计算2个位置之间的距离并计算价格

Question

所以基本上我有这个脚本（信贷1stwebdesigner.com和geocodezip）计算4个位置之间的距离。 位置1，位置2，位置3，位置4 我现在需要按照这个公式

1. 计算距离LOCATION2和位置3之间。 并同时获得该距离并显示它，并显示一个价格0-10kms = $ 99
2. 11-20kms加上每增加千米$ 5，
3. 21 - 35kms加上每增加公里3.75 $，
4. 36kms +加上每增加公里3.50 $，

我该如何解决这个问题？

到目前为止，我有这个（贷Rajaprabhu） （Price Calculation based on the distance covered） ，问题1，公式是错误的，我的情况和问题2是公式不是从前面的计算得到的距离。

var request = { 
    origin:location2, 
    destination:location3, 
    travelMode: google.maps.DirectionsTravelMode.DRIVING 
}; 
directionsService.route(request, function(response, status) 
{ 
    if (status == google.maps.DirectionsStatus.OK) 
    { 
     var distance = response.routes[0].legs[0].distance.text; 
     var duration = response.routes[0].legs[0].duration.text; 
     var dvDistance = document.getElementById("dvDistance"); 
     dvDistance.innerHTML = ""; 
     dvDistance.innerHTML += "The one way Distance is: " + distance + "<br />"; 
     dvDistance.innerHTML += "The one way Duration is: " + duration; 

     //calculate the one way price using the klms 
     var kms = distance; 
     var price_1 = (kms > 0) ? 3 : 0; kms = (kms > 0)? kms - 1 : 0; 
     var price_2 = (kms - 14) > 0 ? (14 * 1.60) : (kms * 1.60); kms = (kms-14)>0 ? kms - 14 : 0; 
     var price_3 = (kms - 15) > 0 ? (15 * 1.40) : (kms * 1.40); kms = (kms-15)>0 ? kms - 15 : 0; 
     var price_4 = (kms > 0) ? (kms * 1.20) : 0; 

     document.getElementById("displayprice").innerHTML = "the one way price is: " + (price_1 + price_2 + price_3 + price_4); 


    } 
}); 

卡住现在的公式。 1.超过35公里的任何东西都会给出不正确的结果。 2. 10公里及以下应该默认为99美元。

//calculate the one way price using the klms 
       var kms = distance; 
       console.log(kms); 
       var price_1 = (kms > 0) ? 99 : 0; kms = (kms > 0)? kms - 10 : 0; 
       var price_2 = (kms - 10) > 0 ? (10 * 5.00) : (kms * 5.00); kms = (kms-10)>0 ? kms - 10 : 0; 
       var price_3 = (kms - 20) > 0 ? (15 * 3.75) : (kms * 3.75); kms = (kms-20)>0 ? kms - 20 : 0; 
       var price_4 = (kms > 0) ? (kms * 3.50) : 0; 

Answer 1

从the documentation：

google.maps.Distance对象规范

距离的表示为数值，并显示字符串。

属性

• 文本 |类型：字符串|距离值的字符串表示，使用请求中指定的UnitSystem。

• value |类型：数字|以米为单位的距离。

你的距离是一个字符串：var distance = response.routes[0].legs[0].distance.text;

您应该使用的数值（以米为单位）：

var distance = response.routes[0].legs[0].distance.value/1000; 

proof of concept fiddle

代码片段：

var geocoder; 
 
var map; 
 
// New York, NY, USA (40.7127837, -74.00594130000002) 
 
// Newark, NJ, USA (40.735657, -74.1723667) 
 
// Philadelphia, PA, USA (39.9525839, -75.16522150000003) 
 
// Baltimore, MD, USA (39.2903848, -76.61218930000001) 
 

 

 
var location1 = new google.maps.LatLng(40.7127837, -74.005941); 
 
var location2 = new google.maps.LatLng(40.735657, -74.1723667); 
 
var location3 = new google.maps.LatLng(39.9525839, -75.1652215); 
 
var location4 = new google.maps.LatLng(39.2903848, -76.6121893); 
 

 
function initialize() { 
 
    // create a new map object 
 
    // set the div id where it will be shown 
 
    // set the map options 
 
    var mapOptions = { 
 
    center: { 
 
     lat: 42, 
 
     lng: -72 
 
    }, 
 
    zoom: 4 
 
    } 
 
    map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions); 
 

 
    // show route between the points 
 
    directionsService = new google.maps.DirectionsService(); 
 
    directionsDisplay = new google.maps.DirectionsRenderer({ 
 
    suppressMarkers: true, 
 
    suppressInfoWindows: true 
 
    }); 
 
    directionsDisplay.setMap(map); 
 

 

 
    var request = { 
 
    origin: location1, 
 
    waypoints: [{ 
 
     location: location2, 
 
    }, { 
 
     location: location3, 
 
    }], 
 
    destination: location4, 
 
    travelMode: google.maps.DirectionsTravelMode.DRIVING 
 
    }; 
 

 
    directionsService.route(request, function(response, status) { 
 
    if (status == google.maps.DirectionsStatus.OK) { 
 
     directionsDisplay.setDirections(response); 
 
     var route = response.routes[0]; 
 
     var summaryPanel = document.getElementById("directions_panel"); 
 
     summaryPanel.innerHTML = ""; 
 
     // For each route, display summary information. 
 
     for (var i = 0; i < route.legs.length; i++) { 
 
     var routeSegment = i + 1; 
 
     summaryPanel.innerHTML += "<b>Route Segment: " + routeSegment + "</b><br />"; 
 
     summaryPanel.innerHTML += route.legs[i].start_address + " to "; 
 
     summaryPanel.innerHTML += route.legs[i].end_address + "<br />"; 
 
     summaryPanel.innerHTML += route.legs[i].distance.text + "<br />"; 
 
     summaryPanel.innerHTML += route.legs[i].duration.text + "<br />"; 
 
     } 
 
     computeTotalDistance(response); 
 
     var request = { 
 
     origin: location2, 
 
     destination: location3, 
 
     travelMode: google.maps.DirectionsTravelMode.DRIVING 
 
     }; 
 
     directionsService.route(request, function(response, status) { 
 
     if (status == google.maps.DirectionsStatus.OK) { 
 
      var distance = response.routes[0].legs[0].distance.value/1000; 
 
      var duration = response.routes[0].legs[0].duration.text; 
 
      var dvDistance = document.getElementById("dvDistance"); 
 
      dvDistance.innerHTML = ""; 
 
      dvDistance.innerHTML += "The one way Distance (segment 2) is: " + distance + "<br />"; 
 
      dvDistance.innerHTML += "The one way Duration (segment 2) is: " + duration; 
 

 
      //calculate the one way price using the klms 
 
      var kms = distance; 
 
      console.log(kms); 
 
      var price_1 = (kms > 0) ? 3 : 0; 
 
      kms = (kms > 0) ? kms - 1 : 0; 
 
      var price_2 = (kms - 14) > 0 ? (14 * 1.60) : (kms * 1.60); 
 
      kms = (kms - 14) > 0 ? kms - 14 : 0; 
 
      var price_3 = (kms - 15) > 0 ? (15 * 1.40) : (kms * 1.40); 
 
      kms = (kms - 15) > 0 ? kms - 15 : 0; 
 
      var price_4 = (kms > 0) ? (kms * 1.20) : 0; 
 

 
      document.getElementById("displayprice").innerHTML = "the one way price (segment 2) is: $" + (price_1 + price_2 + price_3 + price_4).toFixed(2); 
 
     } 
 
     }); 
 
    } else { 
 
     alert("directions response " + status); 
 
    } 
 
    }); 
 
} 
 
google.maps.event.addDomListener(window, "load", initialize); 
 

 

 
function computeTotalDistance(result) { 
 
    var totalDist = 0; 
 
    var totalTime = 0; 
 
    var myroute = result.routes[0]; 
 
    for (i = 0; i < myroute.legs.length; i++) { 
 
    totalDist += myroute.legs[i].distance.value; 
 
    totalTime += myroute.legs[i].duration.value; 
 
    } 
 
    totalDist = totalDist/1000. 
 
    document.getElementById("total").innerHTML = "total distance is: " + totalDist + " km<br>total time is: " + (totalTime/60).toFixed(2) + " minutes<br>total price is: $" + ((totalTime/60).toFixed(2) * 2.1) + " dollars<br>saturday price is: $" + ((totalTime/60).toFixed(2) * 2.35) + " dollars<br>sunday price is: $" + ((totalTime/60).toFixed(2) * 2.6) + " dollars"; 
 
}

html, 
 
body, 
 
#map_canvas { 
 
    height: 100%; 
 
    width: 100%; 
 
    margin: 0px; 
 
    padding: 0px 
 
}

<script src="https://maps.googleapis.com/maps/api/js"></script> 
 
<div id="map_canvas"></div> 
 
<div id="dvDistance"></div> 
 
<div id="displayprice"></div> 
 
<div id="total"></div> 
 
<div id="directions_panel"></div>