88 lines
3.3 KiB
TypeScript
88 lines
3.3 KiB
TypeScript
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export default class LineElement extends Element<import("../types/basic.js").AnyObject, import("../types/basic.js").AnyObject> {
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static id: string;
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/**
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* @type {any}
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*/
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static defaults: any;
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static descriptors: {
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_scriptable: boolean;
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_indexable: (name: any) => boolean;
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};
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constructor(cfg: any);
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animated: boolean;
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options: any;
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_chart: any;
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_loop: any;
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_fullLoop: any;
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_path: any;
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_points: any;
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_segments: import("../helpers/helpers.segment.js").Segment[];
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_decimated: boolean;
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_pointsUpdated: boolean;
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_datasetIndex: any;
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updateControlPoints(chartArea: any, indexAxis: any): void;
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set points(arg: any);
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get points(): any;
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get segments(): import("../helpers/helpers.segment.js").Segment[];
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/**
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* First non-skipped point on this line
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* @returns {PointElement|undefined}
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*/
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first(): PointElement | undefined;
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/**
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* Last non-skipped point on this line
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* @returns {PointElement|undefined}
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*/
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last(): PointElement | undefined;
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/**
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* Interpolate a point in this line at the same value on `property` as
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* the reference `point` provided
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* @param {PointElement} point - the reference point
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* @param {string} property - the property to match on
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* @returns {PointElement|undefined}
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*/
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interpolate(point: PointElement, property: string): PointElement | undefined;
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/**
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* Append a segment of this line to current path.
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* @param {CanvasRenderingContext2D} ctx
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* @param {object} segment
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* @param {number} segment.start - start index of the segment, referring the points array
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* @param {number} segment.end - end index of the segment, referring the points array
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* @param {boolean} segment.loop - indicates that the segment is a loop
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* @param {object} params
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* @param {boolean} params.move - move to starting point (vs line to it)
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* @param {boolean} params.reverse - path the segment from end to start
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* @param {number} params.start - limit segment to points starting from `start` index
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* @param {number} params.end - limit segment to points ending at `start` + `count` index
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* @returns {undefined|boolean} - true if the segment is a full loop (path should be closed)
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*/
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pathSegment(ctx: CanvasRenderingContext2D, segment: {
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start: number;
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end: number;
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loop: boolean;
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}, params: {
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move: boolean;
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reverse: boolean;
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start: number;
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end: number;
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}): undefined | boolean;
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/**
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* Append all segments of this line to current path.
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* @param {CanvasRenderingContext2D|Path2D} ctx
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* @param {number} [start]
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* @param {number} [count]
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* @returns {undefined|boolean} - true if line is a full loop (path should be closed)
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*/
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path(ctx: CanvasRenderingContext2D | Path2D, start?: number, count?: number): undefined | boolean;
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/**
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* Draw
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* @param {CanvasRenderingContext2D} ctx
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* @param {object} chartArea
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* @param {number} [start]
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* @param {number} [count]
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*/
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draw(ctx: CanvasRenderingContext2D, chartArea: object, start?: number, count?: number): void;
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}
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export type PointElement = import('./element.point.js').default;
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import Element from "../core/core.element.js";
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