谷歌地图api v3 - 最近的街景 [英] google maps api v3 - nearest streetview

问题描述

当街景不适用于某个特定位置时，我希望找到最近的街景位置？

我能想到的唯一方法就是。

  radius = 0; 
 noOfPoints = 3; 
 
（半径<10英里）{
 
半径=半径+ 0.2英里
点=计算4 *在此半径处的noOfPoints 
 
循环（点）
 {
 if（streetview visibile for point）
宾果，休息; 
} 
 
如果宾果游戏中断， 
 
 noOfPOints = noOfPoints + 1; 
 
 
 $ / code> 

但即使我想要找到streetview，在10英里半径范围内，我希望能够在这些地点之一找到街景，也就是说，我可能会错过街景的实际点。



有人可以请指导我采取更好的方法??您可以尝试使用StreetViewService帮助您找到最近的现有街景：

  var astorPlace = new google.maps.LatLng（40.729884，-73.990988）; 
 var webService = new google.maps.StreetViewService（）; 
 / **检查周长为50米** / 
 var checkaround = 50; 
 / ** checkNearestStreetView是一个有效的回调函数** / 
 
 webService.getPanoramaByLocation（astorPlace，checkaround，checkNearestStreetView）; 
 
函数checkNearestStreetView（panoData）{
 if（panoData）{
 
 if（panoData.location）{
 
 if（panoData。 location.latLng）{
 / **做得好，您可以使用最近的现有街景坐标** / 
} 
} 
} 
 / **其他某事...... ** / 
} 
  




When streetview is not available for a certain location, I would like to find the nearest possible location with streetview?

The only way I could think of is.

radius = 0;
noOfPoints = 3;

while(radius < 10 miles){

    radius = radius + 0.2 miles
    points = calculate 4 * noOfPoints at this radius

    loop(points)
    {
       if(streetview visibile for point)
          bingo, break;
    }

    break if bingo;

    noOfPOints = noOfPoints+1;

}

But this is ridiculously expensive even if I want to find streetview within a 10-mile radius and I am counting on luck to find streetview at one of these points, i.e, I could just miss an actual point with streetview.

can somebody please direct me towards a better approach??

解决方案

You can try to use the StreetViewService to help you find a nearest existing street view:

var astorPlace = new google.maps.LatLng(40.729884, -73.990988);
var webService = new google.maps.StreetViewService();  
/**Check in a perimeter of 50 meters**/ 
var checkaround = 50;
/** checkNearestStreetView is a valid callback function **/

webService.getPanoramaByLocation(astorPlace,checkaround ,checkNearestStreetView);

function checkNearestStreetView(panoData){
    if(panoData){

         if(panoData.location){

            if(panoData.location.latLng){
                /**Well done you can use a nearest existing street view coordinates**/
            }
        }
    }
    /** Else do something... **/
}

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