Class FrustumIntersection

Computes the tiles intersected by the frustum defined by the current camera setup.

Hierarchy

FrustumIntersection

Index

Constructors

constructor

Properties

mapView

Accessors

Methods

Constructors

constructor

new FrustumIntersection(m_camera: PerspectiveCamera, mapView: MapView, m_extendedFrustumCulling: boolean, m_tileWrappingEnabled: boolean, m_enableMixedLod: boolean, m_tilePixelSize?: number): FrustumIntersection

- Defined in @here/harp-mapview/lib/FrustumIntersection.ts:88
Parameters
- m_camera: PerspectiveCamera
- mapView: MapView
- m_extendedFrustumCulling: boolean
- m_tileWrappingEnabled: boolean
- m_enableMixedLod: boolean
- Default value m_tilePixelSize: number = 256
Returns FrustumIntersection

Properties

Readonly mapView

mapView: MapView

Accessors

camera

get camera(): PerspectiveCamera

- Defined in @here/harp-mapview/lib/FrustumIntersection.ts:104
Return camera used for generating frustum.

Returns PerspectiveCamera

projection

get projection(): Projection

- Defined in @here/harp-mapview/lib/FrustumIntersection.ts:111
Return projection used to convert geo coordinates to world coordinates.

Returns Projection

Methods

compute

compute(tilingScheme: TilingScheme, elevationRangeSource: ElevationRangeSource | undefined, zoomLevels: number[], dataSources: DataSource[]): IntersectionResult

- Defined in @here/harp-mapview/lib/FrustumIntersection.ts:143
Computes the tiles intersected by the updated frustum, see updateFrustum.

Parameters
- tilingScheme: TilingScheme
  
  The tiling scheme used to generate the tiles.
- elevationRangeSource: ElevationRangeSource | undefined
  
  Source of elevation range data if any.
- zoomLevels: number[]
  
  A list of zoom levels to render.
- dataSources: DataSource[]
  
  A list of data sources to render.
Returns IntersectionResult

The computation result, see [[FrustumIntersection.Result]].

updateFrustum

updateFrustum(projectionMatrixOverride?: THREE.Matrix4): void

- Defined in @here/harp-mapview/lib/FrustumIntersection.ts:118
Updates the frustum to match the current camera setup.

Parameters
- Optional projectionMatrixOverride: THREE.Matrix4
Returns void

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