VoxelSpace

References
public sealed class VoxelSpace
A sparse voxel volume.

Constructors

VoxelSpace

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public VoxelSpace(double unitSize, ushort[,,] voxels, int offsetX, int offsetY, int offsetZ)
Parameters:
unitSize (double)
voxels (ushort[,,])
offsetX (int)
offsetY (int)
offsetZ (int)

Properties

All

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public IEnumerable<(int x, int y, int z)> All { get; }
Iterate over all set voxel indices. This includes the voxels on the interior and the boundary of the mesh.

AllInterior

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public IEnumerable<(int x, int y, int z)> AllInterior { get; }
Iterate over all interior voxel indices.

Count

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public int Count { get; }
Total number of voxels in the grid, including the unset ones.

CountX

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public int CountX { get; }
Total number of voxels in the grid X direction.

CountY

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public int CountY { get; }
Total number of voxels in the grid Y direction.

CountZ

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public int CountZ { get; }
Total number of voxels in the grid Z direction.

Unit

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public double Unit { get; }
Unit size for voxels.

Methods

CreateFromMesh

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public static VoxelSpace CreateFromMesh(Mesh mesh, double unit, CancellationToken token)
Parameters:
mesh (Mesh)
unit (double)
token (CancellationToken)

GradAt

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public double GradAt(Point3d location, Vector3d normal)
Compute the magnitude of the normalised temperature gradient going into the volume.
Parameters:
location (Point3d)Sampling location.
normal (Vector3d)Normal at location (sampling will happen in the reverse direction). The normal ought to have unit length, although a scaled normal would also affect the depth at which sampling happens, exposing another level of control to the caller.

PointAt

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public Point3d PointAt(int x, int y, int z)
Gets the real world coordinate at the voxel centre.
Parameters:
x (int)Voxel x index.
y (int)Voxel y index.
z (int)Voxel z index.
Returns: Point at voxel centre.

SolveHeatDispersion

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public void SolveHeatDispersion(double targetTemperature, int maximumIterations, CancellationToken token)
Run a cooling simulation. All interior voxels are set to 1.0, all exterior ones to 0.0 and then an iterative smoothing is applied until the average temp drops below 'coolingLimit'.
Parameters:
targetTemperature (double)Use 0.5 when in doubt.
maximumIterations (int)Maximum number of iterations.
token (CancellationToken)Cancellation token.

TempAt

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public double TempAt(int x, int y, int z)
Gets the temperature at the given voxel indices.
Parameters:
x (int)
y (int)
z (int)
Returns: Temp at voxel, or double.NaN if undefined.

TempAt

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public double TempAt(Point3d location)
Measure the interpolated temperature at a location.
Parameters:
location (Point3d)