Method constructor

src/openlayers/overlay/Graphic.js:61–254

(options)

 */
export class Graphic extends ImageCanvasSource {
    constructor(options) {
        super({
            attributions: options.attributions,
            canvasFunction: canvasFunctionInternal_,
            logo: Util.getOlVersion() === '4' ? options.logo : null,
            projection: options.projection,
            ratio: options.ratio,
            resolutions: options.resolutions,
            state: options.state
        });
        this.graphics = [].concat(options.graphics);
        this.map = options.map;
        CommonUtil.extend(this, options);
        this.render = options.render || Renderer[0];
        if (!Util.supportWebGL2()) {
            this.render = Renderer[0];
        }
        this.highLightStyle = options.highLightStyle;
        //是否支持高亮，默认支持
        this.isHighLight = typeof options.isHighLight === 'undefined' ? true : options.isHighLight;
        this.hitGraphicLayer = null;
        this._forEachFeatureAtCoordinate = _forEachFeatureAtCoordinate;
        this._options = options;
        const me = this;
        if (options.onClick) {
            me.map.on('click', function(e) {
              if (me.isDeckGLRender) {
                const params = me.renderer.deckGL.pickObject({ x: e.pixel[0], y: e.pixel[1] });
                options.onClick(params);
                return;
              }
              const graphic = me.findGraphicByPixel(e, me);
              if (graphic) {
                  options.onClick(graphic, e);
                  if (me.isHighLight) {
                    me._highLight(
                        graphic.getGeometry().getCoordinates(),
                        new Style({
                            image: graphic.getStyle()
                        }).getImage(),
                        graphic,
                        e.pixel
                    );
                  }
                
              }
            });
        }
          me.map.on('pointermove', function(e) {
            if (me.isDeckGLRender) {
              const params = me.renderer.deckGL.pickObject({ x: e.pixel[0], y: e.pixel[1] });
              if (options.onHover) {
                  options.onHover(params);
              }
            }
          });
        //eslint-disable-next-line no-unused-vars
        function canvasFunctionInternal_(extent, resolution, pixelRatio, size, projection) {