import type { OutlierStrategy, PlotDrawFrame, PlotDrawScaleConfig } from "./types";
export declare const CANPLOT_LAYER: {
    readonly TOP: 400;
    readonly MIDDLE: 300;
    readonly BOTTOM: 200;
    readonly BACKGROUND: 100;
};
export declare class FrameDrawer {
    private _frame;
    _updateFrame(frame: PlotDrawFrame): void;
    get frame(): PlotDrawFrame;
    get ctx(): CanvasRenderingContext2D;
    clampXPosToChartArea: <T extends number | null>(x: T, space?: "canvas" | "css") => T | number;
    clampYPosToChartArea: <T extends number | null>(y: T, space?: "canvas" | "css") => T | number;
    valToPos: (value: number, scaleId: string, space?: "canvas" | "css") => number | null;
    valToPxDistance: (value: number, scaleId: string, space?: "canvas" | "css") => number | null;
    valFits: (value: number, scaleId: string) => boolean;
    getScale: (scaleId: string) => PlotDrawScaleConfig | null;
    valToPosWithStrategy: (value: number, scaleId: string, space: "canvas" | "css" | undefined, strategy: OutlierStrategy) => number | null;
}
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