init

src/Draw/drawPoint.js

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+import MouseTip from '../MouseTip'
+import MouseEvent from '../Event'
+import Draw from "./draw";
+
+
+class DrawPoint extends Draw {
+  /**
+   * @constructor
+   * @desc 获取坐标点
+   * */
+  constructor(sdk, options = {}, is2D = false) {
+    super(sdk, options, is2D)
+  }
+
+  /**
+   * @desc 开始动态获取坐标点
+   * @method start
+   * @param cb {function} 回调函数
+   * @memberOf DrawPoint
+   * @example draw.start((err,position)=>{
+   *
+   * })
+   * */
+
+  start(cb) {
+    if (YJ.Measure.GetMeasureStatus()) {
+      cb('上一次测量未结束')
+    } else {
+      let car = undefined
+      YJ.Measure.SetMeasureStatus(true)
+      this.tip = new MouseTip('左键确定，右键结束；', this.sdk)
+      this.event = new MouseEvent(this.sdk)
+      this.event.mouse_left((movement, cartesian) => {
+        this.end()
+        let p = this.cartesian3Towgs84(car || cartesian, this.viewer)
+        cb(null, p, Cesium)
+      })
+      this.event.mouse_right((movement, cartesian) => {
+        this.end()
+        cb(false)
+      })
+      this.event.mouse_move((movement, cartesian) => {
+        car = cartesian
+        this.tip.setPosition(
+          cartesian,
+          movement.endPosition.x,
+          movement.endPosition.y
+        )
+      })
+
+      this.event.gesture_pinck_start((movement, cartesian) => {
+        let startTime = new Date()
+        this.event.gesture_pinck_end(() => {
+          let endTime = new Date()
+          if (endTime - startTime >= 500) {
+            this.end()
+            cb(false)
+          }
+          else {
+            this.end()
+            let p = this.cartesian3Towgs84(car || cartesian, this.viewer)
+            cb(null, p)
+          }
+        })
+      })
+
+
+
+      if (!this._is2D && this._sdk2D) {
+        this.event2D = new MouseEvent(this._sdk2D)
+        this.event2D.mouse_left((movement, cartesian) => {
+          this.end()
+          let p = this.cartesian3Towgs84(car || cartesian, this.viewer)
+          cb(null, p, Cesium)
+        })
+        this.event2D.mouse_right((movement, cartesian) => {
+          this.end()
+          cb(false)
+        })
+        this.event2D.mouse_move((movement, cartesian) => {
+          car = cartesian
+          this.tip.setPosition(
+            cartesian,
+            movement.endPosition.x + this.viewer.canvas.width,
+            movement.endPosition.y
+          )
+        })
+
+        this.event2D.gesture_pinck_start((movement, cartesian) => {
+          let startTime = new Date()
+          this.event2D.gesture_pinck_end(() => {
+            let endTime = new Date()
+            if (endTime - startTime >= 500) {
+              this.end()
+              cb(false)
+            }
+            else {
+              this.end()
+              let p = this.cartesian3Towgs84(car || cartesian, this.viewer)
+              cb(null, p)
+            }
+          })
+        })
+      }
+    }
+  }
+
+  end() {
+    YJ.Measure.SetMeasureStatus(false)
+    this.event && this.event.destroy()
+    this.event2D && this.event2D.destroy()
+    this.tip && this.tip.destroy()
+  }
+}
+
+export default DrawPoint