Javascript 将位置坐标作为变量传递给谷歌地图
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Passing location coordinates to google maps as variable
提问by coryetzkorn
Anyone know why this will work:
任何人都知道为什么这会起作用：
var wickedLocation = new google.maps.LatLng(44.767778, -93.2775);
But this won't:
但这不会：
var wickedCoords = "44.767778, -93.2775";
var wickedLocation = new google.maps.LatLng(wickedCoords);
I tried passing the latitude and longitude as separate variables and that didn't do the trick either. How can I pass the coordinates successfully as a variable? Thanks!
我尝试将纬度和经度作为单独的变量传递，但这也不起作用。如何将坐标作为变量成功传递？谢谢！
回答by jmort253
In this example, you are passing two distinct numerical values into a constructor and then assigning the newly created object to wickedLocation:
在此示例中，您将两个不同的数值传递给构造函数，然后将新创建的对象分配给 wickedLocation：
var wickedLocation = new google.maps.LatLng(44.767778, -93.2775);
In this example, you're passing a single string value into a constructor that requires two distinct numerical coordinates:
在此示例中，您将单个字符串值传递给需要两个不同数字坐标的构造函数：
var wickedCoords = "44.767778, -93.2775";
var wickedLocation = new google.maps.LatLng(wickedCoords);
The data types are both completely different.
两者的数据类型完全不同。
With that said, if you want to represent a coordinate as a single object, you can do so like this:
话虽如此，如果您想将坐标表示为单个对象，您可以这样做：
var myHome = { "lat" : "44.767778" , "long" : "-93.2775" };
var yourHome = { "lat" : "23,454545" , "long" : "-92.12121" };
Then when you need to create the coords object from Google, you can pass the data in as individual arguments derived from a single object:
然后，当您需要从 Google 创建 coords 对象时，您可以将数据作为从单个对象派生的单独参数传入：
var wickedLocation = new google.maps.LatLng( myHome.lat, myHome.long );
回答by dda
If you are getting the coordinates as a string, in the format you showed in your example, you could do this:
如果您以字符串形式获取坐标，则按照您在示例中显示的格式，您可以执行以下操作：
var b=wickedCoords.split(",");
var wickedLocation=new google.maps.LatLng(parseFloat(b[0]), parseFloat(b[1]));
回答by Collin Green
I believe you can use strings to define the coordinates, but you need two (one for each parameter) not one.
我相信您可以使用字符串来定义坐标，但您需要两个（每个参数一个）而不是一个。
wickedLat = '44.767778';
wickedLon = '-93.2775';
wickedLocation = new google.maps.LatLng(wickedLat, wickedLon);
If not either use floats directly or parse your strings into floats with parseFloat()
如果不是直接使用浮点数或将您的字符串解析为浮点数 parseFloat()
