import { NumberRange } from "../../../Core/NumberRange"; import { IndexCalculator, TSciChart } from "../../../types/TSciChart"; import { CoordinateCalculatorBase } from "./CoordinateCalculatorBase"; /** * Provides an implementation of Flipped Index {@link CoordinateCalculatorBase | Coordinate Calculator} which transforms * numeric data-values to pixel coordinates and vice versa using base values. * @remarks * SciChart's {@link https://www.scichart.com/javascript-chart-features | JavaScript Charts} perform conversion operations between * data-coordinates for all drawing and axis measurements. * * You can fetch a CoordinateCalculator instance by calling {@link AxisCore.getCurrentCoordinateCalculator}. This will return a unique calculator * for the current draw pass. * * You can convert pixel to data-coordinates and back by using the following code: * ```ts * const axis: AxisCore; * const calc = axis.getCurrentCoordinateCalculator(); * * const pixel = calc.getCoordinate(1.23); // Gets the pixel coordinate for data-value 1.23 * const dataValue = cald.getDataValue(pixel); // Performs the inverse operation to get data-value * ``` * * Use the Coordinate calculators when drawing, placing markers, annotations or if you want to place a tooltip over the chart. */ export declare class FlippedIndexCoordinateCalculator extends CoordinateCalculatorBase { private indexCalculator; private indexRange; private dimensionOverMaxMinusMin; private minEdgeCoord; /** * Creates an instance of IndexCoordinateCalculator * @param webAssemblyContext The {@link TSciChart | SciChart 2D WebAssembly Context} or {@link TSciChart2D | SciChart 2D WebAssembly Context} * @param indexCalculator The index calculator, it is used to set base values * @param viewportDimension The size of the associated {@link AxisCore | Axis} at the time of drawing * @param visibleMin The {@link AxisCore.visibleRange}.min at the time of drawing * @param visibleMax The {@link AxisCore.visibleRange}.max at the time of drawing * @param indexMin The minimal visible index * @param indexMax The maximum visible index * @param offset A constant pixel offset used in coordinate calculations * @param viewportOffset */ constructor(webAssemblyContext: TSciChart, indexCalculator: IndexCalculator, viewportDimension: number, visibleMin: number, visibleMax: number, indexMin: number, indexMax: number, offset?: number, viewportOffset?: number); /** @inheritDoc */ getCoordinate(dataValue: number): number; /** @inheritDoc */ getDataValue(coordinate: number): number; /** @inheritDoc */ translateBy(pixels: number, range: NumberRange): NumberRange; transformIndexToData(index: number): number; transformDataToIndex(dataValue: number): number; /** @inheritDoc */ zoomTranslateBy(minFraction: number, maxFraction: number, inputRange: NumberRange): NumberRange; }