折线绘图点不是一条线

Question

我希望能够从坐标数组中绘制多边形线。 然而，当使用下面的代码时，它只会绘制一个点而不是一条线到数组中的每个lat / lng。 我该怎么做才能从每个纬度/ lng画一条线来形成一条线？ 代码：

var poly = new Array();    
for (var j = 0; j<p.Cot.length; j++) {
    var pos = new google.maps.LatLng(p.Cot[0],p.Cot[1])
    poly.push(pos);
}

        var Path = new google.maps.Polyline({
    path: poly,
    geodesic: true,
    strokeColor: '#ff004c',
    strokeOpacity: 1.0,
    strokeWeight: 5
  });
  Path.setMap(Map);

阵列： （第一个对象是lat，第二个是lng，第三个是标题，第四个是高度）。

  

婴儿床＆＃34;：33.091415，-112.142067，NULL，NULL，33.09549，-112.142998,25.0,1500.0,33.095802，-112.143333,320.0,2000.0,33.097103，-112.145912,320.0,2000.0,33.097431，-112.147766， 290.0,2000.0,33.097523，-112.149841,275.0,2000.0,33.097595，-112.152176,275.0,2000.0,33.097618，-112.152527,270.0,2000.0,33.097801，-112.158356,270.0,2000.0]}，

Answer 1

你的＆＃34;积分＆＃34;是数组中的4个数字的集合。通过数组增加4，Single.just(getInstance(context).initData()) .subscribeOn(Schedulers.io()) .subscribe(result -> { if(result) System.out.println("Init successful"); else System.out.println("Init unsuccessful"); }, error -> { System.out.println("Error occurred: " + error); }); 是纬度，index+0是经度。

index+1

proof of concept fiddle

代码段

＆＃13;

＆＃13;

var poly = [];
for (var j = 0; j < p.Cot.length; j+=4) {
  var pos = new google.maps.LatLng(p.Cot[j], p.Cot[j+1])
  poly.push(pos);
}

var Path = new google.maps.Polyline({
  path: poly,
  geodesic: true,
  strokeColor: '#ff004c',
  strokeOpacity: 1.0,
  strokeWeight: 5
});
Path.setMap(Map); 

＆＃13;

function initialize() {
  var Map = new google.maps.Map(
    document.getElementById("map_canvas"), {
      center: new google.maps.LatLng(33.091415, -112.142067),
      zoom: 13,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    });
  var poly = [];
  for (var j = 0; j < p.Cot.length; j += 4) {
    var pos = new google.maps.LatLng(p.Cot[j], p.Cot[j + 1])
    poly.push(pos);
  }

  var Path = new google.maps.Polyline({
    path: poly,
    geodesic: true,
    strokeColor: '#ff004c',
    strokeOpacity: 1.0,
    strokeWeight: 5
  });
  Path.setMap(Map);
}
google.maps.event.addDomListener(window, "load", initialize);
var p = {
  Cot: [33.091415, -112.142067, null, null, 33.09549, -112.142998, 25.0, 1500.0, 33.095802, -112.143333, 320.0, 2000.0, 33.097103, -112.145912, 320.0, 2000.0, 33.097431, -112.147766, 290.0, 2000.0, 33.097523, -112.149841, 275.0, 2000.0, 33.097595, -112.152176, 275.0, 2000.0, 33.097618, -112.152527, 270.0, 2000.0, 33.097801, -112.158356, 270.0, 2000.0]
};

＆＃13;

html,
body,
#map_canvas {
  height: 100%;
  width: 100%;
  margin: 0px;
  padding: 0px
}

＆＃13;

＆＃13;

＆＃13;