latlng函数参数
latlng函数参数
提问于 2012-11-29 21:57:21
我使用这个程序的主要目标是生成一个显示特定建筑物位置的Google地图。
由于Google的限制，我已经生成并存储了我在MS SQL数据库(这是一个房地产网站)中分析的所有建筑的所有纬度和经度。每次选择一个建筑物，我都会检索相应的纬度和经度，并将其存储在两个asp中:Label‘s。我使用Javascript中的一个脚本来处理通过两个asp:Label's传递的纬度和经度。我的问题是，由于某些原因，LatLng函数似乎不能工作，并且我的地图没有显示它们应该显示的坐标。我想我可能对LatLng期望的变量类型有问题。我已经尝试了这两种方法，传递的默认字符串和将变量转换为real类型。这是脚本。如有任何帮助或建议，我们将非常感谢：
<script type="text/javascript">
(function () {
// Defining global variables
var map, geocoder, marker, infowindow, propertyaddress, selectedbuilding, maplatitude, maplongitude, buildinglatlng, latlng, myOptions;
function InitializeMap() {
//propertyaddress = '400 Alton Road, Miami Beach, FL 33139';
propertyaddress = document.getElementById('<%=lblselectedHiddenBuildingAddress.ClientID%>').innerText;
selectedbuilding = document.getElementById('<%=lblMainBuilding.ClientID%>').innerText;
//maplatitude = parseFloat(document.getElementById('<%=lblCoordinateLatitud.ClientID%>').innerText);
//maplongitude = parseFloat(document.getElementById('<%=lblCoordinateLongitud.ClientID%>').innerText);
maplatitude = document.getElementById('<%=lblCoordinateLatitud.ClientID%>').innerText;
maplongitude = document.getElementById('<%=lblCoordinateLongitud.ClientID%>').innerText;
buildinglatlng = new google.maps.LatLng(maplatitude, maplongitude);
//window.alert("Processed propertyaddress");
//latlng = new google.maps.LatLng(25.76804, -80.132743);
// Creating an object literal containing the properties
// we want to pass to the map
myOptions = {
zoom: 15,
center: new google.maps.LatLng(maplatitude, maplongitude),
//center: buildinglatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP,
scaleControl: true,
streetViewControl: true,
disableDefaultUI: true,
mapTypeControl: true,
mapTypeControlOptions: {
style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR,
position: google.maps.ControlPosition.TOP_LEFT,
mapTypeIds: [
google.maps.MapTypeId.ROADMAP,
google.maps.MapTypeId.TERRAIN,
google.maps.MapTypeId.SATELLITE
]
},
navigationControl: true,
navigationControlOptions: {
position: google.maps.ControlPosition.TOP_LEFT
}
};
// Creating the map
map = new google.maps.Map(document.getElementById("map"), myOptions);
}
window.onload = InitializeMap;
})();
</script>添加了可以工作但使用地理编码器的代码
例如，以下代码可以很好地工作，但它使用了地理编码器。传递变量不是问题。LatLng有一些奇怪的地方，以及它如何处理传递的变量。不过，它确实获得了所有重要位置的值。
<script type="text/javascript">
(function () {
// Defining global variables
var map, geocoder, marker, infowindow, propertyaddress, selectedbuilding, maplatitude, maplongitude, buildinglatlng, latlng, myOptions;
function InitializeMap() {
//propertyaddress = '400 Alton Road, Miami Beach, FL 33139';
propertyaddress = document.getElementById('<%=lblselectedHiddenBuildingAddress.ClientID%>').innerText;
selectedbuilding = document.getElementById('<%=lblMainBuilding.ClientID%>').innerText;
//maplatitude = parseFloat(document.getElementById('<%=lblCoordinateLatitud.ClientID%>').innerText);
//maplongitude = parseFloat(document.getElementById('<%=lblCoordinateLongitud.ClientID%>').innerText);
maplatitude = document.getElementById('<%=lblCoordinateLatitud.ClientID%>').innerText;
maplongitude = document.getElementById('<%=lblCoordinateLongitud.ClientID%>').innerText;
buildinglatlng = new google.maps.LatLng(maplatitude, maplongitude);
//window.alert("Processed propertyaddress");
//latlng = new google.maps.LatLng(25.76804, -80.132743);
if (!geocoder) {
geocoder = new google.maps.Geocoder();
}
// Creating a GeocoderRequest object
var geocoderRequest = {
address: propertyaddress
}
geocoder.geocode(geocoderRequest, function (results, status) {
// Check if status is OK before proceeding
if (status == google.maps.GeocoderStatus.OK) {
// Center the map on the returned location
//map.setCenter(results[0].geometry.location);
// Creating an object literal containing the properties
// we want to pass to the map
myOptions = {
zoom: 15,
//center: new google.maps.LatLng(maplatitude, maplongitude),
center: results[0].geometry.location,
mapTypeId: google.maps.MapTypeId.ROADMAP,
scaleControl: true,
streetViewControl: true,
disableDefaultUI: true,
mapTypeControl: true,
mapTypeControlOptions: {
style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR,
position: google.maps.ControlPosition.TOP_LEFT,
mapTypeIds: [
google.maps.MapTypeId.ROADMAP,
google.maps.MapTypeId.TERRAIN,
google.maps.MapTypeId.SATELLITE
]
},
navigationControl: true,
navigationControlOptions: {
position: google.maps.ControlPosition.TOP_LEFT
}
};
// Creating the map
map = new google.maps.Map(document.getElementById("map"), myOptions);
// Check to see if we've already got a Marker object
if (!marker) {
// Creating a new marker and adding it to the map
marker = new google.maps.Marker({
map: map,
animation: google.maps.Animation.DROP
});
google.maps.event.addListener(marker, 'click', toggleBounce);
}
// Setting the position of the marker to the returned location
marker.setPosition(results[0].geometry.location);
// Check to see if we've already got an InfoWindow object
google.maps.event.addListener(marker, 'click', function () {
if (!infowindow) {
// Creating a new InfoWindow
infowindow = new google.maps.InfoWindow();
}
// Creating the content of the InfoWindow to the address
// and the returned position
var content = '<h2>' + selectedbuilding + '</h2>';
//content += 'Lat: ' + results[0].geometry.location.lat() + '<br />';
//content += 'Lng: ' + results[0].geometry.location.lng();
// Adding the content to the InfoWindow
infowindow.setContent(content);
// Opening the InfoWindow
infowindow.open(map, marker);
});
// Triggering the click event
google.maps.event.trigger(marker, 'click');
};
});
}
function toggleBounce() {
if (marker.getAnimation() != null) {
marker.setAnimation(null);
} else {
marker.setAnimation(google.maps.Animation.BOUNCE);
}
}
window.onload = InitializeMap;
})();
</script>你好，伊莱亚斯
回答 2
Stack Overflow用户
发布于 2012-11-29 22:05:31
您是否验证了maplatitude和maplongitude包含您期望的值(例如，使用调试器)？
预期位置和地图上显示的实际位置之间是否存在相关性(例如，如果建筑物位于N21.7684，而标记放置在N21.0000，则小数位可能已丢失)。
Stack Overflow用户
发布于 2012-11-30 02:19:27
我刚刚发现谷歌发布了一篇文章，他们修改了LatLng函数，现在你必须用NUMBER()来转换这两个参数。他们声称，人们正在将字符串传递给LatLng函数，这会产生不可预测的结果。所以我在我的新代码中添加了这些更改...我只用了三天就找到了这个修复！-(我想知道为什么更多的人没有遇到这个问题。代码如下：
<script type="text/javascript">
(function () {
// Defining global variables
var map, geocoder, marker, infowindow, propertyaddress, selectedbuilding, maplatitude, maplongitude, buildinglatlng, latlng, myOptions;
function InitializeMap() {
//propertyaddress = '400 Alton Road, Miami Beach, FL 33139';
propertyaddress = document.getElementById('<%=lblselectedHiddenBuildingAddress.ClientID%>').innerText;
selectedbuilding = document.getElementById('<%=lblMainBuilding.ClientID%>').innerText;
//maplatitude = parseFloat(document.getElementById('<%=lblCoordinateLatitud.ClientID%>').innerText);
//maplongitude = parseFloat(document.getElementById('<%=lblCoordinateLongitud.ClientID%>').innerText);
maplatitude = document.getElementById('<%=lblCoordinateLatitud.ClientID%>').innerText;
maplongitude = document.getElementById('<%=lblCoordinateLongitud.ClientID%>').innerText;
buildinglatlng = new google.maps.LatLng(Number(maplatitude), Number(maplongitude));
//window.alert("Processed propertyaddress");
myOptions = {
zoom: 15,
center: new google.maps.LatLng(Number(maplatitude), Number(maplongitude)),
mapTypeId: google.maps.MapTypeId.ROADMAP,
scaleControl: true,
streetViewControl: true,
disableDefaultUI: true,
mapTypeControl: true,
mapTypeControlOptions: {
style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR,
position: google.maps.ControlPosition.TOP_LEFT,
mapTypeIds: [
google.maps.MapTypeId.ROADMAP,
google.maps.MapTypeId.TERRAIN,
google.maps.MapTypeId.SATELLITE
]
},
navigationControl: true,
navigationControlOptions: {
position: google.maps.ControlPosition.TOP_LEFT
}
};
// Creating the map
map = new google.maps.Map(document.getElementById("map"), myOptions);
// Check to see if we've already got a Marker object
if (!marker) {
// Creating a new marker and adding it to the map
marker = new google.maps.Marker({
map: map,
animation: google.maps.Animation.DROP
});
google.maps.event.addListener(marker, 'click', toggleBounce);
}
// Setting the position of the marker to the returned location
marker.setPosition(buildinglatlng);
// Check to see if we've already got an InfoWindow object
google.maps.event.addListener(marker, 'click', function () {
if (!infowindow) {
// Creating a new InfoWindow
infowindow = new google.maps.InfoWindow();
}
// Creating the content of the InfoWindow to the address
// and the returned position
var content = '<h2>' + selectedbuilding + '</h2>';
// Adding the content to the InfoWindow
infowindow.setContent(content);
// Opening the InfoWindow
infowindow.open(map, marker);
});
// Triggering the click event
google.maps.event.trigger(marker, 'click');
}
function toggleBounce() {
if (marker.getAnimation() != null) {
marker.setAnimation(null);
} else {
marker.setAnimation(google.maps.Animation.BOUNCE);
}
}
window.onload = InitializeMap;
})();
</script>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/13627371
复制相关文章
相似问题
腾讯云开发者
Copyright © 2013 - 2026 Tencent Cloud. All Rights Reserved. 腾讯云 版权所有
深圳市腾讯计算机系统有限公司 ICP备案/许可证号：粤B2-20090059 
粤公网安备44030502008569号
腾讯云计算（北京）有限责任公司 京ICP证150476号 | 京ICP备11018762号