@openhps/core/dist/esm/three/loaders/TextureLoader.js

Open Hybrid Positioning System - Core component

import { ImageLoader } from './ImageLoader.js';
import { Texture } from '../textures/Texture.js';
import { Loader } from './Loader.js';

/**
 * Class for loading textures. Images are internally
 * loaded via {@link ImageLoader}.
 *
 * ```js
 * const loader = new THREE.TextureLoader();
 * const texture = await loader.loadAsync( 'textures/land_ocean_ice_cloud_2048.jpg' );
 *
 * const material = new THREE.MeshBasicMaterial( { map:texture } );
 * ```
 * Please note that `TextureLoader` has dropped support for progress
 * events in `r84`. For a `TextureLoader` that supports progress events, see
 * [this thread]{@link https://github.com/mrdoob/three.js/issues/10439#issuecomment-293260145}.
 *
 * @augments Loader
 */
class TextureLoader extends Loader {
  /**
   * Constructs a new texture loader.
   *
   * @param {LoadingManager} [manager] - The loading manager.
   */
  constructor(manager) {
    super(manager);
  }

  /**
   * Starts loading from the given URL and pass the fully loaded texture
   * to the `onLoad()` callback. The method also returns a new texture object which can
   * directly be used for material creation. If you do it this way, the texture
   * may pop up in your scene once the respective loading process is finished.
   *
   * @param {string} url - The path/URL of the file to be loaded. This can also be a data URI.
   * @param {function(Texture)} onLoad - Executed when the loading process has been finished.
   * @param {onProgressCallback} onProgress - Unsupported in this loader.
   * @param {onErrorCallback} onError - Executed when errors occur.
   * @return {Texture} The texture.
   */
  load(url, onLoad, onProgress, onError) {
    const texture = new Texture();
    const loader = new ImageLoader(this.manager);
    loader.setCrossOrigin(this.crossOrigin);
    loader.setPath(this.path);
    loader.load(url, function (image) {
      texture.image = image;
      texture.needsUpdate = true;
      if (onLoad !== undefined) {
        onLoad(texture);
      }
    }, onProgress, onError);
    return texture;
  }
}
export { TextureLoader };