import { GeometryObject } from "../../dependencies/conway-geom/index.js";
import { CanonicalMaterial } from "./canonical_material.js";
import { IIndexSetCursor } from "./i_index_set_cursor.js";
import { Model } from "./model.js";
import { ReadonlyUint32Array } from "./readonly_typed_array.js";
import { TriangleElementMap } from "./triangle_element_map.js";
/**
 * A packed mesh that has all the materials, primitives and
 * the mapping back to model elements.
 *
 * This can be considered the reified version of CanonicalGeometry.
 */
export declare class PackedMesh<ModelType extends Model> {
    readonly model: ModelType;
    readonly materials: ReadonlyArray<CanonicalMaterial>;
    readonly primitives: ReadonlyArray<[
        GeometryObject,
        number | undefined
    ]>;
    readonly triangleElementMaps: ReadonlyArray<TriangleElementMap>;
    readonly elementPrimitiveIndex: ReadonlyMap<number, number[]>;
    /**
     * Construct a packed mesh.
     *
     * @param model The model this mesh came from.
     * @param materials The materials array for the packed mesh (referenced
     * by index by primitives)
     * @param primitives The primitives for this mesh (the mesh fragments
     * by material), with the material index being the second item of the tuple.
     * @param triangleElementMaps Triangle element maps (one per primitive,
     * in the same order, to map elements to primitives)
     * @param elementPrimitiveIndex Element primitive index, maps
     * element local ids to the correct primitive.
     */
    constructor(model: ModelType, materials: ReadonlyArray<CanonicalMaterial>, primitives: ReadonlyArray<[
        GeometryObject,
        number | undefined
    ]>, triangleElementMaps: ReadonlyArray<TriangleElementMap>, elementPrimitiveIndex: ReadonlyMap<number, number[]>);
    /**
     * Get triangles from a cursor.
     *
     * @param cursor The cursor to extract triangles for
     * @yields {[number, number, ReadonlyUint32Array]} Returns a tuple containing
     * the local ID of the element, the primitive index, and the triangles.
     *
     * Note - there may be multiple batches of triangles from the same element,
     * because the triangles maybe in different primitives.
     */
    triangles(cursor: IIndexSetCursor): IterableIterator<[
        number,
        number,
        ReadonlyUint32Array
    ]>;
}
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