import { Point, EdgeArea, TrajectoryArea, TrajectoryPoint, EdgePoint } from "./ImageTracer";
export declare enum Trajectory {
    RIGHT = 0,
    DOWN_RIGHT = 1,
    DOWN = 2,
    DOWN_LEFT = 3,
    LEFT = 4,
    UP_LEFT = 5,
    UP = 6,
    UP_RIGHT = 7,
    NONE = 0
}
export declare enum InterpolationMode {
    OFF = "off",
    INTERPOLATE = "interpolate"
}
export declare class PointInterpolator {
    interpolate(mode: InterpolationMode, paths: EdgeArea[], enhanceRightAngle: boolean): TrajectoryArea[];
    protected interpolatePointsUsingMode(mode: InterpolationMode, edgePoints: EdgePoint[], enhanceRightAngle: boolean): TrajectoryPoint[];
    protected trajectoryPointFromEdgePoint(points: EdgePoint[], pointIx: number): TrajectoryPoint;
    protected buildInterpolatedPoints(edgePoints: EdgePoint[], enhanceRightAngle: boolean): TrajectoryPoint[];
    protected updateLastPointTrajectory(points: TrajectoryPoint[], referencePoint: Point): void;
    protected interpolateNextTwoPoints(points: Point[], pointIx: number): TrajectoryPoint;
    protected isRightAngle(points: Point[], pointIx: number): boolean;
    protected buildCornerPoint(points: Point[], pointIx: number): TrajectoryPoint;
    protected geTrajectory(x1: number, y1: number, x2: number, y2: number): Trajectory;
}
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