export interface ThresholdBandGeometry {
    innerRadius: number;
    outerRadius: number;
    midRadius: number;
    gap: number;
}
/**
 * Computes the geometry of the threshold band arc drawn just inside the gauge arc.
 *
 * All visual parameters (offset from arc, gap between segments, band thickness)
 * scale linearly with the arc width so the band looks proportional at any size.
 */
export declare const computeThresholdBandGeometry: (arcInnerRadius: number, arcOuterRadius: number) => ThresholdBandGeometry;
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