Merge remote-tracking branch 'origin/pet' into pet

src/views/map/index.vue

@@ -1234,7 +1234,7 @@ export default {
           }
           const entity = new Cesium.Entity({
             id: 'trajectory',
-            polyline: { positions, width: 5.0, material: Cesium.Color.RED }
+            polyline: { positions, width: 5.0, material: Cesium.Color.RED , clampToGround:true }
           })
           const collection = new Cesium.CustomDataSource('trajectoryEntityCollection')
           collection.entities.add(entity)
@@ -1472,6 +1472,9 @@ export default {
                 cluster.billboard.show = true
                 cluster.billboard.id = cluster.label.id
                 cluster.billboard.verticalOrigin = Cesium.VerticalOrigin.BOTTOM
+                cluster.billboard.horizontalOrigin = Cesium.HorizontalOrigin.CENTER
+                cluster.billboard.heightReference = Cesium.HeightReference.CLAMP_TO_GROUND
+                cluster.billboard.disableDepthTestDistance = Number.POSITIVE_INFINITY
                 if (clusteredEntities.length >= 100) {
                   cluster.billboard.image = pin100
                 } else if (clusteredEntities.length >= 50) {