bug fix

qinbo

2021-11-29 a6a644e94b86e724407724f6b7bc49c1fd22a947

 widgetsTS/widget_search/widget.js

@@ -122,6 +122,7 @@
            var primitive = new mars3d.graphic.PolygonEntity({
                positions: positions,
                style: {
                    opacity:0.3,
                    height: 50,
                    diffHeight: 200,
                    materialType: mars3d.MaterialType.PolyGradient,