import { CellComplex, type CellGroup, type SourceCellIdN, type SourceCellReferenceN } from '@holotope/core';
export interface SimplexMassElementContextN {
    readonly sourceCellIndex: number;
    readonly sourceVertexIndices: readonly number[];
    readonly sourceId: SourceCellIdN;
    readonly simplexDimension: number;
    readonly restMeasure: number;
}
export type SimplexMassDensityN = number | ((element: SimplexMassElementContextN) => number);
export interface LumpSimplexMassesNOptions {
    readonly source: CellComplex;
    readonly simplexGroup: CellGroup;
    readonly density: SimplexMassDensityN;
}
export interface SimplexLumpedMassElementN extends SimplexMassElementContextN {
    readonly sourceReference: SourceCellReferenceN;
    readonly density: number;
    readonly mass: number;
    readonly vertexMassShare: number;
}
export interface SimplexLumpedMassesN {
    readonly dimension: number;
    readonly simplexDimension: number;
    readonly source: CellComplex;
    readonly sourceSimplexGroup: CellGroup;
    readonly elements: readonly SimplexLumpedMassElementN[];
    readonly vertexMasses: Float64Array;
    readonly totalElementMass: number;
    readonly totalVertexMass: number;
    readonly massResidual: number;
    readonly unusedVertexCount: number;
}
/** Equal-vertex lumping of density times intrinsic simplex rest measure. */
export declare function lumpSimplexMassesN(options: LumpSimplexMassesNOptions): SimplexLumpedMassesN;
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