@loaders.gl/geoarrow/dist/mesharrow/mesh-accessors.js

GeoArrow columnar geometry encoding and decoding

// loaders.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
import { getFixedSizeListSize } from "./arrow-fixed-size-list-utils.js";
export function getSizeAndValueFromMeshArrowVector(attributeVector) {
    const size = getFixedSizeListSize(attributeVector);
    const typedArrays = getTypedArraysFromMeshArrowVector(attributeVector);
    return { size, value: typedArrays[0] };
}
export function getTypedArraysFromMeshArrowVector(attributeVector) {
    const typedArrays = [];
    for (const attributeData of attributeVector.data) {
        const valueData = attributeData?.children[0];
        const typedArray = valueData.values;
        typedArrays.push(typedArray);
    }
    return typedArrays;
}