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API > API/Runtime > API/Runtime/GeometryCore > API/Runtime/GeometryCore/Spatial
References
| Module | GeometryCore |
| Header | /Engine/Source/Runtime/GeometryCore/Public/Spatial/PointSetHashTable.h |
| Include | #include "Spatial/PointSetHashTable.h" |
Syntax
class FPointSetHashtable
Remarks
FPointSetHashTable builds a spatial data structure that supports efficient range queries on a point set (in FPointSetAdapterd form). The spatial data structure is currently a uniform sparse 3D grid.
Variables
| Type | Name | Description | |
|---|---|---|---|
 |
double | CellSize | Cell size of grid |
 |
TSparseGrid3< PointList > | Grid | Sparse grid, each voxel contains lists of contained points |
 |
FShiftGridIndexer3d | GridIndexer | Index mapping object |
 |
FVector3d | Origin | World origin of sparse grid |
 |
FPointSetAdapterd * | Points | Input point set |
Constructors
| Type | Name | Description | |
|---|---|---|---|
 |
FPointSetHashtable
(
FPointSetAdapterd* PointSetIn |
Functions
| Type | Name | Description | |
|---|---|---|---|
 |
void | Construct the spatial data structure for the current point set | |
 |
bool | FindPointsInBall
(
const FVector3d& QueryPt, |
Find all points within given query distance from query point. |
Typedefs
| Name | Description |
|---|---|
| PointList |