import type { SkPath } from "@shopify/react-native-skia";
/**
 * Rounds a number to a specified precision.
 *
 * @param value The value to round
 * @param precision The precision to round the value to. Defaults to 15.
 * @returns The rounded value
 */
export declare const round: (value: number, precision?: number) => number;
/**
 * Given a path and an x value, gets the closest x and y values on the path for the x value, and
 * the index of the x value in the path.
 * @param path The path to get the x and y values from
 * @param x The raw x value of the gesture
 * @returns A tuple containing the x, y, and index values
 */
export declare const getClosestPointForX: (path: SkPath, x: number) => [number, number, number];
export interface ComputePathProps {
    width: number;
    height: number;
    points: [number, number][];
    cursorRadius?: number;
    minValue: number;
    maxValue: number;
    minTimestamp: number;
    maxTimestamp: number;
    curveType: "linear";
}
/**
 * Computes the path of the chart based on the points array. If the points array is empty, a
 * horizontal straight line across the center of the chart is returned.
 * @param param0
 * @returns
 */
export declare const computePath: ({ width, height, points, cursorRadius, minTimestamp, maxTimestamp, minValue, maxValue, }: ComputePathProps) => SkPath;
/**
 * Computes the data needed to render the graph.
 *
 * @param points The points to render on the graph
 * @returns The data used by the graph
 */
export declare const computeGraphData: (points: [number, number][]) => {
    points: [number, number][];
    minTimestamp: number;
    maxTimestamp: number;
    minValue: number;
    minValueIndex: number;
    minValueXProportion: number;
    maxValue: number;
    maxValueIndex: number;
    maxValueXProportion: number;
};
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