@loaders.gl/3d-tiles/dist/cesium-ion-loader.js

3D Tiles, an open standard for streaming massive heterogeneous 3D geospatial datasets.

// loaders.gl
// SPDX-License-Identifier: MIT
// Copyright vis.gl contributors
import { Tiles3DLoader } from "./tiles-3d-loader.js";
import { getIonTilesetMetadata } from "./lib/ion/ion.js";
async function preload(url, options = {}) {
    options = options['cesium-ion'] || {};
    // @ts-ignore
    const { accessToken } = options;
    // @ts-ignore
    let assetId = options.assetId;
    if (!Number.isFinite(assetId)) {
        const matched = url.match(/\/([0-9]+)\/tileset.json/);
        assetId = matched && matched[1];
    }
    return getIonTilesetMetadata(accessToken, assetId);
}
/**
 * Loader for 3D tiles from Cesium ION
 */
export const CesiumIonLoader = {
    ...Tiles3DLoader,
    id: 'cesium-ion',
    name: 'Cesium Ion',
    // @ts-ignore
    preload,
    parse: async (data, options, context) => {
        options = { ...options };
        options['3d-tiles'] = options['cesium-ion'];
        // @ts-ignore
        options.loader = CesiumIonLoader;
        return Tiles3DLoader.parse(data, options, context); // , loader);
    },
    options: {
        'cesium-ion': {
            ...Tiles3DLoader.options['3d-tiles'],
            accessToken: null
        }
    }
};
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