@loaders.gl/draco/dist/lib/draco-types.d.ts

Framework-independent loader and writer for Draco compressed meshes and point clouds

import { Mesh } from '@loaders.gl/schema';
export type DracoMetadataEntry = {
    int: number;
    string: string;
    double: number;
    intArray: Int32Array;
};
/** For attributes that have not been fully decompressed */
export type DracoQuantizationTransform = {
    quantization_bits?: number;
    range?: number;
    min_values?: Float32Array;
};
/** For attributes that have not been fully decompressed */
export type DracoOctahedronTransform = {
    quantization_bits?: number;
};
/** Draco attribute fields */
export type DracoAttribute = {
    unique_id: number;
    num_components: number;
    attribute_type: number;
    data_type: number;
    byte_offset: number;
    byte_stride: number;
    normalized: boolean;
    name?: string;
    quantization_transform?: DracoQuantizationTransform;
    octahedron_transform?: DracoOctahedronTransform;
    metadata: {
        [key: string]: DracoMetadataEntry;
    };
    attribute_index: number;
};
/**
 * Draco format specific data
 * The `data.loaderData` field will have this layout when `data.loader === 'draco'`.
 * @todo Metadata should also be available in normalized form in a standard `Schema`.
 */
export type DracoLoaderData = {
    geometry_type: number;
    num_attributes: number;
    num_points: number;
    num_faces: number;
    metadata: {
        [entry: string]: DracoMetadataEntry;
    };
    attributes: {
        [unique_id: number]: DracoAttribute;
    };
};
/**
 * loaders.gl Mesh with Draco specific data
 */
export type DracoMesh = Mesh & {
    loader: 'draco';
    loaderData: DracoLoaderData;
};
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