let filterLayer = window.viewer.imageryLayers.addImageryProvider(new Cesium.SuperMapImageryProvider({
url:this.$mapUrl + '/iserver/services/map-DaHaiTuoXiang/rest/maps/大海陀乡@dx',
}));
//filterLayer.transperantBackColor = Cesium.Color.fromCssColorString('#FFFFFF');
//filterLayer.transperantBackColorTolerance = Number(0.0);
filterLayer.transperantBackColor= Cesium.Color.fromCssColorString('#ffffff');
filterLayer.transperantBackColorTolerance = Number(0.1); //去黑边
我这是有白边 这样没有效果是为什么