private void ParserPlyModel()
{
using (BufferedStream sr = new BufferedStream(File.OpenRead(this.path)))
{
int byteCount;
PlyObjectHeader headerObj = this.GetPlyObjectHeader(sr, out byteCount);
this.triangles = new Triangle[headerObj.Elements["face"].Count];
sr.Position = byteCount;
switch (headerObj.Format)
{
case PlyFormat.ascii:
this.ParserASCII(headerObj, sr);
break;
case PlyFormat.binary_big_endian:
using (EndianessBinaryReader br = new EndianessBinaryReader(sr, Endianess.BigEndian))
{
this.ParserBinary(headerObj, br);
}
break;
case PlyFormat.binary_little_endian:
using (EndianessBinaryReader br = new EndianessBinaryReader(sr, Endianess.LittleEndian))
{
this.ParserBinary(headerObj, br);
}
break;
default:
throw new FormatException("Invalid File format!");
break;
}
}
}
private PlyObjectHeader GetPlyObjectHeader(Stream sr, out int byteCount)
{
PlyObjectHeader headerObj = new PlyObjectHeader();
int lineByteCount;
string line = ExtensionsMethods.ReadLine(sr, out lineByteCount);
byteCount = lineByteCount;
if (line.ToLower() != "ply")
{
throw new ArgumentException("Invalid file format. PLY indentifier expected in header file.");
}
String[] lineSplits;
while (line.ToLower() != "end_header")
{
line = ExtensionsMethods.ReadLine(sr, out lineByteCount);
byteCount += lineByteCount;
lineSplits = line.Trim().Split(new char[] { ' ' }, 2, StringSplitOptions.RemoveEmptyEntries);
switch (lineSplits[0])
{
case "format":
lineSplits = lineSplits[1].Split(' ');
headerObj.Format = (PlyFormat)Enum.Parse(typeof(PlyFormat), lineSplits[0]);
NumberFormatInfo nfi = new NumberFormatInfo();
nfi.NumberDecimalSeparator = ".";
nfi.NumberGroupSeparator = ",";
headerObj.Vesion = float.Parse(lineSplits[1], nfi);
break;
case "comment":
headerObj.Comments.Add(lineSplits[1]);
break;
case "element":
lineSplits = lineSplits[1].Split(' ');
ElementDescription element = new ElementDescription(lineSplits[0].ToLower(),
Convert.ToInt32(
lineSplits[lineSplits.Length - 1]));
headerObj.Elements.Add(element);
break;
case "property":
lineSplits = lineSplits[1].Split(' ');
PropertyType pType = (PropertyType)Enum.Parse(typeof(PropertyType), lineSplits[0]);
String pName = lineSplits[lineSplits.Length - 1];
PropertyDescription property = new PropertyDescription(pType, pName);
if (pType == PropertyType.list)
{
property.CountType = (PropertyType)Enum.Parse(typeof(PropertyType), lineSplits[1]);
property.TypeOfList = (PropertyType)Enum.Parse(typeof(PropertyType), lineSplits[2]);
}
headerObj.Elements[headerObj.Elements.Count - 1].Properties.Add(property);
break;
}
}
return(headerObj);
}
private void ParserASCII(PlyObjectHeader header, String content)
{
StringReader sr = new StringReader(content);
Point3D[] vertices = new Point3D[header.Elements["vertex"].Count];
PointerToVertex[] pointersToVertex = new PointerToVertex[header.Elements["face"].Count];
//int headerLength = header.Count + 1;
//while (sr.ReadLine().ToLower() != "end_header") { } //Pass header...
NumberFormatInfo nfi = new NumberFormatInfo();
nfi.NumberDecimalSeparator = ".";
nfi.NumberGroupSeparator = ",";
String[] str;
//for number of vertices readed in header do...
for (int i = 0; i < vertices.Length; i++)
{
str = sr.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
vertices[i] = new Point3D(float.Parse(str[0], nfi), float.Parse(str[1], nfi), float.Parse(str[2], nfi));
//Adjusting BoundBox...
this.BoundBox.Include(vertices[i]);
//Reporting progress
int percent = (int)(((float)i / vertices.Length) * 100.0f);
if ((percent % 20) == 0)
{
this.OnElementLoaded(percent, ElementMesh.Vertex);
}
}
for (int i = 0; i < this.triangles.Length; i++)
{
str = sr.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
pointersToVertex[i] = new PointerToVertex(Int32.Parse(str[1], nfi), Int32.Parse(str[2], nfi),
Int32.Parse(str[3], nfi));
this.triangles[i] = new Triangle(vertices[pointersToVertex[i].Vertex1],
vertices[pointersToVertex[i].Vertex2],
vertices[pointersToVertex[i].Vertex3]);
int percent = (int)(((float)i / this.triangles.Length) * 100.0f);
if ((percent % 20) == 0)
{
this.OnElementLoaded(percent, ElementMesh.Triangle);
}
}
//System.Windows.Forms.MessageBox.Show("Degenerate Triangles: " + RemoveDegenerateTriangles(ref pointersToVertex));
//RemoveUnusedVertices(ref vertices, pointersToVertex);
this.ProcessNormalsPerVertex(pointersToVertex, vertices.Length);
vertices = null;
pointersToVertex = null;
GC.Collect();
GC.WaitForPendingFinalizers();
}
private void ParserASCII(PlyObjectHeader header, Stream sr)
{
Point3D[] vertices = new Point3D[header.Elements["vertex"].Count];;
PointerToVertex[] pointersToVertex = new PointerToVertex[header.Elements["face"].Count];
//int headerLength = header.Count + 1;
//while (sr.ReadLine().ToLower() != "end_header") { } //Pass header...
NumberFormatInfo nfi = new NumberFormatInfo();
nfi.NumberDecimalSeparator = ".";
nfi.NumberGroupSeparator = ",";
//Initialize bound box calculation
Point3D pmin, pmax;
pmin = pmax = Point3D.Zero;
this.boundBox = new BoundBox();
String[] str;
//for number of vertices readed in header do...
for (int i = 0; i < vertices.Length; i++)
{
str = sr.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
vertices[i] = new Point3D(float.Parse(str[0], nfi), float.Parse(str[1], nfi),
float.Parse(str[2], nfi));
//Adjusting BoundBox...
this.boundBox.Include(vertices[i]);
//Reporting progress
int percent = (int)(((float)i / vertices.Length) * 100.0f);
if ((percent % 20) == 0)
{
this.OnElementLoaded(percent, ElementMesh.Vertex);
}
}
for (int i = 0; i < this.triangles.Length; i++)
{
str = sr.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
pointersToVertex[i] = new PointerToVertex(Int32.Parse(str[1], nfi), Int32.Parse(str[2], nfi),
Int32.Parse(str[3], nfi));
this.triangles[i] = new Triangle(vertices[pointersToVertex[i].Vertex1],
vertices[pointersToVertex[i].Vertex2],
vertices[pointersToVertex[i].Vertex3]);
int percent = (int)(((float)i / this.triangles.Length) * 100.0f);
if ((percent % 20) == 0)
{
this.OnElementLoaded(percent, ElementMesh.Triangle);
}
}
this.ProcessNormalsPerVertex(pointersToVertex, vertices.Length);
vertices = null;
pointersToVertex = null;
GC.Collect();
}
private void ParserPlyModel()
{
using (BufferedStream sr = new BufferedStream(File.OpenRead(this.path))) {
int byteCount;
PlyObjectHeader headerObj = this.GetPlyObjectHeader(sr, out byteCount);
this.triangles = new Triangle[headerObj.Elements["face"].Count];
sr.Position = byteCount;
switch (headerObj.Format)
{
case PlyFormat.ascii:
FileInfo info = new FileInfo(this.path);
byte[] file = new byte[info.Length];
sr.Read(file, 0, file.Length);
string content = Encoding.ASCII.GetString(file);
this.ParserASCII(headerObj, content);
file = null;
content = null;
GC.Collect();
GC.WaitForPendingFinalizers();
//antes = DateTime.Now;
//this.ParserASCII(headerObj, sr);
//TimeSpan depoisNovo = antes - DateTime.Now;
//System.Windows.Forms.MessageBox.Show("Tempo Novo: " + depoisNovo);
break;
case PlyFormat.binary_big_endian:
using (EndianessBinaryReader br = new EndianessBinaryReader(sr, Endianess.BigEndian)) {
this.ParserBinary(headerObj, br);
}
break;
case PlyFormat.binary_little_endian:
using (EndianessBinaryReader br = new EndianessBinaryReader(sr, Endianess.LittleEndian)) {
this.ParserBinary(headerObj, br);
}
break;
default:
throw new FormatException("Invalid File format!");
}
}
}
private void ParserBinary(PlyObjectHeader header, BinaryReader ebr)
{
Point3D[] vertices = new Point3D[header.Elements["vertex"].Count];
PointerToVertex[] pointersToVertex = new PointerToVertex[header.Elements["face"].Count];
for (int i = 0; i < header.Elements.Count; i++)
{
ElementDescription element = header.Elements[i];
for (int e = 0; e < element.Count; e++)
{
for (int p = 0; p < element.Properties.Count; p++)
{
PropertyDescription property = element.Properties[p];
if (property.IsList)
{
int listCount = 0;
if (property.CountType == PropertyType.uchar || property.CountType == PropertyType.uint8)
{
listCount = ebr.ReadByte();
}
else
{
throw new ArgumentException(
"The type expected for List Count is 'uchar'. Type in file: '" + property.CountType +
"'");
}
if (property.TypeOfList == PropertyType.@int || property.TypeOfList == PropertyType.int32)
{
if (element.Name == "face")
{
for (int j = 0; j < listCount; j += 3)
{
pointersToVertex[e].Vertex1 = ebr.ReadInt32();
pointersToVertex[e].Vertex2 = ebr.ReadInt32();
pointersToVertex[e].Vertex3 = ebr.ReadInt32();
this.triangles[e] = new Triangle(vertices[pointersToVertex[e].Vertex1],
vertices[pointersToVertex[e].Vertex2],
vertices[pointersToVertex[e].Vertex3]);
int percent = (int)(((float)e / this.triangles.Length) * 100.0f);
if ((percent % 20) == 0)
{
this.OnElementLoaded(percent, ElementMesh.Triangle);
}
}
}
else if (element.Name == "vertex")
{
#region Ignore other properties for vertex
//for (int j = 0; j < listCount; j += 3)
//{
// ebr.ReadInt32();
// ebr.ReadInt32();
// ebr.ReadInt32();
//}
#endregion
ebr.ReadBytes(element.Properties.SumTypesLength);
break;
}
}
else
{
throw new ArgumentException(
"The type expected for List elements is 'int'. Type in file: '" +
property.TypeOfList + "'");
}
}
else
{
if (element.Name == "face")
{
ebr.ReadBytes(element.Properties.SumTypesLength);
break;
}
else if (element.Name == "vertex")
{
if (property.Name.ToLowerInvariant() == "x")
{
vertices[e].X = ebr.ReadSingle();
vertices[e].Y = ebr.ReadSingle();
vertices[e].Z = ebr.ReadSingle();
p += (2 + element.Properties.Count - p);
ebr.ReadBytes(element.Properties.SumTypesLength - 12);
//Adjusting BoundBox...
this.BoundBox.Include(vertices[e]);
//Reporting progress
int percent = (int)(((float)e / vertices.Length) * 100.0f);
if ((percent % 20) == 0)
{
this.OnElementLoaded(percent, ElementMesh.Vertex);
}
}
#region Antigo
//switch (property.Type)
//{
// case PropertyType.@char:
// case PropertyType.int8:
// ebr.ReadSByte();
// break;
// case PropertyType.uchar:
// case PropertyType.uint8:
// ebr.ReadByte();
// break;
// case PropertyType.@short:
// case PropertyType.int16:
// ebr.ReadInt16();
// break;
// case PropertyType.@ushort:
// case PropertyType.uint16:
// ebr.ReadUInt16();
// break;
// case PropertyType.@int:
// case PropertyType.int32:
// ebr.ReadInt32();
// break;
// case PropertyType.@uint:
// case PropertyType.uint32:
// ebr.ReadUInt32();
// break;
// case PropertyType.@float:
// case PropertyType.float32:
// vertices[e].X = ebr.ReadSingle();
// vertices[e].Y = ebr.ReadSingle();
// vertices[e].Z = ebr.ReadSingle();
// p += 2;
// //Adjusting BoundBox...
// this.BoundBox.Include(vertices[e]);
// //Reporting progress
// int percent = (int)(((float)e / vertices.Length) * 100.0f);
// if ((percent % 20) == 0)
// {
// this.OnElementLoaded(percent, ElementMesh.Vertex);
// }
// break;
// case PropertyType.@double:
// case PropertyType.float64:
// ebr.ReadDouble();
// break;
// default:
// break;
//}
#endregion
}
}
}
}
}
this.ProcessNormalsPerVertex(pointersToVertex, vertices.Length);
vertices = null;
pointersToVertex = null;
GC.Collect();
GC.WaitForPendingFinalizers();
}
private void ParserBinary(PlyObjectHeader header, BinaryReader ebr)
{
Point3D[] vertices = new Point3D[header.Elements["vertex"].Count];;
PointerToVertex[] pointersToVertex = new PointerToVertex[header.Elements["face"].Count];
//Initialize bound box calculation
Point3D pmin, pmax;
pmin = pmax = Point3D.Zero;
this.boundBox = new BoundBox();
for (int i = 0; i < header.Elements.Count; i++)
{
ElementDescription element = header.Elements[i];
for (int e = 0; e < element.Count; e++)
{
for (int p = 0; p < element.Properties.Count; p++)
{
PropertyDescription property = element.Properties[p];
if (property.IsList)
{
int listCount = 0;
if (property.CountType == PropertyType.uchar || property.CountType == PropertyType.uint8)
{
listCount = ebr.ReadByte();
}
else
{
throw new ArgumentException("The type expected for List Count is 'uchar'. Type in file: '" + property.CountType + "'");
}
if (property.TypeOfList == PropertyType.@int || property.TypeOfList == PropertyType.int32)
{
if (element.Name == "face")
{
for (int j = 0; j < listCount; j += 3)
{
pointersToVertex[e].Vertex1 = ebr.ReadInt32();
pointersToVertex[e].Vertex2 = ebr.ReadInt32();
pointersToVertex[e].Vertex3 = ebr.ReadInt32();
this.triangles[e] = new Triangle(vertices[pointersToVertex[e].Vertex1],
vertices[pointersToVertex[e].Vertex2],
vertices[pointersToVertex[e].Vertex3]);
int percent = (int)(((float)e / this.triangles.Length) * 100.0f);
if ((percent % 20) == 0)
{
this.OnElementLoaded(percent, ElementMesh.Triangle);
}
}
}
else if (element.Name == "vertex")
{
#region Ignore other properties for vertex
for (int j = 0; j < listCount; j += 3)
{
ebr.ReadInt32();
ebr.ReadInt32();
ebr.ReadInt32();
}
#endregion
}
}
else
{
throw new ArgumentException("The type expected for List elements is 'int'. Type in file: '" + property.TypeOfList + "'");
}
}
else
{
if (element.Name == "face")
{
#region Ignore other properties for face
switch (property.Type)
{
case PropertyType.@char:
case PropertyType.int8:
ebr.ReadSByte();
break;
case PropertyType.uchar:
case PropertyType.uint8:
ebr.ReadByte();
break;
case PropertyType.@short:
case PropertyType.int16:
ebr.ReadInt16();
break;
case PropertyType.@ushort:
case PropertyType.uint16:
ebr.ReadUInt16();
break;
case PropertyType.@int:
case PropertyType.int32:
ebr.ReadInt32();
break;
case PropertyType.@uint:
case PropertyType.uint32:
ebr.ReadUInt32();
break;
case PropertyType.@float:
case PropertyType.float32:
ebr.ReadSingle();
break;
case PropertyType.@double:
case PropertyType.float64:
ebr.ReadDouble();
break;
default:
break;
}
#endregion
}
else if (element.Name == "vertex")
{
switch (property.Type)
{
case PropertyType.@char:
case PropertyType.int8:
ebr.ReadSByte();
break;
case PropertyType.uchar:
case PropertyType.uint8:
ebr.ReadByte();
break;
case PropertyType.@short:
case PropertyType.int16:
ebr.ReadInt16();
break;
case PropertyType.@ushort:
case PropertyType.uint16:
ebr.ReadUInt16();
break;
case PropertyType.@int:
case PropertyType.int32:
ebr.ReadInt32();
break;
case PropertyType.@uint:
case PropertyType.uint32:
ebr.ReadUInt32();
break;
case PropertyType.@float:
case PropertyType.float32:
vertices[e].X = ebr.ReadSingle();
vertices[e].Y = ebr.ReadSingle();
vertices[e].Z = ebr.ReadSingle();
p += 2;
//Adjusting BoundBox...
this.boundBox.Include(vertices[e]);
//Reporting progress
int percent = (int)(((float)e / vertices.Length) * 100.0f);
if ((percent % 20) == 0)
{
this.OnElementLoaded(percent, ElementMesh.Vertex);
}
break;
case PropertyType.@double:
case PropertyType.float64:
ebr.ReadDouble();
break;
default:
break;
}
}
}
}
}
}
this.ProcessNormalsPerVertex(pointersToVertex, vertices.Length);
vertices = null;
pointersToVertex = null;
GC.Collect();
}
