Question

我以XML格式从Google地图获取数据。所有功能都有效，但我没什么问题。它只显示我最后的数据。为什么会这样，我该如何解决？

这是我的代码（jsFiddle）

function getline() {


downloadUrl("line.php", function(doc) {



        var g = google.maps;

        var xmlDoc = xmlParse(doc);

        bounds = new google.maps.LatLngBounds();

      // ========= Now process the polylines ===========
      var lines = xmlDoc.documentElement.getElementsByTagName("line");

      // read each line
      for (var a = 0; a < lines.length; a++) {
        // get any line attributes
        var colour = lines[a].getAttribute("colour");
        var width  = parseFloat(lines[a].getAttribute("width"));
        var diameter = lines[a].getAttribute("diameter");
        var project = lines[a].getAttribute("projectid");
        var contract = lines[a].getAttribute("contract");
        var comp = lines[a].getAttribute("complated");
        var id = lines[a].getAttribute("id_line");
        // read each point on that line
        var points = lines[a].getElementsByTagName("point");
        var pts = [];
        var length = 0;
        var point = null;

        for (var i = 0; i < points.length; i++) {
           pts[i] = new g.LatLng(parseFloat(points[i].getAttribute("lng")),
                                parseFloat(points[i].getAttribute("lat")));
           if (i > 0) {
             length += pts[i-1].distanceFrom(pts[i]);
             if (isNaN(length)) { alert("["+i+"] length="+length+" segment="+pts[i-1].distanceFrom(pts[i])) };
           }
           bounds.extend(pts[i]);
           point = pts[parseInt(i/2)];

                var info = "<b> Contract: </b>" + contract + " <br/> <b>Project: </b>" + project +"<br/>  <b>Diameter: </b>" + diameter + " <br/> <b>Complated: </b>" + comp + "  <hr><br/><a class=\"inline-link-1\" href=\"#\">Change Data</a> <a class=\"inline-link-1\" href=\"#\">Edit</a> >" + id +"" ;

        }
        // length *= 0.000621371192; // miles/meter 

 if (comp < 1) { 
 colorr = '#FA0505' }

 if (comp > 0 && comp < 25 ) { 
 colorr = '#FFA640' }

 if (comp > 24 && comp < 50) { 
 colorr = '#FFFD91' }

 if (comp > 49 && comp < 75) { 
 colorr = '#E8E400' }

 if (comp > 74 && comp < 100) { 
 colorr = '#BFFFAD' }

 if (comp == 100) { 
 colorr = '#0F8500' }


        var polyline = new g.Polyline({
                          map:map,
                          path:pts,
                          strokeColor:colorr,
                          strokeWeight:width,
                          clickable: true
                          });
       //createClickablePolyline(polyloine, html, label, point, length);
     //  map.addOverlay(polyline);


  google.maps.event.addListener(polyline,'mouseover', function() {


        this.setOptions({strokeColor: '#690469' });
           this.setOptions({strokeOpacity: 1.0 });
           this.setOptions({strokeWeight: 4 });
  });

     google.maps.event.addListener(polyline,'mouseout', function() {


        this.setOptions({strokeColor: colorr });
           this.setOptions({strokeOpacity: 1.0 });
           this.setOptions({strokeWeight: 4 });
  });


  var  mpenc = new google.maps.InfoWindow();
  google.maps.event.addListener(polyline,'click', function(event) {
    mpenc.setContent(info, this);
    mpenc.setPosition(event.latLng, this);
    mpenc.open(map);
  });

      }
      map.fitBounds(bounds);




    });



}

Answer 1

看起来您复制了一些代码并进行了更改。为什么这个被注释掉了？

//createClickablePolyline(polyline, html, label, point, length);

该函数是关闭“数据”，折线和信息窗口的函数，因此它们彼此相关联（至少在我的代码版本中）。

working v3 version of my code

从xml谷歌地图获取数据

1 个答案: