구글맵 API2010. 1. 28. 13:46

좌표를 픽셀로 변환하는 예제입니다.
지도를 클릭하면 좌표와 픽셀을 보여줍니다.
설명은 생략하겠습니다.

예제보기

    function initialize() {
      if (GBrowserIsCompatible()) {
     
        var map = new GMap2(document.getElementById("map_canvas"));
        map.setCenter(new GLatLng(37.4419, 127.1419), 13);
        map.setUIToDefault();

        GEvent.addListener(map,"click", function(overlay,latlng) {
          if (overlay) {
            // ignore if we click on the info window
            return;
          }
          var tileCoordinate = new GPoint();
          var tilePoint = new GPoint();
          var currentProjection = G_NORMAL_MAP.getProjection();
          tilePoint = currentProjection.fromLatLngToPixel(latlng, map.getZoom());
          tileCoordinate.x = Math.floor(tilePoint.x / 256);
          tileCoordinate.y = Math.floor(tilePoint.y / 256);
          var myHtml = "Latitude: " + latlng.lat() + "<br/>Longitude: " + latlng.lng() +
            "<br/>The Tile Coordinate is:<br/> x: " + tileCoordinate.x +
            "<br/> y: " + tileCoordinate.y + "<br/> at zoom level " + map.getZoom();   
          map.openInfoWindow(latlng, myHtml);
        });
      }
    }
Posted by 못생긴나무