public bool ParseMesh(BinaryReader reader)
{
byte[] submeshHeader = reader.ReadBytes(7);
if (!Utility.ByteArrayCompare(submeshHeader, ChunkIdTemplate))
{
MessageBox.Show("Expected SUBMESH chunk header, got " + Encoding.ASCII.GetString(submeshHeader));
return(false);
}
Size = reader.ReadInt32();
StringBuilder builder = new StringBuilder();
byte readen = reader.ReadByte();
while (readen != 0)
{
builder.Append(Convert.ToChar(readen));
readen = reader.ReadByte();
}
Name = builder.ToString();
Application.Current.Dispatcher.BeginInvoke((Action)(() => ((P3DElementView)TreeItem.Header).content.Text = Name));
// ((P3DElementView)TreeItem.Header).content.Text = Name;
builder.Clear();
Flags = reader.ReadUInt32();
LocalPos = new P3DVertex(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
Length = reader.ReadSingle();
Height = reader.ReadSingle();
Depth = reader.ReadSingle();
for (int i = 0; i < Parent.Parent.TextureChunk.TexNum; i++)
{
Info.Insert(i, new TextureInfo(this));
Info[i].TextureStart = reader.ReadInt16();
Info[i].NumFlat = reader.ReadInt16();
Info[i].NumFlatMetal = reader.ReadInt16();
Info[i].NumGouraud = reader.ReadInt16();
Info[i].NumGouraudMetal = reader.ReadInt16();
Info[i].NumGouraudMetalEnv = reader.ReadInt16();
Info[i].NumShining = reader.ReadInt16();
}
NumVertices = reader.ReadInt16();
if (NumVertices < 1)
{
MessageBox.Show("Mesh doesn't have vertices");
return(false);
}
for (int i = 0; i < NumVertices; i++)
{
Vertices.Insert(i, new P3DVertex(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle()));
}
NumPolys = reader.ReadInt16();
if (NumPolys < 1)
{
MessageBox.Show("Mesh doesn't have polygons");
return(false);
}
for (int i = 0; i < NumPolys; i++)
{
Polygons.Insert(i, new TexturePolygon());
Polygons[i].P1 = reader.ReadInt16();
Polygons[i].U1 = reader.ReadSingle();
Polygons[i].V1 = reader.ReadSingle();
Polygons[i].P2 = reader.ReadInt16();
Polygons[i].U2 = reader.ReadSingle();
Polygons[i].V2 = reader.ReadSingle();
Polygons[i].P3 = reader.ReadInt16();
Polygons[i].U3 = reader.ReadSingle();
Polygons[i].V3 = reader.ReadSingle();
}
for (int i = 0; i < Parent.Parent.TextureChunk.TexNum; i++)
{
short polyInTex = Info[i].TextureStart;
for (int j = 0; j < Info[i].NumFlat; j++)
{
Polygons[polyInTex + j].Material = P3DMaterial.MAT_FLAT;
Polygons[polyInTex + j].Texture = GetTextureList()[i].Name;
}
polyInTex += Info[i].NumFlat;
for (int j = 0; j < Info[i].NumFlatMetal; j++)
{
Polygons[polyInTex + j].Material = P3DMaterial.MAT_FLAT_METAL;
Polygons[polyInTex + j].Texture = GetTextureList()[i].Name;
}
polyInTex += Info[i].NumFlatMetal;
for (int j = 0; j < Info[i].NumGouraud; j++)
{
Polygons[polyInTex + j].Material = P3DMaterial.MAT_GORAUD;
Polygons[polyInTex + j].Texture = GetTextureList()[i].Name;
}
polyInTex += Info[i].NumGouraud;
for (int j = 0; j < Info[i].NumGouraudMetal; j++)
{
Polygons[polyInTex + j].Material = P3DMaterial.MAT_GORAUD_METAL;
Polygons[polyInTex + j].Texture = GetTextureList()[i].Name;
}
polyInTex += Info[i].NumGouraudMetal;
for (int j = 0; j < Info[i].NumGouraudMetalEnv; j++)
{
Polygons[polyInTex + j].Material = P3DMaterial.MAT_GORAUD_METAL_ENV;
Polygons[polyInTex + j].Texture = GetTextureList()[i].Name;
}
polyInTex += Info[i].NumGouraudMetalEnv;
for (int j = 0; j < Info[i].NumShining; j++)
{
Polygons[polyInTex + j].Material = P3DMaterial.MAT_SHINING;
Polygons[polyInTex + j].Texture = GetTextureList()[i].Name;
}
}
return(true);
}
private static List <Polygons> AccumulateDownPolygons(ConfigSettings config, List <Polygons> inputPolys, List <Polygons> allPartOutlines)
{
int numLayers = inputPolys.Count;
long nozzleSize = config.ExtrusionWidth_um;
long areaToTryAndBe = 20 * 20 * nozzleSize * nozzleSize; // 10 x 10 mm approximately (assuming .5 nozzle)
List <Polygons> allDownOutlines = CreateEmptyPolygons(numLayers);
for (int layerIndex = numLayers - 2; layerIndex >= 0; layerIndex--)
{
Polygons aboveRequiredSupport = inputPolys[layerIndex + 1];
// get all the polygons above us
Polygons accumulatedAbove = allDownOutlines[layerIndex + 1].CreateUnion(aboveRequiredSupport);
// experimental and not working well enough yet
if (config.MinimizeSupportColumns)
{
// reduce the amount of support material used
for (int i = accumulatedAbove.Count - 1; i >= 0; i--)
{
Polygon polygon = accumulatedAbove[i];
double polyArea = polygon.Area();
if (polyArea > areaToTryAndBe)
{
Polygons offsetPolygons = new Polygons()
{
polygon
}.Offset(-config.ExtrusionWidth_um / 2);
accumulatedAbove.RemoveAt(i);
foreach (Polygon polyToAdd in offsetPolygons)
{
accumulatedAbove.Insert(i, polyToAdd);
}
}
else if (polyArea < areaToTryAndBe * .9)
{
Polygons offsetPolygons = new Polygons()
{
polygon
}.Offset(config.ExtrusionWidth_um / 2);
accumulatedAbove.RemoveAt(i);
foreach (Polygon polyToAdd in offsetPolygons)
{
accumulatedAbove.Insert(i, polyToAdd);
}
}
}
}
// add in the support on this level
Polygons curRequiredSupport = inputPolys[layerIndex];
Polygons totalSupportThisLayer = accumulatedAbove.CreateUnion(curRequiredSupport);
// remove the solid polygons on this level
Polygons remainingAbove = totalSupportThisLayer.CreateDifference(allPartOutlines[layerIndex]);
allDownOutlines[layerIndex] = Clipper.CleanPolygons(remainingAbove, cleanDistance_um);
}
return(allDownOutlines);
}
