import type { ColumnInfo, ZID, MeasurementVar } from "./gef-schemas.js";
export type CptRow = Record<string, number | boolean | string | null | undefined> & {
    preExcavatedDepth: number;
    isVoid?: boolean;
    comment?: string;
};
/**
 * Add computed depth columns to GEF data
 *
 * Adds:
 * - trueDepth: Inclination-corrected depth (positive, increasing down)
 * - elevation: Height relative to datum like NAP (can be negative)
 *
 * Handles pre-excavated depth (MEASUREMENTVAR 13) which indicates
 * soil was removed before testing, so first measurements start at that depth.
 */
export declare function addComputedDepthColumns(data: Array<Record<string, number>>, columnInfo: Array<ColumnInfo>, zid: ZID | undefined, measurementVars: Array<MeasurementVar> | undefined): Array<CptRow>;
//# sourceMappingURL=depth-correction.d.ts.map