static public void ReadPlyFile(string filePath, bool preloadIntoMemory = true)
{
{
byte[] contents = File.ReadAllBytes(filePath);
var ms = new MemoryStream(contents);
PlyFile file = new PlyFile();
file.ParseHeader(ms);
Console.WriteLine("[ply_header] Type: " + (file.IsBinaryFile() ? "binary" : "ascii"));
foreach (var comment in file.GetComments())
{
Console.WriteLine("\t[ply_header] Comment: " + comment);
}
foreach (var info in file.GetInfo())
{
Console.WriteLine("\t[ply_header] Info: " + info);
}
foreach (var element in file.GetElements())
{
Console.WriteLine("\t[ply_header] element: " + element.Name + "(" + element.Size + ")");
foreach (var p in element.Properties)
{
Console.Write("\t[ply_header] \tproperty: " + p.Name + " (type=" + PlyHelper.PropertyTable[p.PropertyType].Str + ")");
if (p.IsList)
{
Console.Write(" (list_type=" + PlyHelper.PropertyTable[p.ListType].Str + ")");
}
Console.WriteLine();
}
}
PlyData vertices = file.RequestPropertiesFromElement("vertex", new List <string> {
"x", "y", "z"
});
PlyData normals = file.RequestPropertiesFromElement("vertex", new List <string> {
"nx", "ny", "nz"
});
PlyData faces = file.RequestPropertiesFromElement("face", new List <string> {
"vertex_indices"
});
file.Read(ms);
if (vertices != null)
{
Console.WriteLine("\tRead " + vertices.Count + " total vertices");
}
if (normals != null)
{
Console.WriteLine("\tRead " + normals.Count + " total vertex normals");
}
if (faces != null)
{
Console.WriteLine("\tRead " + faces.Count + " total faces (triangles)");
}
}
}
static void WritePlyExample(string filename)
{
Geometry cube = MakeCubeGeometry();
{
PlyFile cubeFile = new PlyFile();
byte[] verticesbytes = new byte[cube.vertices.Count * sizeof(float)];
System.Buffer.BlockCopy(cube.vertices.ToArray(), 0, verticesbytes, 0, verticesbytes.Length);
cubeFile.AddPropertiesToElement("vertex", new List <string> {
"x", "y", "z"
},
TinyplyCSharp.Type.FLOAT32, cube.vertices.Count / 3, verticesbytes, TinyplyCSharp.Type.INVALID, 0);
byte[] normalbytes = new byte[cube.normals.Count * sizeof(float)];
System.Buffer.BlockCopy(cube.normals.ToArray(), 0, normalbytes, 0, normalbytes.Length);
cubeFile.AddPropertiesToElement("vertex", new List <string> {
"nx", "ny", "nz"
},
TinyplyCSharp.Type.FLOAT32, cube.normals.Count / 3, normalbytes, TinyplyCSharp.Type.INVALID, 0);
byte[] trianglebytes = new byte[cube.triangles.Count * sizeof(int)];
System.Buffer.BlockCopy(cube.triangles.ToArray(), 0, trianglebytes, 0, trianglebytes.Length);
cubeFile.AddPropertiesToElement("face", new List <string> {
"vertex_indices"
},
TinyplyCSharp.Type.UINT32, cube.triangles.Count / 3, trianglebytes, TinyplyCSharp.Type.UINT8, 3);
cubeFile.GetComments().Add("generated by tinyply 2.3");
using (FileStream outStream = File.Open(filename + "-ascii.ply", FileMode.Create))
{
cubeFile.Write(outStream, false);
}
using (FileStream outStream = File.Open(filename + "-binary.ply", FileMode.Create))
{
cubeFile.Write(outStream, true);
}
}
}
