import { Tensor2D } from '@tensorflow/tfjs';
export interface Surface {
    container: HTMLElement;
    label: HTMLElement;
    drawArea: HTMLElement;
}
export interface SurfaceInfo {
    name: string;
    tab?: string;
    styles?: StyleOptions;
}
export interface SurfaceInfoStrict extends SurfaceInfo {
    name: string;
    tab: string;
    styles?: StyleOptions;
}
export declare type StyleOptions = Partial<CSSOptions>;
export interface CSSOptions {
    width: string;
    height: string;
    maxWidth: string;
    maxHeight: string;
}
export declare type Drawable = HTMLElement | Surface | SurfaceInfo | {
    drawArea: HTMLElement;
};
export declare function isSurfaceInfo(drawable: Drawable): drawable is SurfaceInfo;
export declare function isSurface(drawable: Drawable): drawable is Surface;
export interface VisOptions {
    width?: number;
    height?: number;
    xLabel?: string;
    yLabel?: string;
    xType?: 'quantitative' | 'ordinal' | 'nominal';
    yType?: 'quantitative' | 'ordinal' | 'nominal';
    fontSize?: number;
}
export interface XYPlotOptions extends VisOptions {
    xAxisDomain?: [number, number];
    yAxisDomain?: [number, number];
    zoomToFit?: boolean;
}
export declare type HistogramOpts = VisOptions & {
    stats?: HistogramStats | false;
    maxBins?: number;
};
export interface HistogramStats {
    numVals?: number;
    min?: number;
    max?: number;
    numNans?: number;
    numZeros?: number;
    numInfs?: number;
}
export declare type TypedArray = Int8Array | Uint8Array | Int16Array | Uint16Array | Int32Array | Uint32Array | Uint8ClampedArray | Float32Array | Float64Array;
export interface ConfusionMatrixData {
    values: number[][];
    tickLabels?: string[];
}
export declare type Point2D = {
    x: number;
    y: number;
};
export interface HeatmapData {
    values: number[][] | Tensor2D;
    xTickLabels?: string[];
    yTickLabels?: string[];
}
export declare type NamedColorMap = 'greyscale' | 'viridis' | 'blues';
export interface HeatmapOptions extends VisOptions {
    colorMap?: NamedColorMap;
    domain?: number[];
}