Question

var geocoder;
var map;
var infowindow;

function initialize() {
  geocoder = new google.maps.Geocoder();
  var loca = new google.maps.LatLng(41.7475, -74.0872);

  map = new google.maps.Map(document.getElementById('map'), {
    mapTypeId: google.maps.MapTypeId.ROADMAP,
    center: loca,
    zoom: 8
  });

}

function callback(results, status) {
  if (status == google.maps.places.PlacesServiceStatus.OK) {
    for (var i = 0; i < results.length; i++) {
      createMarker(results[i]);
    }
  }
}

function createMarker(place) {
  var placeLoc = place.geometry.location;
  var marker = new google.maps.Marker({
    map: map,
    position: place.geometry.location
  });

  google.maps.event.addListener(marker, 'mouseover', function() {
    infowindow.setContent(place.name);
    infowindow.open(map, this);
  });
}

function codeAddress() {
  var address = document.getElementById("address").value;
  geocoder.geocode({
    'address': address
  }, function(results, status) {
    if (status == google.maps.GeocoderStatus.OK) {
      map.setCenter(results[0].geometry.location);
      var marker = new google.maps.Marker({
        map: map,
        position: results[0].geometry.location
      });
      var request = {
        location: results[0].geometry.location,
        radius: 50000,
        name: 'ski',
        keyword: 'mountain',
        type: ['park']
      };
      infowindow = new google.maps.InfoWindow();
      var service = new google.maps.places.PlacesService(map);
      service.nearbySearch(request, callback);
    } else {
      alert("Geocode was not successful for the following reason: " + status);
    }
  });
}

google.maps.event.addDomListener(window, 'load', initialize);

我的应用程序目前根据硬编码的纬度和经度找到最近的滑雪区。我希望能够输入一个地址并将该地址转换为搜索的纬度和经度。我正在使用Google Maps api和地方库。我知道我不知何故需要使用地理编码，但不知道该怎么做。这是代码：

Answer 1

您的脚本没有错误，它对我来说运行正常，请查看以下示例。

问题可能是：

1）您的places-api脚本可能有误。 2）在脚本加载之前调用了codeAddress()。 确保首先加载脚本

＆＃13;

var geocoder;
var map;
var infowindow;

function initialize() {
  geocoder = new google.maps.Geocoder();
  var loca = new google.maps.LatLng(41.7475, -74.0872);

  map = new google.maps.Map(document.getElementById('map'), {
    mapTypeId: google.maps.MapTypeId.ROADMAP,
    center: loca,
    zoom: 8
  });

}

function callback(results, status) {
  if (status == google.maps.places.PlacesServiceStatus.OK) {
    for (var i = 0; i < results.length; i++) {
      createMarker(results[i]);
    }
  }
}

function createMarker(place) {
  var placeLoc = place.geometry.location;
  var marker = new google.maps.Marker({
    map: map,
    position: place.geometry.location
  });

  google.maps.event.addListener(marker, 'mouseover', function() {
    infowindow.setContent(place.name);
    infowindow.open(map, this);
  });
}

function codeAddress() {
  var address = document.getElementById("address").value;
  geocoder.geocode({
    'address': address
  }, function(results, status) {
    if (status == google.maps.GeocoderStatus.OK) {
      map.setCenter(results[0].geometry.location);
      var marker = new google.maps.Marker({
        map: map,
        position: results[0].geometry.location
      });
      var request = {
        location: results[0].geometry.location,
        radius: 50000,
        name: 'ski',
        keyword: 'mountain',
        type: ['park']
      };
      infowindow = new google.maps.InfoWindow();
      var service = new google.maps.places.PlacesService(map);
      service.nearbySearch(request, callback);
    } else {
      alert("Geocode was not successful for the following reason: " + status);
    }
  });
}

google.maps.event.addDomListener(window, 'load', initialize);

＆＃13;

<title>Google Maps API v3 Example : Geocoding Simple</title>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?libraries=places"></script>

<script type="text/javascript">
</script>


<div align="center" style="height: 30px; width: 530px">
<input id="address" type="textbox">
<input type="button" value="Geocode" onclick="codeAddress()">
</div>
<div id="map" style="height:200px; width: 530px"></div>

＆＃13;

请运行以上代码段

Here is a working example

无法读取属性＆＃39; geocode＆＃39;未定义的

1 个答案: