public XbimFaceTriangulation Transform(XbimQuaternion q)
{
var result = new XbimFaceTriangulation(_indices.Count, _normals.Count);
foreach (var normal in _normals)
{
result.AddNormal(normal.Transform(q));
}
foreach (var index in _indices)
{
result.AddIndex(index);
}
return(result);
}
public static XbimShapeTriangulation ReadShapeTriangulation(this BinaryReader br)
{
var version = br.ReadByte(); //stream format version
var numVertices = br.ReadInt32();
var numTriangles = br.ReadInt32();
var vertices = new List<XbimPoint3D>(numVertices);
for (var i = 0; i < numVertices; i++)
{
vertices.Add(br.ReadPointFloat3D());
}
var numFaces = br.ReadInt32();
var faces = new List<XbimFaceTriangulation>(numFaces);
for (var i = 0; i < numFaces; i++)
{
var numTrianglesInFace = br.ReadInt32();
if (numTrianglesInFace == 0) continue;
var isPlanar = numTrianglesInFace > 0;
numTrianglesInFace = Math.Abs(numTrianglesInFace);
if (isPlanar)
{
var faceTriangulation = new XbimFaceTriangulation(numTrianglesInFace, 1);
faceTriangulation.AddNormal(br.ReadPackedNormal());
for (var j = 0; j < numTrianglesInFace; j++)
{
faceTriangulation.AddIndex(br.ReadIndex(numVertices));//a
faceTriangulation.AddIndex(br.ReadIndex(numVertices));//b
faceTriangulation.AddIndex(br.ReadIndex(numVertices));//c
}
faces.Add(faceTriangulation);
}
else
{
var faceTriangulation = new XbimFaceTriangulation(numTrianglesInFace, numTrianglesInFace*3);
for (var j = 0; j < numTrianglesInFace; j++)
{
faceTriangulation.AddIndex(br.ReadIndex(numVertices));//a
faceTriangulation.AddNormal(br.ReadPackedNormal());
faceTriangulation.AddIndex(br.ReadIndex(numVertices));//b
faceTriangulation.AddNormal(br.ReadPackedNormal());
faceTriangulation.AddIndex(br.ReadIndex(numVertices));//c
faceTriangulation.AddNormal(br.ReadPackedNormal());
}
faces.Add(faceTriangulation);
}
}
return new XbimShapeTriangulation(vertices, faces, version);
}
public XbimFaceTriangulation Transform(XbimQuaternion q)
{
var result = new XbimFaceTriangulation(_indices.Count, _normals.Count);
foreach (var normal in _normals)
result.AddNormal(normal.Transform(q));
foreach (var index in _indices)
result.AddIndex(index);
return result;
}
