配置标记的海拔高度

请选择平台： Android iOS

3D 地图上的标记

您可以通过将标记的 altitudeMode 属性设置为以下某个值来设置标记的海拔高度：

  • ABSOLUTE
  • RELATIVE_TO_GROUND
  • CLAMP_TO_GROUND
  • RELATIVE_TO_MESH

以下代码示例演示了如何使用每种方法。如需使用此代码示例，请按照设置和向应用添加 3D 地图中的说明，设置包含基本 3D 地图的 Android Studio 项目。然后，将以下代码添加到 MainActivity.kt 文件中：

  // Add imports
  import com.google.android.gms.maps3d.model.latLngAltitude
  
  ...
  
  // Add to the onMap3DViewReady method, after the googleMap3D object has been initialized
  googleMap3D.setMapMode(Map3DMode.SATELLITE)
  
  googleMap3D.setCamera(
      camera {
          center = latLngAltitude {
              latitude = 52.51974795
              longitude = 13.40715553
              altitude = 150.0
          }
          heading = 252.7
          tilt = 79.0
          range = 1500.0
      }
  )
  
  
  // Marker 1: Absolute
  googleMap3D.addMarker(markerOptions {
      position = latLngAltitude {
          latitude = 52.519605780912585
          longitude = 13.406867190588198
          altitude = 150.0
      }
      label = "Absolute (150m)"
      altitudeMode = AltitudeMode.ABSOLUTE
      isExtruded = true
      isDrawnWhenOccluded = true
      collisionBehavior = CollisionBehavior.REQUIRED_AND_HIDES_OPTIONAL
  })
  
  // Marker 2: Relative to Ground
  googleMap3D.addMarker(markerOptions {
      position = latLngAltitude {
          latitude = 52.519882191069016
          longitude = 13.407410777254293
          altitude = 50.0
      }
      label = "Relative to Ground (50m)"
      altitudeMode = AltitudeMode.RELATIVE_TO_GROUND
      isExtruded = true
      isDrawnWhenOccluded = true
  })
  
  // Marker 3: Clamped to Ground
  googleMap3D.addMarker(markerOptions {
      position = latLngAltitude {
          latitude = 52.52027645136134
          longitude = 13.408271658592406
          altitude = 0.0  // altitude is effectively ignored by CLAMP_TO_GROUND for rendering,
          // but might be relevant if you read the marker's position later.
          // For CLAMP_TO_GROUND, it's often set to 0.0.
      }
      label = "Clamped to Ground"
      altitudeMode = AltitudeMode.CLAMP_TO_GROUND
      isExtruded = true
      isDrawnWhenOccluded = true
  })
  
  // Marker 4: Relative to Mesh
  googleMap3D.addMarker(markerOptions {
      position = latLngAltitude {
          latitude = 52.520835071144226
          longitude = 13.409426847943774
          altitude = 10.0 // Altitude relative to 3D mesh (buildings, terrain features)
      }
      label = "Relative to Mesh (10m)"
      altitudeMode = AltitudeMode.RELATIVE_TO_MESH
      isExtruded = true
      isDrawnWhenOccluded = true
  })