@antv/g2/esm/interaction/action/mask/circle.js

the Grammar of Graphics in Javascript

import { __extends } from "tslib";
import { last } from '@antv/util';
import { distance } from '../util';
import MaskBase from './base';
/**
 * @ignore
 * 圆形辅助框 Action
 */
var CircleMask = /** @class */ (function (_super) {
    __extends(CircleMask, _super);
    function CircleMask() {
        var _this = _super !== null && _super.apply(this, arguments) || this;
        _this.shapeType = 'circle';
        return _this;
    }
    CircleMask.prototype.getMaskAttrs = function () {
        var points = this.points;
        var currentPoint = last(this.points);
        var r = 0;
        var x = 0;
        var y = 0;
        if (points.length) {
            var first = points[0];
            r = distance(first, currentPoint) / 2;
            x = (currentPoint.x + first.x) / 2;
            y = (currentPoint.y + first.y) / 2;
        }
        return {
            x: x,
            y: y,
            r: r,
        };
    };
    return CircleMask;
}(MaskBase));
export default CircleMask;
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