equals(" ") || s != " " || !s.Equals("\n") || s != "\n" || s != "\0" || !s.Equals("\0") || !s.Equals("\r") || s != "\r")
if (!s.Equals("\r"))
{
try
{
int fv = Convert.ToInt32(s);
geoF._LFVertices.Add(LvertexAttr[fv - 1]);
if (faceSplit.Length >= 1)
{
string uvIndex = faceSplit[1]; // TODO: Changed for TESTING! Was 1
int uvAdress = Convert.ToInt32(uvIndex);
geoF._UV.Add(_LuvCoords[uvAdress - 1]);
_LKVuvandvert.Add(new KeyValuePair <int, int>(uvAdress - 1, fv - 1));
}
}
catch (FormatException e)
{
if (LFGMessages._DEBUGOUTPUT)
{
Console.WriteLine(LFGMessages.WARNING_INVALIDCHAR + s + e);
}
//Debug.WriteLine(e.StackTrace);
continue;
}
}
}
}
_LgeoFaces.Add(geoF);
}
else if (line.StartsWith("g"))
{
// group
}
else if (line.StartsWith("usemtl"))
{
// use material
}
else if (line.StartsWith("usemtllib"))
{
// material lib
}
}
}
// Clear the content after the import is done
_SassetFileContent = "";
if (_LgeoFaces != null)
{
return(_LgeoFaces);
}
else
{
return(null);
}
}