@ar-js-org/artoolkitplus-ts/src/ARToolKitPlus.ts

Typescript ARToolKitPlus port thanks to Emscripten

import { AbstractARToolKitPlus } from "./abstractions/AbstractARToolKitPlus";
import { ARToolKitPlusLoader } from "./ARToolKitPlusLoader";
export default class ARToolKitPlus extends AbstractARToolKitPlus {
  private artoolkitplus: any;
  static PIXEL_FORMAT: any;
  static MARKER_MODE: any;
  static UNDIST_MODE: any;

  /**
   * Default constructor used internally in the **initAR** static method.
   */
  constructor() {
    super();
  }

  /**
   * Main static method to init the ARToolKitPlus instance.
   * Start from this method your main app, example:
   * ```js
   * import ARToolKitPlus from '../dist/ARToolKitPlus.js'
   *
   * ARToolKitPlus.initAR().then((ar) => {
   *  // your code here...
   * })
   * ```
   * @returns {this}
   */
  static async initAR(): Promise<AbstractARToolKitPlus> {
    const artoolkitPlus = new ARToolKitPlus();
    return await artoolkitPlus.initARTKP();
  }

  /**
   * Convert Model View Matrix to Right Hand Matrix.
   * @param glMatrix {Float64Array}
   * @param glRhMatrix {Float64Array}
   * @param scale {number}
   * @returns {Float64Array} glRhMatrix.
   */
  arglCameraViewRHf(
    glMatrix: Float64Array,
    glRhMatrix?: Float64Array,
    scale?: number
  ): Float64Array {
    let m_modelview;
    if (glRhMatrix == undefined) {
      m_modelview = new Float64Array(16);
    } else {
      m_modelview = glRhMatrix;
    }

    // x
    m_modelview[0] = glMatrix[0];
    m_modelview[4] = glMatrix[4];
    m_modelview[8] = glMatrix[8];
    m_modelview[12] = glMatrix[12];
    // y
    m_modelview[1] = -glMatrix[1];
    m_modelview[5] = -glMatrix[5];
    m_modelview[9] = -glMatrix[9];
    m_modelview[13] = -glMatrix[13];
    // z
    m_modelview[2] = -glMatrix[2];
    m_modelview[6] = -glMatrix[6];
    m_modelview[10] = -glMatrix[10];
    m_modelview[14] = -glMatrix[14];

    // 0 0 0 1
    m_modelview[3] = 0;
    m_modelview[7] = 0;
    m_modelview[11] = 0;
    m_modelview[15] = 1;

    if (scale != undefined && scale !== 0.0) {
      m_modelview[12] *= scale;
      m_modelview[13] *= scale;
      m_modelview[14] *= scale;
    }

    glRhMatrix = m_modelview;

    return glRhMatrix;
  }

  private async initARTKP() {
    this.artoolkitplus = await new ARToolKitPlusLoader().init();

    ARToolKitPlus.MARKER_MODE = this.artoolkitplus.MARKER_MODE;
    ARToolKitPlus.PIXEL_FORMAT = this.artoolkitplus.PIXEL_FORMAT;
    ARToolKitPlus.UNDIST_MODE = this.artoolkitplus.UNDIST_MODE;

    return this;
  }
}