import { OnChanges, OnInit, SimpleChanges } from '@angular/core';
import { ScaleLinear } from 'd3-scale';
import { Tick } from '../../../../bd2-heatmap.dom';
import * as i0 from "@angular/core";
export declare class NumXAxisComponent implements OnInit, OnChanges {
    xScale: ScaleLinear<number, number>;
    xDomain: [number, number];
    yPosition: number;
    top: boolean;
    axisTransform: string;
    x2: number;
    ticks: Tick[];
    constructor();
    trackByIndex(index: number, item: any): number;
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    prepareTicks(xScale: ScaleLinear<number, number>): Tick[];
    calculateTicksPosition(xScale: ScaleLinear<number, number>): any[];
    domainStep(range: number): 6 | 12 | 4 | 24;
    static ɵfac: i0.ɵɵFactoryDeclaration<NumXAxisComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NumXAxisComponent, "[bd2hm-num-x-axis]", never, { "xScale": { "alias": "xScale"; "required": false; }; "xDomain": { "alias": "xDomain"; "required": false; }; "yPosition": { "alias": "yPosition"; "required": false; }; "top": { "alias": "top"; "required": false; }; }, {}, never, never, false, never>;
}