【问题标题】:Google Map API - Zoom bar not displaying correctly [duplicate]Google Map API - 缩放栏未正确显示[重复]
【发布时间】:2015-05-28 07:11:13
【问题描述】:

我已经设法让 Google Maps API 与 mySQL 数据库一起工作。

这和我想要的差不多,但只是注意到缩放栏显示不正确:

http://www.quakerquest.org/meeting_place_search/

有什么建议可以解决这个问题吗?谢谢。

Google API 代码是

<script type="text/javascript">
//<![CDATA[
var map;
var markers = [];
var infoWindow;
var locationSelect;

function load() {
  map = new google.maps.Map(document.getElementById("map"), {
    center: new google.maps.LatLng(53.3836, -1.4665),
    zoom: 6,
    mapTypeId: 'roadmap',
    mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU}
  });
  infoWindow = new google.maps.InfoWindow();

  locationSelect = document.getElementById("locationSelect");
  locationSelect.onchange = function() {
    var markerNum = locationSelect.options[locationSelect.selectedIndex].value;
    if (markerNum != "none"){
      google.maps.event.trigger(markers[markerNum], 'click');
    }
  };
}

function searchLocations() {
 var address = document.getElementById("addressInput").value;
 var geocoder = new google.maps.Geocoder();
 geocoder.geocode({address: address}, function(results, status) {
   if (status == google.maps.GeocoderStatus.OK) {
    searchLocationsNear(results[0].geometry.location);
   } else {
     alert(address + ' not found');
   }
 });
 }

function clearLocations()  {
 infoWindow.close();
 for (var i = 0; i < markers.length; i++) {
   markers[i].setMap(null);
 }
 markers.length = 0;

 locationSelect.innerHTML = "";
 var option = document.createElement("option");
 option.value = "none";
 option.innerHTML = "Select a meeting house:";
 locationSelect.appendChild(option);
}

function searchLocationsNear(center) {
 clearLocations();

 var radius = document.getElementById('radiusSelect').value;
 var searchUrl = 'phpsqlsearch_genxml.php?lat=' + center.lat() + '&lng=' + center.lng() + '&radius=' + radius;
 downloadUrl(searchUrl, function(data) {
   var xml = parseXml(data);
   var markerNodes = xml.documentElement.getElementsByTagName("marker");
   var bounds = new google.maps.LatLngBounds();
   for (var i = 0; i < markerNodes.length; i++) {
     var name = markerNodes[i].getAttribute("Venue");
     var nameID = markerNodes[i].getAttribute("VenueID");
     var address = markerNodes[i].getAttribute("address");
     var distance = parseFloat(markerNodes[i].getAttribute("distance"));
     var latlng = new google.maps.LatLng(
          parseFloat(markerNodes[i].getAttribute("lat")),
          parseFloat(markerNodes[i].getAttribute("lng")));

     createOption(name, distance, i);
     createMarker(latlng, name, nameID, address);
     bounds.extend(latlng);
   }
   map.fitBounds(bounds);
   locationSelect.style.visibility = "visible";
   locationSelect.onchange = function() {
     var markerNum = locationSelect.options[locationSelect.selectedIndex].value;
     google.maps.event.trigger(markers[markerNum], 'click');
   };
  });
}

function createMarker(latlng, name, nameID, address) {



  var html = "<a href='http://www.quakerquest.org/meeting_place_details/index.php?VenueID="+nameID+"'>" + name + "</a> <br/>" + address;



  var marker = new google.maps.Marker({
    map: map,
    position: latlng
  });
  google.maps.event.addListener(marker, 'click', function() {
    infoWindow.setContent(html);
    infoWindow.open(map, marker);
  });
  markers.push(marker);
}

function createOption(name, distance, num) {
  var option = document.createElement("option");
  option.value = num;
  option.innerHTML = name + "(" + distance.toFixed(1) + ")";
  locationSelect.appendChild(option);
}

function downloadUrl(url, callback) {
  var request = window.ActiveXObject ?
      new ActiveXObject('Microsoft.XMLHTTP') :
      new XMLHttpRequest;

  request.onreadystatechange = function() {
    if (request.readyState == 4) {
      request.onreadystatechange = doNothing;
      callback(request.responseText, request.status);
    }
  };

  request.open('GET', url, true);
  request.send(null);
}

function parseXml(str) {
  if (window.ActiveXObject) {
    var doc = new ActiveXObject('Microsoft.XMLDOM');
    doc.loadXML(str);
    return doc;
  } else if (window.DOMParser) {
    return (new DOMParser).parseFromString(str, 'text/xml');
  }
}

function doNothing() {}

//]]>

以及显示地图的 HTML:

<div id="map" style="width:100%; height: 40%"></div>

【问题讨论】:

  • 您好,可以在这里发布一些相关代码吗? (即你如何初始化谷歌地图)。详情见这里:meta.stackoverflow.com/questions/254428谢谢!
  • 现已添加API代码。
  • 真的很抱歉发布重复。我确实搜索了“Google Maps API zoom”,但在前几页中没有发现任何明显的东西。所以不幸的是,我无法解释这有什么不同。如果您知道该问题已得到解答,则指向答案的链接可能会有所帮助。

标签: google-maps-api-3


【解决方案1】:

我记得遇到过这个烦人的问题。

显然谷歌地图不喜欢

img {
   max-width: 100%;
}

(通常来自引导程序或其他 css 重置)

将此添加到您的 css 以进行修复:

#map img {
  max-width: none;
}

不知道为什么它有效,但确实有效。

【讨论】:

  • 感谢 Bryant - 修复了它。
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