@orca-fe/x-map/esm/layers/SvgLayer.js

import { SVG_OFFSET_TOP } from '../defs';
import AbstractLayer from './AbstractLayer';
const svgNS = 'http://www.w3.org/2000/svg';
export default class SvgLayer extends AbstractLayer {
    constructor(options = {}) {
        super();
        const dom = document.createElementNS(svgNS, 'svg');
        dom.style.position = 'absolute';
        dom.style.top = `${SVG_OFFSET_TOP}px`;
        dom.style.left = '0';
        dom.style.overflow = 'visible';
        this.dom = dom;
    }
    add(marker) {
        this.markers.add(marker);
        this.dom.appendChild(marker.dom);
        marker.setLayer(this);
    }
    remove(marker) {
        this.markers.delete(marker);
        if (this.dom.contains(marker.dom)) {
            this.dom.removeChild(marker.dom);
        }
        marker.setLayer(undefined);
    }
    getSize() {
        const { clientWidth, clientHeight } = this.dom;
        return [clientWidth, clientHeight];
    }
}