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How can i get the total distance in KM in my javascript

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问题 How can i get the total distance in KM in my javascript. It is shown already on top of the Panel, but i need this value also in my javascript. My javascript is as followed: var directionsService = new google.maps.DirectionsService(); var directionsDisplay = new google.maps.DirectionsRenderer(); var map = new google.maps.Map(document.getElementById('map'), { zoom:7, mapTypeId: google.maps.MapTypeId.ROADMAP }); directionsDisplay.setMap(map); directionsDisplay.setPanel(document.getElementById(

How can i get the total distance in KM in my javascript

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Equivelant of .NET GeoCoordinate.GetDistanceTo in Windows 8 Metro style Apps

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问题 What is the equivelant of the System.Device.Location.GeoCoordinate.GetDistanceTo method in Metro style Windows 8 Applications. Metro applications have the Geocoordinate class (With a lower case 'C') but no GetDistanceTo method. Secondly, the Metro Geocoordinate class has no constructor. How can I create an instance of it. 回答1: The Metro Geocoordinate has no public constructor for some reason. The best way to implement this in my opinion is to use Reflector and copy the implementation of

MongoDB Bound Queries: How do I convert mile to radian?

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问题 I have a collection of stores with a geospacial index on the location propery. What I am trying to do is given the user's latitude, latitude and a search radius (mi), I want to return the list of stores that are within those parameters. I saw the following example on the MongoDB documentation (http://www.mongodb.org/display/DOCS/Geospatial+Indexing), but it looks like the distance is in radians. center = [50, 50] radius = 10 db.places.find({"loc" : {"$within" : {"$center" : [center, radius]}}

MongoDB Bound Queries: How do I convert mile to radian?

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I have a collection of stores with a geospacial index on the location propery. What I am trying to do is given the user's latitude, latitude and a search radius (mi), I want to return the list of stores that are within those parameters. I saw the following example on the MongoDB documentation ( http://www.mongodb.org/display/DOCS/Geospatial+Indexing ), but it looks like the distance is in radians. center = [50, 50] radius = 10 db.places.find({"loc" : {"$within" : {"$center" : [center, radius]}}}) So, what is the formula to convert miles to radians? Solution The awesome people at mongodb-user