fix:测距测面无效无效问题解决

src/views/components/tools/index.vue

@@ -16,6 +16,7 @@
 </template>
 
 <script>
+import * as mars3d from "mars3d"
 import Controls from './controls/control.vue'
 export default {
   name: 'MapTools',
@@ -39,7 +40,7 @@ export default {
   mounted() {
     this.$globalEventBus.$on('loadMap', () => {
       console.info('我加入')
-      this.distanceMeasure = new this.mars3d.thing.Measure({
+      this.distanceMeasure = new mars3d.thing.Measure({
         label: {
           color: '#ffffff',
           font_family: '楷体',