import Scale from '../scale/Scale.js';
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import { AxisBaseModel } from './AxisBaseModel.js';
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import { ScaleDataValue } from '../util/types.js';
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export interface ScaleRawExtentResult {
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readonly min: number;
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readonly max: number;
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readonly minFixed: boolean;
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readonly maxFixed: boolean;
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readonly isBlank: boolean;
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}
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export declare class ScaleRawExtentInfo {
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private _needCrossZero;
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private _isOrdinal;
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private _axisDataLen;
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private _boundaryGapInner;
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private _modelMinRaw;
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private _modelMaxRaw;
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private _modelMinNum;
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private _modelMaxNum;
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private _dataMin;
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private _dataMax;
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private _determinedMin;
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private _determinedMax;
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readonly frozen: boolean;
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constructor(scale: Scale, model: AxisBaseModel, originalExtent: number[]);
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/**
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* Parameters depending on ouside (like model, user callback)
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* are prepared and fixed here.
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*/
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private _prepareParams;
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/**
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* Calculate extent by prepared parameters.
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* This method has no external dependency and can be called duplicatedly,
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* getting the same result.
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* If parameters changed, should call this method to recalcuate.
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*/
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calculate(): ScaleRawExtentResult;
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modifyDataMinMax(minMaxName: 'min' | 'max', val: number): void;
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setDeterminedMinMax(minMaxName: 'min' | 'max', val: number): void;
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freeze(): void;
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}
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/**
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* Get scale min max and related info only depends on model settings.
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* This method can be called after coordinate system created.
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* For example, in data processing stage.
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*
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* Scale extent info probably be required multiple times during a workflow.
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* For example:
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* (1) `dataZoom` depends it to get the axis extent in "100%" state.
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* (2) `processor/extentCalculator` depends it to make sure whether axis extent is specified.
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* (3) `coordSys.update` use it to finally decide the scale extent.
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* But the callback of `min`/`max` should not be called multiple times.
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* The code below should not be implemented repeatedly either.
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* So we cache the result in the scale instance, which will be recreated at the begining
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* of the workflow (because `scale` instance will be recreated each round of the workflow).
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*/
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export declare function ensureScaleRawExtentInfo(scale: Scale, model: AxisBaseModel, originalExtent: number[]): ScaleRawExtentInfo;
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export declare function parseAxisModelMinMax(scale: Scale, minMax: ScaleDataValue): number;
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