Class ColorTable

constructor

• new ColorTable(sizefield: number): ColorTable

  Parameters

  • sizefield: number

  Returns ColorTable

Static ReadonlyMIN_SIZEFIELD

Static ReadonlyMAX_SIZEFIELD

Readonlysizefield

Readonlycolors

ordered

StaticcreateQuantized

• createQuantized(
      reducer: ColorReducer,
      sizefield: number,
      colors: ImageData | CouldBeIterable<number> | ColorArrays,
      allowSmallerSizefield?: boolean,
  ): ColorTable

  Parameters

  • reducer: ColorReducer
  • sizefield: number
  • colors: ImageData | CouldBeIterable<number> | ColorArrays
  • allowSmallerSizefield: boolean = false

  Returns ColorTable

StaticcreateGreyscale

• createGreyscale(sizefield: number): ColorTable

  Creates a color table filled with colors ranging from black to white.

  Parameters

  • sizefield: number

  Returns ColorTable

StaticcreateEvenlyDistributed

• createEvenlyDistributed(sizefield: number): ColorTable

  Creates a color table filled with colors sampled along a cubic lattice from the RGB cube. Note that this implies a cubic number of colors, so the table won't be completely filled.

  Parameters

  • sizefield: number

  Returns ColorTable

StaticsizefieldToSize

• sizefieldToSize(sizefield: number): number

  Converts a valid sizefield to an actual table size.

  Parameters

  • sizefield: number

  Returns number

StaticdesiredSizeToSizefield

• desiredSizeToSizefield(desiredSize: number): number | undefined

  Returns the smallest sizefield that encodes a size of at least desiredSize, or undefined if no sizefield can provide a size big enough.

  Parameters

  • desiredSize: number

    Number of colors the color table should be able to hold.

  Returns number | undefined

getClosestColorIndex

• getClosestColorIndex(target: number): number

  Gets the index of the color that has the lowest distance to the target.

  Parameters

  • target: number

  Returns number

emit

• emit(vec: ByteVector): void

  Emits this table's color data.

  Parameters

  • vec: ByteVector

  Returns void