Class MeshWindingNumberGrid

Sample mesh winding number (MWN) on a discrete grid. Can sample full grid, or compute MWN values along a specific iso-contour and then fill in rest of grid with correctly-signed values via fast sweeping (this is the default)

TODO:

• I think we are over-exploring the grid most of the time. eg along an x-ray that intersects the surface, we only need at most 2 cells, but we are computing at least 3, and possibly 5.
• it may be better to use something like bloomenthal polygonizer continuation? where we are keeping track of active edges instead of active cells?

Inheritance

Object

MeshWindingNumberGrid

Inherited Members

Object.ToString()

Object.Equals(Object)

Object.Equals(Object, Object)

Object.ReferenceEquals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Namespace: gs

Assembly: cs.temp.dll.dll

Syntax

public class MeshWindingNumberGrid

Constructors

MeshWindingNumberGrid(DMesh3, DMeshAABBTree3, Double)

Declaration

public MeshWindingNumberGrid(DMesh3 mesh, DMeshAABBTree3 spatial, double cellSize)

Parameters

Type	Name	Description
DMesh3	mesh
DMeshAABBTree3	spatial
Double	cellSize

Fields

BufferCells

Declaration

public int BufferCells

Field Value

Type	Description
Int32

CancelF

if this function returns true, we should abort calculation

Declaration

public Func<bool> CancelF

Field Value

Type	Description
Func<Boolean>

CellSize

Declaration

public double CellSize

Field Value

Type	Description
Double

ComputeMode

Declaration

public MeshWindingNumberGrid.ComputeModes ComputeMode

Field Value

Type	Description
MeshWindingNumberGrid.ComputeModes

DebugPrint

Declaration

public bool DebugPrint

Field Value

Type	Description
Boolean

Mesh

Declaration

public DMesh3 Mesh

Field Value

Type	Description
DMesh3

MeshSpatial

Declaration

public DMeshAABBTree3 MeshSpatial

Field Value

Type	Description
DMeshAABBTree3

WantMeshSDFGrid

Declaration

public bool WantMeshSDFGrid

Field Value

Type	Description
Boolean

WindingIsoValue

Declaration

public float WindingIsoValue

Field Value

Type	Description
Single

Properties

Dimensions

Declaration

public Vector3i Dimensions { get; }

Property Value

Type	Description
Vector3i

Grid

winding-number grid available after calling Compute()

Declaration

public DenseGrid3f Grid { get; }

Property Value

Type	Description
DenseGrid3f

GridOrigin

Origin of the winding-number grid, in same coordinates as mesh

Declaration

public Vector3f GridOrigin { get; }

Property Value

Type	Description
Vector3f

Item[Int32, Int32, Int32]

Declaration

public float this[int i, int j, int k] { get; }

Parameters

Type	Name	Description
Int32	i
Int32	j
Int32	k

Property Value

Type	Description
Single

SDFGrid

If ComputeMode==NarrowBand, then we internally compute a signed-distance grid, which will hang onto

Declaration

public MeshSignedDistanceGrid SDFGrid { get; }

Property Value

Type	Description
MeshSignedDistanceGrid

Methods

CellCenter(Int32, Int32, Int32)

Declaration

public Vector3f CellCenter(int i, int j, int k)

Parameters

Type	Name	Description
Int32	i
Int32	j
Int32	k

Returns

Type	Description
Vector3f

Compute()

Declaration

public void Compute()