便利贴--6{OpenLayers,vue项目，画点}

同画线一样 ，简单粗暴，直接复用

只是加个数据在Draw.js中

  _this.isPoint = options.isPoint;
    /***
     * 是否是点
     */
    _this.coordinateOverPoint = options.coordinateOverPoint;
    /***
     * 输出点
     */
    -------------------找到这个函数 加下面几行就好
    Draw.prototype.handleUpEvent = function (event) {
    // console.log(event.coordinate_, 'handleUpEvent')//获取坐标点
    if (this.isPoint) {//判断是点直接抛出！
      this.coordinateOverPoint(event);
      this.finishDrawing();
      return;
    }
    var pass = true;
    if (this.getPointerCount() === 0) {
      if (this.downTimeout_) {
        clearTimeout(this.downTimeout_);
        this.downTimeout_ = undefined;
      }
      this.handlePointerMove_(event);
      if (this.shouldHandle_) {
        var startingToDraw = !this.finishCoordinate_;
        if (startingToDraw) {
          //开始后抬起
          // this.coordinateOverPoint(event);
          this.coordinate(event);
          this.startDrawing_(event.coordinate);
        }
        if (!startingToDraw && this.freehand_) {
          this.finishDrawing();
        } else if (
          !this.freehand_ &&
          (!startingToDraw || this.mode_ === Mode.POINT)
        ) {
          //选择后抬起
          this.coordinate(event);
          if (this.atFinish_(event.pixel)) {
            //结束绘画
            this.coordinateOver("结束");
            if (this.finishCondition_(event)) {
              this.finishDrawing();
            }
          } else {
            this.addToDrawing_(event.coordinate);
          }
        }
        pass = false;
      } else if (this.freehand_) {
        this.abortDrawing();
      }
    }
    if (!pass && this.stopClick_) {
      event.preventDefault();
    }
    return pass;
  };
     

主体函数--------注释没删 看情况使用，，，关于图片的尖头不在鼠标点的位置，–直接把图片用ps拉长 再到地图上调整偏移就好了···无奈之举若有更好的方法请指教（anchorYUnits: “-10px”,这个东西只能下移··）（offset: [0, 5],这个东西移动后超出图片范围会隐藏部分图片…）

getTypeSelectedPoint() {
      this.tipTitle = "单击左键选择位置";
      let that = this;
      let isHaveOne = false;
      $("#map")
        .off("mousemove")
        .mousemove(function (e) {
          if (!that.showTip) {
            that.showTip = true;
          }
          that.setTipPosition(e.offsetX, e.offsetY, 10, 10);
          // console.log(e.clientX);
          // console.log(e.offsetX);
          // console.log(e.pageX);
          // console.log(e.screenX);
          // console.log("================================");
        });

      if (this.typeSelected !== "None") {
        this.draw = new Draw({
          source: this.drawLayer.getSource(),
          type: this.typeSelected,
          style: new Style({
            stroke: new Stroke({
              color: "red",
              width: 3,
            }),
          }),
          isPoint: true,
          coordinate: function (res) {},
          coordinateOverPoint: function (res) {
            if (isHaveOne) {
              return;
            }
            that.$store.commit("setPointData", res.coordinate); //用vuex传最终数据
            // console.log(res.coordinate);//输出点
            that.addIconMarker(res.coordinate);
            that.butTitlePoint = "重新标点";
            that.draw.controlDrawing(true);
            $("#map").unbind("mousemove");
            that.tipTitle = "";
            that.showTip = false;
            isHaveOne = true;
          },
        });
        this.map.addInteraction(this.draw);
      }

      // 选点
      // this.addIconMarker([115.9111272006128, 28.699307185841562]);
    },
    addIconMarker(intlat) {
      this.carAddlayer.getSource().clear();
      // if (this.olLayer) {
      //   window.ol2d.removeLayer(this.olLayer);
      // }
      // let iconFeatures;

      // this.olLayer = new VectorLayer({
      //   // 图标图层
      //   zIndex: 22,
      //   source: new VectorSource(),
      // });
      let iconFeature = new OlFeature({
        geometry: new OlGeomPoint(intlat), //绘制图形（点）
      });
      iconFeature.setStyle(
        new OlStyleStyle({
          image: new OlStyleIcon({
            scale: 0.5,
            //控制标注图片和文字之间的距离
            // anchor: [0.2, 1],
            //标注样式的起点位置
            // anchorOrigin: "top-right",
            //X方向单位：分数
            // anchorXUnits: "10px",
            //Y方向单位：像素
            // anchorYUnits: "-10px",
            //偏移起点位置的方向
            offset: [0, 5],
            offsetOrigin: "bottom",
            //透明度
            opacity: 1,
            //图片路径
            // src: require("img/logos.png"),
            src: "img/dingwei/dingwei5.png",
          }),
        })
      );

      // 加载多个点用addFeatures，一个点用addFeature
      // this.olLayer.getSource().addFeature(iconFeature);
      this.carAddlayer.getSource().addFeature(iconFeature);
      // window.ol2d.addLayer(this.olLayer);

      // var startMarker = new OlFeature({
      //   type: "icon",
      //   // geometry: new OlGeomPoint([118.10131072998047, 36.819305419921875]),
      //   geometry: new OlGeomPoint(intlat),
      // });

      // var vectorLayer = new OlLayerVector({
      //   source: new OlSourceVector({
      //     features: [startMarker],
      //   }),
      //   style: new OlStyleStyle({
      //     image: new OlStyleIcon({
      //       anchor: [0.5, 1],
      //       src: "img/logos.png",
      //       // src: http://192.168.4.61:9527/static/mapMoniter/0.png
      //       // 说明下，因为vue项目打包之后，我这张图片放到了static目录下，直接给相对路径是无法访问到，
      //       // 可以通过js原生的API拿到对应的前台服务器ip和端口，还有项目名称，就可以访问到，下面附了对应帖子链接
      //     }),
      //     // 设置图片下面显示字体的样式和内容
      //     text: new Text({
      //       text: "文字描述", // 添加文字描述
      //       font: "14px font-size", // 设置字体大小
      //       // fill: new Fill({
      //       //   // 设置字体颜色
      //       //   color: "#1CAF9A",
      //       // }),
      //       offsetY: 10, // 设置文字偏移量
      //     }),
      //   }),
      // });
      // window.ol2d.addLayer(vectorLayer);
    },