@nativescript-community/ui-chart/highlight/ChartHighlighter.d.ts

A powerful chart / graph plugin, supporting line, bar, pie, radar, bubble, and candlestick charts as well as scaling, panning and animations.

import { BarLineScatterCandleBubbleDataProvider } from '../interfaces/dataprovider/BarLineScatterCandleBubbleDataProvider';
import { IHighlighter } from './IHighlighter';
import { Highlight } from './Highlight';
import { AxisDependency } from '../components/YAxis';
import { IDataSet } from '../interfaces/datasets/IDataSet';
import { Entry } from '../data/Entry';
export declare class ChartHighlighter<T extends BarLineScatterCandleBubbleDataProvider> implements IHighlighter {
    /**
     * instance of the data-provider
     */
    protected mChart: T;
    /**
     * buffer for storing previously highlighted values
     */
    protected mHighlightBuffer: Highlight[];
    constructor(chart: T);
    getHighlight(x: any, y: any): Highlight<Entry>[];
    /**
     * Returns a recyclable MPPointD instance.
     * Returns the corresponding xPos for a given touch-position in pixels.
     *
     * @param x
     * @param y
     * @return
     */
    protected getValsForTouch(x: any, y: any): any;
    /**
     * Returns the corresponding Highlight for a given xVal and x- and y-touch position in pixels.
     *
     * @param xVal
     * @param x
     * @param y
     * @return
     */
    protected getHighlightForX(xVal: any, x: any, y: any): Highlight<Entry>[];
    /**
     * Returns the minimum distance from a touch value (in pixels) to the
     * closest value (in pixels) that is displayed in the chart.
     *
     * @param closestValues
     * @param pos
     * @param axis
     * @return
     */
    protected getMinimumDistance(closestValues: Highlight[], pos: any, axis: any): number;
    protected getHighlightPos(h: Highlight): number;
    protected getChartData(): import("../data/BarLineScatterCandleBubbleData").BarLineScatterCandleBubbleData<any, any>;
    /**
     * Returns a list of Highlight objects representing the entries closest to the given xVal.
     * The returned list contains two objects per DataSet (closest rounding up, closest rounding down).
     *
     * @param xVal the transformed x-value of the x-touch position
     * @return
     */
    getHighlightsAtXValue(xVal: any, x?: any, y?: any): Highlight<Entry>[];
    /**
     * An array of `Highlight` objects corresponding to the selected xValue and dataSetIndex.
     *
     * @param set
     * @param dataSetIndex
     * @param xVal
     * @param rounding
     * @return
     */
    protected buildHighlights(set: IDataSet<Entry>, dataSetIndex: any, touchX: any, touchY: any, xVal: any, rounding: any): Highlight<Entry>[];
    /**
     * Returns the Highlight of the DataSet that contains the closest value on the
     * y-axis.
     *
     * @param closestValues        contains two Highlight objects per DataSet closest to the selected x-position (determined by
     *                             rounding up an down)
     * @param x
     * @param y
     * @param minSelectionDistance
     * @param axis                 the closest axis
     * @return
     */
    getClosestHighlightByPixel(closestValues: Highlight[], x: number, y: number, minSelectionDistance: number, axis?: AxisDependency): Highlight<Entry>;
    /**
     * Returns sorted highlights based on distance to touch x,y
     *
     * @param closestValues        contains two Highlight objects per DataSet closest to the selected x-position (determined by
     *                             rounding up an down)
     * @param x
     * @param y
     * @param minSelectionDistance
     * @param axis                 the closest axis
     * @return
     */
    sortedHighlights(closestValues: Highlight[], x: number, y: number, minSelectionDistance: number, axis?: AxisDependency): Highlight<Entry>[];
    /**
     * Calculates the distance between the two given points.
     *
     * @param x1
     * @param y1
     * @param x2
     * @param y2
     * @return
     */
    protected getDistance(x1: number, y1: number, x2: number, y2: number): number;
    protected getData(): import("../data/BarLineScatterCandleBubbleData").BarLineScatterCandleBubbleData<any, any>;
}