private void populateMatrix(List <Face> faces, List <Face>[,,] matrix, Extent size)
{
Trace.TraceInformation("Partitioning Faces.");
int xLength = matrix.GetLength(0);
int yLength = matrix.GetLength(1);
int zLength = matrix.GetLength(2);
// World to cube ratios
double xOffset = 0 - size.XMin;
double xRatio = xLength / (size.XSize);
double yOffset = 0 - size.YMin;
double yRatio = yLength / (size.YSize);
double zOffset = 0 - size.ZMin;
double zRatio = zLength / (size.ZSize);
// Initialize matrix
SpatialUtilities.EnumerateSpace(xLength, yLength, zLength,
(x, y, z) => matrix[x, y, z] = new List <Face>());
foreach (var face in faces)
{
List <int> used = new List <int>();
for (int i = 0; i < 3; i++)
{
Vertex vertex = VertexList[face.VertexIndexList[i] - 1];
int x = (int)Math.Floor((vertex.X + xOffset) * xRatio);
int y = (int)Math.Floor((vertex.Y + yOffset) * yRatio);
int z = (int)Math.Floor((vertex.Z + zOffset) * zRatio);
if (x == xLength)
{
x--;
}
if (y == yLength)
{
y--;
}
if (z == zLength)
{
z--;
}
int hash = x * 10000 + y * 100 + z;
if (!used.Contains(hash))
{
matrix[x, y, z].Add(face);
used.Add(hash);
}
}
}
// Crop all the cubes
SpatialUtilities.EnumerateSpace(xLength, yLength, zLength,
(x, y, z) => CropCube(matrix[x, y, z], x, y, z, matrix, size));
}
public void GenerateCubes(string outputPath, SlicingOptions options)
{
CubeMetadata metadata = new CubeMetadata(size)
{
WorldBounds = ObjInstance.Size,
VirtualWorldBounds = options.ForceCubicalCubes ? ObjInstance.CubicalSize : ObjInstance.Size,
VertexCount = ObjInstance.VertexList.Count
};
// Configure texture slicing metadata
if (options.RequiresTextureProcessing())
{
metadata.TextureSetSize = new Vector2(options.TextureSliceX, options.TextureSliceY);
}
else
{
metadata.TextureSetSize = new Vector2(1, 1);
}
// Create texture if there is one
if (!string.IsNullOrEmpty(options.Texture))
{
Texture t = new Texture(this.ObjInstance, options.Texture);
options.TextureInstance = t;
}
// Generate the data
if (options.Debug)
{
SpatialUtilities.EnumerateSpace(metadata.TextureSetSize, (x, y) =>
{
var vertexCounts = GenerateCubesForTextureTileAsync(outputPath, new Vector2(x, y), options, new CancellationToken()).Result;
foreach (var cube in vertexCounts.Keys)
{
metadata.CubeExists[cube.X, cube.Y, cube.Z] = vertexCounts[cube] > 0;
}
});
}
else
{
SpatialUtilities.EnumerateSpaceParallel(metadata.TextureSetSize, (x, y) =>
{
var vertexCounts = GenerateCubesForTextureTileAsync(outputPath, new Vector2(x, y), options, new CancellationToken()).Result;
foreach (var cube in vertexCounts.Keys)
{
metadata.CubeExists[cube.X, cube.Y, cube.Z] = vertexCounts[cube] > 0;
}
});
}
// Write out some json metadata
string metadataPath = Path.Combine(outputPath, "metadata.json");
if (File.Exists(metadataPath))
{
File.Delete(metadataPath);
}
string metadataString = JsonConvert.SerializeObject(metadata);
File.WriteAllText(metadataPath, metadataString);
}