export interface AdaptiveIsolineLevelOptions {
    levels?: number;
    validMask?: ArrayLike<number> | null;
    /** Robust value range. Default `[0.02, 0.98]`. */
    outlierQuantiles?: [number, number];
    /** Candidate pool size as a multiple of requested levels. Default 10, range 5..20. */
    candidateMultiplier?: number;
    /** Coverage influence radius in evaluation-zone cells. Default 1. */
    coverageRadius?: number;
    /** Reject candidate contours crossing fewer cells than this. Default 4. */
    minCandidateCells?: number;
    coverageWeight?: number;
    rangeWeight?: number;
    redundancyWeight?: number;
    fragmentWeight?: number;
}
export interface AdaptiveIsolineLevelMetric {
    level: number;
    gain: number;
    coverage: number;
    redundancy: number;
    lengthCells: number;
    fragmentation: number;
}
export interface AdaptiveIsolineLevelSelection {
    thresholds: number[];
    selected: AdaptiveIsolineLevelMetric[];
    range: [number, number];
    coverage: number;
    uniformCoverage: number;
    redundancy: number;
    /** Variance of selected-line density across valid evaluation zones. */
    distributionVariance: number;
    /** Mean fraction of isolated/noisy preview fragments. */
    noiseFraction: number;
    /** Integrated coverage/range/redundancy/noise/uniformity score. */
    score: number;
    validZones: number;
    candidateCount: number;
}
/** Lazy unified-pipeline entry: select levels, build WASM contours, enrich/filter output. */
export declare function buildAdaptiveIsolinesFromField(field: HeatFieldGrid, options?: HeatIsolineBuildOptions): HeatIsolineResult;
/**
 * Select contour values by spatial utility rather than equal numeric spacing.
 * Preview geometry is evaluated in a compact zoning grid; final geometry is
 * still produced by the WASM marching/stitching kernel.
 */
export declare function selectAdaptiveIsolineLevels(grid: Float32Array, cols: number, rows: number, options?: AdaptiveIsolineLevelOptions): AdaptiveIsolineLevelSelection;
import type { HeatFieldGrid } from "./heat-field.js";
import { type HeatIsolineBuildOptions, type HeatIsolineResult } from "./heat-isolines.js";
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