Method _getSpriteDatas

src/common/mapping/WebMapV3.js:746–767

* @private * @function WebMapV3.prototype._getSpriteDatas * @description 获取雪碧图信息。

()

   * @description 获取雪碧图信息。
   */
  _getSpriteDatas() {
    const sprite = this._sprite;
    if (!sprite) {
      return;
    }

    const spriteUrls = [];
    if (typeof sprite === 'string') {
      spriteUrls.push(sprite);
    } else if (typeof sprite === 'object') {
      Object.keys(sprite).forEach((sourceId) => {
        spriteUrls.push(sprite[sourceId]);
      });
    }

    return Promise.all(spriteUrls.map((url) => this._getSpriteData(url))).then((allResults) => {
      allResults.forEach((result) => {
        this._spriteDatas = {...this._spriteDatas, ...result};
      });
      return;
    });
  }

  _getSpriteData(sprite) {
    const url = sprite.replace(/.+(web\/maps\/.+)/, `${this.options.server}$1`);