@loaders.gl/3d-tiles
Version:
3D Tiles, an open standard for streaming massive heterogeneous 3D geospatial datasets.
30 lines • 1.35 kB
JavaScript
// loaders.gl
// SPDX-License-Identifier: MIT AND Apache-2.0
// Copyright vis.gl contributors
// This file is derived from the Cesium code base under Apache 2 license
// See LICENSE.md and https://github.com/AnalyticalGraphicsInc/cesium/blob/master/LICENSE.md
import { assert } from '@loaders.gl/loader-utils';
// Decode the JSON binary array into clear text
export function getStringFromArrayBuffer(arrayBuffer, byteOffset, byteLength) {
assert(arrayBuffer instanceof ArrayBuffer);
const textDecoder = new TextDecoder('utf8');
const typedArray = new Uint8Array(arrayBuffer, byteOffset, byteLength);
const string = textDecoder.decode(typedArray);
return string;
}
// Decode the JSON binary array into clear text
export function getStringFromTypedArray(typedArray) {
assert(ArrayBuffer.isView(typedArray));
const textDecoder = new TextDecoder('utf8');
const string = textDecoder.decode(typedArray);
return string;
}
export function getMagicString(arrayBuffer, byteOffset = 0) {
const dataView = new DataView(arrayBuffer);
return `\
${String.fromCharCode(dataView.getUint8(byteOffset + 0))}\
${String.fromCharCode(dataView.getUint8(byteOffset + 1))}\
${String.fromCharCode(dataView.getUint8(byteOffset + 2))}\
${String.fromCharCode(dataView.getUint8(byteOffset + 3))}`;
}
//# sourceMappingURL=parse-utils.js.map