UE::Geometry::FOccupancyGrid3 Struct Reference

#include <OccupancyGrid3.h>

Public Types
enum class	EDomain : int32 { Exterior , Boundary , Interior }
	An enum representing a voxel's classification. More...

Public Member Functions
template<typename MeshType >
	FOccupancyGrid3 (const MeshType &InMesh, const int32 InVoxelResolution)
FVector3i	GetCellIndexFromPoint (const FVector &InPoint) const
FVector3f	GetCellCenterFromIndex (const FVector3i &Index) const
FBox3f	GetCellBoxFromIndex (const FVector3i &Index) const
const TDenseGrid3< EDomain > &	GetOccupancyStateGrid () const
	Returns a reference to the occupancy grid.
float	GetCellSize () const

Detailed Description

Sample mesh occupancy in a voxel grid by using the mesh's winding number, on voxel corners, to determine whether the voxel is fully contained within the interior of the mesh, touches the mesh's boundary, or is fully contained on the exterior of the mesh.

Member Enumeration Documentation

EDomain

enum class UE::Geometry::FOccupancyGrid3::EDomain : int32

strong

An enum representing a voxel's classification.

Enumerator
Exterior
Boundary	The point in the occupancy grid is completely on the exterior of the given mesh.
Interior	The point in the occupancy grid includes a mesh boundary. The point in the occupancy grid is completely on the interior of the given mesh.

Constructor & Destructor Documentation

FOccupancyGrid3()

template<typename MeshType >

UE::Geometry::FOccupancyGrid3::FOccupancyGrid3 ( const MeshType &  InMesh, const int32  InVoxelResolution  )

inline

Member Function Documentation

GetCellBoxFromIndex()

FBox3f UE::Geometry::FOccupancyGrid3::GetCellBoxFromIndex ( const FVector3i &  Index ) const

inline

Given an index into the occupancy grid, returns the bbox that represents the cell in the winding number grid, from which the occupancy got computed.

GetCellCenterFromIndex()

FVector3f UE::Geometry::FOccupancyGrid3::GetCellCenterFromIndex ( const FVector3i &  Index ) const

inline

Given an index into the occupancy grid, returns the midpoint of the bbox that represents the matching cell in the winding number grid, from which the occupancy got computed.

GetCellIndexFromPoint()

FVector3i UE::Geometry::FOccupancyGrid3::GetCellIndexFromPoint ( const FVector &  InPoint ) const

inline

Given a point in space, return a computed index into the occupancy grid. If the point is outside of the mesh's bounding box, the given index will be outside the range of the occupancy grid. To check for validity, test against the occupancy grid's extents as returned by GetOccupancy.

GetCellSize()

float UE::Geometry::FOccupancyGrid3::GetCellSize ( ) const

inline

GetOccupancyStateGrid()

const TDenseGrid3< EDomain > & UE::Geometry::FOccupancyGrid3::GetOccupancyStateGrid ( ) const

inline

Returns a reference to the occupancy grid.

---

The documentation for this struct was generated from the following file:

• Engine/Source/Runtime/GeometryCore/Public/Spatial/OccupancyGrid3.h