/// <summary>
/// Reads a triangle from a binary STL file.
/// </summary>
/// <param name="reader">
/// The reader.
/// </param>
private void ReadTriangle(BinaryReader reader)
{
float ni = ReadFloat(reader);
float nj = ReadFloat(reader);
float nk = ReadFloat(reader);
#pragma warning disable 168
var n = new Vector3D(ni, nj, nk);
#pragma warning restore 168
float x1 = ReadFloat(reader);
float y1 = ReadFloat(reader);
float z1 = ReadFloat(reader);
var v1 = new Point3D(x1, y1, z1);
float x2 = ReadFloat(reader);
float y2 = ReadFloat(reader);
float z2 = ReadFloat(reader);
var v2 = new Point3D(x2, y2, z2);
float x3 = ReadFloat(reader);
float y3 = ReadFloat(reader);
float z3 = ReadFloat(reader);
var v3 = new Point3D(x3, y3, z3);
var attrib = Convert.ToString(ReadUInt16(reader), 2).PadLeft(16, '0').ToCharArray();
var hasColor = attrib[0].Equals('1');
if (hasColor)
{
int blue = attrib[15].Equals('1') ? 1 : 0;
blue = attrib[14].Equals('1') ? blue + 2 : blue;
blue = attrib[13].Equals('1') ? blue + 4 : blue;
blue = attrib[12].Equals('1') ? blue + 8 : blue;
blue = attrib[11].Equals('1') ? blue + 16 : blue;
int b = blue * 8;
int green = attrib[10].Equals('1') ? 1 : 0;
green = attrib[9].Equals('1') ? green + 2 : green;
green = attrib[8].Equals('1') ? green + 4 : green;
green = attrib[7].Equals('1') ? green + 8 : green;
green = attrib[6].Equals('1') ? green + 16 : green;
int g = green * 8;
int red = attrib[5].Equals('1') ? 1 : 0;
red = attrib[4].Equals('1') ? red + 2 : red;
red = attrib[3].Equals('1') ? red + 4 : red;
red = attrib[2].Equals('1') ? red + 8 : red;
red = attrib[1].Equals('1') ? red + 16 : red;
int r = red * 8;
#if !NETFX_CORE
var currentColor = Color.FromRgb(Convert.ToByte(r), Convert.ToByte(g), Convert.ToByte(b));
#else
var currentColor = new Color(r / 255f, g / 255f, b / 255f);
#endif
if (!Color.Equals(this.lastColor, currentColor))
{
this.lastColor = currentColor;
this.index++;
}
if (this.Materials.Count < this.index + 1)
{
this.Materials.Add(new PhongMaterialCore()
{
DiffuseColor = currentColor.ToColor4()
});
}
}
else
{
if (this.Materials.Count < this.index + 1)
{
this.Materials.Add(this.DefaultMaterial);
}
}
if (this.Meshes.Count < this.index + 1)
{
this.Meshes.Add(new MeshBuilder(true, true));
}
this.Meshes[this.index].AddTriangle(v1, v2, v3);
// todo: add normal
}
public bool Equals(Color c)
{
return(_color.Equals((System.Windows.Media.Color)c));
}