zoom-image-data

zoom-image-data

Installation

Install with npm:

npm install zoom-image-data

class ZoomImageData

Constructor

new ZoomImageData(param: param) => ZoomImageData

• param
  • inData: ArrayBuffer Input Data
  • inw: number Width of input data
  • inh: number Height of input data
  • outData: ArrayBuffer Output Data
  • outw: number Width of output data
  • outh: number Height of output data
  • cellRatio?: number (defalut: 1) Ratio = cellW / cellH
  • cellWH?: number (defalut: 10) Base cell size
  • splitCell?: boolean (defalut: false) Split Cell
  • splitCellSize?: number (defalut: 2) Split Cell Size

Instance Function

.update() Update outputData.

.translate(dx: number, dy: number, silent?: boolean) Translate on outdata.

• param
  • silent (optional) Defaults to false, Whether update outData.

.zoom(cx: number, cy: number, ratio: number, silent?: boolean) Scale ratio multiple at position(cx,cy) on outdata

.resize(silent?: boolean)

.updateMatrix(scale: number, dx: number, dy: number, silent?: boolean) Update the transformation matrix.

.inCoorIsIn(x: number, y: number): boolean

.outCoorIsIn(x: number, y: number): boolean

.transInToOut(coors: number[])

.transOutToIn(coors: number[])