import { CharInfo, Coord, ScaleLinear, StringKeyValMap, TextMeasurer, VectorMap } from './models/types';
export declare type StyleResolver = (styleProp: string, styleVal: string, context: CanvasRenderingContext2D) => void;
export declare const _AXIS_OFFSET_RADIANS: number;
export declare function canvasContextTextMeasurer(context: CanvasRenderingContext2D): TextMeasurer;
export declare function scaleLinear(): ScaleLinear<number, number>;
export declare function parseStyle(style: string): StringKeyValMap;
export declare function toCamelCaseKeys(pairs: StringKeyValMap): StringKeyValMap;
export declare function updateContextStyle(context: CanvasRenderingContext2D, styles: StringKeyValMap, resolve?: StyleResolver): void;
export declare function resolveTextStyle(styleProp: string, styleVal: string, context: CanvasRenderingContext2D): void;
export declare function toRadians(degrees: number): number;
export declare function toDegrees(radians: number): number;
export declare function toCartesianCoords(center: Coord, radius: number, angleInRadians: number): Coord;
export declare function withAxisOffset(angleInRadians: number): number;
export declare function angleRadInBetweenSides(adjacentSideA: number, adjacentSideB: number, oppositeSide: number): number;
export declare function arcLength(radius: number, angleInRad: number): number;
export declare function arcAngleRad(radius: number, lengthOfArc: number): number;
export declare function deepClone<T extends object>(target: T): T;
export declare function squared(value: number): number;
export declare function textContentWidth(symbols: string[], charInfo: CharInfo): number;
export declare function withDefaultViewBoxIfNotPresent(vectorMap: VectorMap): VectorMap;
export declare function arrayOrEmpty<T>(array: T[] | undefined): T[];
export declare function createCanvas(): HTMLCanvasElement;