53 lines
1.4 KiB
TypeScript
53 lines
1.4 KiB
TypeScript
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import { MappingDatum, Point } from '../../interface';
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import GeometryLabel from './base';
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import { LabelCfg, LabelItem, LabelPointCfg } from './interface';
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/**
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* 极坐标下的图形 label
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*/
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export default class PolarLabel extends GeometryLabel {
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/**
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* @override
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* 获取文本的对齐方式
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* @param point
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*/
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protected getLabelAlign(point: LabelItem): any;
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/**
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* @override
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* 获取 label 的位置
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* @param labelCfg
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* @param mappingData
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* @param index
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*/
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protected getLabelPoint(labelCfg: LabelCfg, mappingData: MappingDatum, index: number): LabelPointCfg;
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/**
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* 获取圆弧的位置
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*/
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protected getArcPoint(mappingData: MappingDatum, index?: number): Point;
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/**
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* 计算坐标线点在极坐标系下角度
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* @param point
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*/
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protected getPointAngle(point: Point): number;
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/**
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* 获取坐标点与圆心形成的圆的位置信息
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* @param angle
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* @param offset
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* @param point
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* @param isLabelEmit
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*/
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protected getCirclePoint(angle: number, offset: number, point: Point, isLabelEmit: boolean): {
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r: number;
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x: number;
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y: number;
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};
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/**
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* 获取 label 的旋转角度
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* @param angle
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* @param offset
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* @param isLabelEmit
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*/
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protected getLabelRotate(angle: number, offset: number, isLabelEmit: boolean): number;
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private getMiddlePoint;
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private isToMiddle;
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}
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