init

src/Event/index.js

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+/**
+ * @name: index
+ * @author: Administrator
+ * @date: 2022-06-14 14:44
+ * @description：index
+ * @update: 2022-06-14 14:44
+ */
+
+export default class MouseEvent {
+  constructor(sdk) {
+    this.sdk = sdk
+    this.viewer = sdk.viewer
+    this.handler = new Cesium.ScreenSpaceEventHandler(
+      this.viewer.canvas
+    )
+  }
+
+  /*事件*/
+  mouse_left(cb) {
+    // //左键点击事件
+    this.handler && this.handler.setInputAction((movement) => {
+      let cartesian = this.getcartesian(movement)
+      // cartesian = this.earth.czm.viewer.scene.pickPosition(movement.position)
+      // if (!cartesian) {
+      //   cartesian = this.viewer.scene.camera.pickEllipsoid(
+      //     movement.position,
+      //     this.viewer.scene.globe.ellipsoid
+      //   )
+      // }
+      // if (cartesian) {
+      //   cb(movement, cartesian)
+      // }
+      if (cartesian) {
+        cb(movement, cartesian)
+      }
+    }, Cesium.ScreenSpaceEventType.LEFT_CLICK)
+  }
+
+  mouse_left_down(cb) {
+    // //左键按下事件
+    this.handler && this.handler.setInputAction((movement) => {
+      let cartesian = this.getcartesian(movement)
+      if (cartesian) {
+        cb(movement, cartesian)
+      }
+    }, Cesium.ScreenSpaceEventType.LEFT_DOWN)
+  }
+  mouse_left_up(cb) {
+    // //左键抬起事件
+    this.handler && this.handler.setInputAction((movement) => {
+      let cartesian = this.getcartesian(movement)
+      if (cartesian) {
+        cb(movement, cartesian)
+      }
+    }, Cesium.ScreenSpaceEventType.LEFT_UP)
+  }
+
+  mouse_move(cb, allowNull = false) {
+    this.handler && this.handler.setInputAction((movement) => {
+      let cartesian = this.getcartesian(movement)
+
+      if (cartesian || allowNull) {
+        cb(movement, cartesian)
+      }
+    }, Cesium.ScreenSpaceEventType.MOUSE_MOVE)
+  }
+
+  mouse_right(cb, allowNull = false) {
+    this.handler && this.handler.setInputAction((movement) => {
+      let cartesian = this.getcartesian(movement)
+      if (cartesian || allowNull) {
+        cb(movement, cartesian)
+      }
+    }, Cesium.ScreenSpaceEventType.RIGHT_CLICK)
+  }
+
+  mouse_right_down(cb, allowNull = false) {
+    this.handler && this.handler.setInputAction((movement) => {
+      let cartesian = this.getcartesian(movement)
+      if (cartesian || allowNull) {
+        cb(movement, cartesian)
+      }
+    }, Cesium.ScreenSpaceEventType.RIGHT_DOWN)
+  }
+
+  mouse_right_up(cb, allowNull = false) {
+    this.handler && this.handler.setInputAction((movement) => {
+      let cartesian = this.getcartesian(movement)
+      if (cartesian || allowNull) {
+        cb(movement, cartesian)
+      }
+    }, Cesium.ScreenSpaceEventType.RIGHT_UP)
+  }
+
+  mouse_wheel(cb) {
+    this.handler && this.handler.setInputAction(() => {
+      cb()
+    }, Cesium.ScreenSpaceEventType.WHEEL)
+  }
+
+  getcartesian(movement) {
+    // if (movement.endPosition) {
+    //   movement.endPosition.y -= 2
+    // }
+    let position = movement.position || movement.endPosition
+    if(movement.position1 && movement.position2) {
+      position = {
+        x: (movement.position1.x + movement.position2.x) / 2,
+        y: (movement.position1.y + movement.position2.y) / 2,
+      }
+    }
+    let cartesian = this.viewer.scene.pickPosition(position)
+    if (!cartesian) {
+      const ray = this.viewer.camera.getPickRay(position); //相交的射线
+      let pickedObjects = this.viewer.scene.drillPickFromRay(ray, 10);
+      let result = {}
+      for (let i = 0; i < pickedObjects.length; i++) {
+        if (pickedObjects[i].position) {
+          result = pickedObjects[i]
+          break
+        }
+      }
+      cartesian = result.position
+      if(!cartesian) {
+        cartesian = this.viewer.scene.globe.pick(ray, this.viewer.scene);
+      }
+    }
+    return cartesian
+    // return this.earth.czm.viewer.scene.pickPosition(position)
+  }
+
+  //鼠标右键+键盘ctrl
+  mouse_right_keyboard_ctrl(cb) {
+    // //左键点击事件
+    this.handler && this.handler.setInputAction(
+      (movement) => {
+        let cartesian = this.getcartesian(movement)
+        if (cartesian) {
+          cb(movement, cartesian)
+        }
+      },
+      Cesium.ScreenSpaceEventType.RIGHT_CLICK,
+      Cesium.KeyboardEventModifier.CTRL
+    )
+  }
+
+  // 手势-双指触摸开始
+  gesture_pinck_start(cb) {
+    this.handler && this.handler.setInputAction((movement) => {
+      let cartesian = this.getcartesian(movement)
+      if (cartesian) {
+        cb(movement, cartesian)
+      }
+    }, Cesium.ScreenSpaceEventType.PINCH_START)
+  }
+
+  //手势-双指触摸开始+键盘ctrl
+  gesture_pinck_start_keyboard_ctrl(cb) {
+    this.handler && this.handler.setInputAction(
+      (movement) => {
+        let cartesian = this.getcartesian(movement)
+        if (cartesian) {
+          cb(movement, cartesian)
+        }
+      },
+      Cesium.ScreenSpaceEventType.PINCH_START,
+      Cesium.KeyboardEventModifier.CTRL
+    )
+  }
+
+  // 手势-双指触摸结束
+  gesture_pinck_end(cb) {
+    this.handler && this.handler.setInputAction((movement) => {
+      cb()
+    }, Cesium.ScreenSpaceEventType.PINCH_END)
+  }
+
+  // 手势-双指触摸修改
+  gesture_pinck_move(cb) {
+    this.handler && this.handler.setInputAction((movement) => {
+      // let cartesian = this.getcartesian(movement)
+      // if (cartesian) {
+      //   cb(movement, cartesian)
+      // }
+    }, Cesium.ScreenSpaceEventType.PINCH_MOVE)
+  }
+
+  destroy() {
+    if (this.handler)
+      this.handler.destroy() //关闭事件句柄
+    this.handler = null
+  }
+}