Namespace HighPrecisionUtils

Index

Interfaces

Functions

Functions

addInterleavedAttributes3

addInterleavedAttributes3(positions: ArrayLike<number>, stride: number, positionOffset?: number): ArrayLike<number>

- Defined in @here/harp-lines/lib/HighPrecisionUtils.ts:238
Assembles an interleaved buffer containing the position attribute data for a HighPrecisionObject.

Parameters
- positions: ArrayLike<number>
  
  Array of positions.
- stride: number
  
  Stride of the elements in the positions array.
- Default value positionOffset: number = 0
  
  Offset into the positions array.
Returns ArrayLike<number>

convertPositions

convertPositions(positions: ArrayLike<number> | ArrayLike<Vector3>): { positions: number[] }

- Defined in @here/harp-lines/lib/HighPrecisionUtils.ts:296
Convert positions from Array<Vector3> to Array<number>.

Parameters
- positions: ArrayLike<number> | ArrayLike<Vector3>
  
  Array of positions.
Returns { positions: number[] }
- positions: number[]

createAttributes

createAttributes(positions: ArrayLike<number> | ArrayLike<Vector3>): { positionHigh: BufferAttribute; positionLow: BufferAttribute }

- Defined in @here/harp-lines/lib/HighPrecisionUtils.ts:176
Assembles the necessary attribute buffers needed to render HighPrecisionObject.

Parameters
- positions: ArrayLike<number> | ArrayLike<Vector3>
  
  Array of positions.
Returns { positionHigh: BufferAttribute; positionLow: BufferAttribute }
- positionHigh: BufferAttribute
- positionLow: BufferAttribute

createHighPrecisionCameraPos

createHighPrecisionCameraPos(camera: Camera, objectInverseWorldMatrix: Matrix4): HighPrecisionCameraInfo

- Defined in @here/harp-lines/lib/HighPrecisionUtils.ts:110
Calculate high-precision camera position used in vertex shader of high-precision materials.

Parameters
- camera: Camera
  
  Camera used to get the high-precision position.
- objectInverseWorldMatrix: Matrix4
  
  Inverse World Matrix of the rendered HighPrecisionObject.
Returns HighPrecisionCameraInfo

createLine

createLine(linePositions: ArrayLike<number>, params: HighPrecisionLineParams): HighPrecisionLine | HighPrecisionWireFrameLine

- Defined in @here/harp-lines/lib/HighPrecisionUtils.ts:328
Creates a HighPrecisionLine or HighPrecisionWireFrameLine object.

Parameters
- linePositions: ArrayLike<number>
  
  Array of 2D/3D positions.
- params: HighPrecisionLineParams
  
  Parameters used to configure the created HighPrecisionObject.
Returns HighPrecisionLine | HighPrecisionWireFrameLine

createPoints

createPoints(pointPositions: ArrayLike<number>, materialParameters?: PointsMaterialParameters | HighPrecisionPointMaterial): HighPrecisionPoints

- Defined in @here/harp-lines/lib/HighPrecisionUtils.ts:370
Creates a group of HighPrecisionPoints.

Parameters
- pointPositions: ArrayLike<number>
  
  Array of 2D/3D positions.
- Optional materialParameters: PointsMaterialParameters | HighPrecisionPointMaterial
  
  Parameters used to configure the material used to render the created HighPrecisionPoints.
Returns HighPrecisionPoints

doubleToFloatVec

doubleToFloatVec(v: Vector3): Vector3

- Defined in @here/harp-lines/lib/HighPrecisionUtils.ts:37
Extract the float parts of all vector members, Making this a Vector3 of float. precision.

Parameters
- v: Vector3
  
  -
Returns Vector3

makeFloatVec

makeFloatVec(v: Vector3): Vector3

- Defined in @here/harp-lines/lib/HighPrecisionUtils.ts:47
Convert a Vector3 to float (in place!) Returns the minor float vector, which is the difference of the double elements and their float counterparts.

Parameters
- v: Vector3
  
  Vector3 to convert to float IN-PLACE!
Returns Vector3

setPositions

setPositions(object: HighPrecisionObject, positions: ArrayLike<number> | ArrayLike<Vector3>): number

- Defined in @here/harp-lines/lib/HighPrecisionUtils.ts:279
Adds the high-precision position attribute data to a HighPrecisionObject.

Parameters
- object: HighPrecisionObject
  
  HighPrecisionObject which position attribute will be set.
- positions: ArrayLike<number> | ArrayLike<Vector3>
  
  Array of positions.
Returns number

updateHpUniforms

updateHpUniforms(object: HighPrecisionObject, camera: Camera, shaderMaterial: ShaderMaterial): void

- Defined in @here/harp-lines/lib/HighPrecisionUtils.ts:138
Updates the high-precision uniform data of a material used to render a HighPrecisionObject.

Parameters
- object: HighPrecisionObject
  
  HighPrecisionObject used for rendering.
- camera: Camera
  
  Camera used to get the high-precision position.
- shaderMaterial: ShaderMaterial
  
  Material which uniforms will be updated.
Returns void

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