Question

有了这个功能

drawCircle(pointa, pointb, radius, dir) { 
    console.log("TESTING POINTA POINTB >>>>>>>>>>>>"+pointa+" - "+pointb);
    let lat;
    let lng;
    var d2r = Math.PI / 180;   // degrees to radians 
    var r2d = 180 / Math.PI;   // radians to degrees 
    var earthsradius = 3963; // 3963 is the radius of the earth in miles or 6371 in km
    var points = 32; 

    // find the raidus in lat/lon 
    var rlat = (radius / earthsradius) * r2d; 
    var rlng = rlat / Math.cos(pointa * d2r); 

    var extp = new Array(); 
    if (dir==1)   {var start=0;var end=points+1} // one extra here makes sure we connect the ends
    else      {var start=points+1;var end=0}
    for (var i=start; (dir==1 ? i < end : i > end); i=i+dir) { 

      var theta = Math.PI * (i / (points/2)); 
      let ey = pointb + (rlng * Math.cos(theta)); // center a + radius x * cos(theta) 
      let ex = pointa + (rlat * Math.sin(theta)); // center b + radius y * sin(theta) 
      extp.push({lat: ey, lng: ex}); 
      //console.log("PUSHING TO EXTP >>>>>>>>>>>>",{'lat': ey,'lng': ex});

    } 
    console.log("CHECK EXTP ARRAY >>>>>>>>>>>>",extp);
    return extp;
  }

应该创建一个数组（extp）并将其返回给我在谷歌地图中使用的函数（this.drawCircle）

this.map.addPolygon({
                points: this.points,
                  holes: this.drawCircle(this.myLat, this.myLong, 1, 1),
                    'strokeColor': "black",
                    'strokeWidth': 2,
                    'fillColor': "#222222"
                  });

然而，在控制台而不是它给出值，我得到的对象而不是（例如）：{lat：85，lng：179.9}这种格式 - 作为回报，它不会在多边形。

检查EXTP ARRAY＆gt;＆gt;＆gt;＆gt;＆gt;＆gt;＆gt;＆gt;＆gt;＆gt;＆gt;＆gt;＆gt; [object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]， [object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]， [object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]，[object Object]， [object Object]，[object Object]，[object Object]

编辑：

如果我更换

this.map.addPolygon({
                points: this.points,
                  holes: this.drawCircle(this.myLat, this.myLong, 1, 1),
                    'strokeColor': "black",
                    'strokeWidth': 2,
                    'fillColor': "#222222"
                  });

与

this.map.addPolygon({
                points: this.points,
                  holes: [
                    [
                        {lat: 29.68224948021748,lng: -23.676965750000022},  
                        {lat: 29.68224948021748,lng: 44.87772174999998}, 
                        {lat: 71.82725578445813,lng: 44.87772174999998}, 
                        {lat: 71.82725578445813,lng: -23.676965750000022}, 

                      ]
                    ],
                    'strokeColor': "black",
                    'strokeWidth': 2,
                    'fillColor': "#222222"
                  });

它工作正常，所以我认为问题仍然是由于extp。有什么想法吗？

Ionic push to Array给出了[object Object]

0 个答案: