"Android" Gold map zoom levels and pixels and points on the map are converted to dots on the screen

/** *  adjust the map to all points that just place the query scope  *  @param  centerLatLng  Center point  *  @param  range   Query range (m)  */ private void adjustcamera (Latlng centerlatlng,int range)  {  //http://www.eoeandroid.com/blog-1107295-47621.html//the scale at the current zoom level  //"per pixel represents"  + scale +   "M" Float scale = g_amap.getscaleperpixel ();  //represents the number of pixels in range (m)  int pixel  = math.round (Range / scale),  //Small scale, small zoom level (large scale), with loss of precision  Projection  Projection = g_amap.getprojection ();  //converts the center point of the map to a point on the screen  Point center =  Projection.toscreenlocation (CENTERLATLNG);  //gets the left and right two points from the center point to pixel pixels (the point on the screen  point right =  new point (CENTER.X + PIXEL, CENTER.Y); point left = new  Point (CENTER.X - PIXEL, CENTER.Y);  //converts points on the screen to points on the map  latlng rightlatlng =  projection.fromscreenlocation (Right);  latlng leftlatlng = projection.fromscreenlocation (left); latlngbounds  Bounds = latlngbounds.builder (). Include (RIGHTLATLNG). Include (LEFTLATLNG). build ();//bounds.contains () ; G_amap.getmapscreenmarkers ();//Adjust visual range  //amap.movecamera (Cameraupdatefactory.newlatlngbounds ( Latlngbounds.builder (). Include (RIGHTLATLNG). Include (LEFTLATLNG). Build (),  10));  }}

Code snippet, click on the area to display the points on the area

LATLNG latlng = Marker.getposition ();//zoom level FLOAT zoom = G_amap.getcameraposition (). zoom;//"per pixel represents" + scale + "M" Float scal E = G_amap.getscaleperpixel (); Float range = scale * ZOOM; Circle Circle = g_amap.addcircle (New circleoptions (). Center (LATLNG). Radius (range). Strokecolor (Getresources (). GetColor (R.color.color_translate)). FillColor (Getresources (). GetColor (R.color.color_translate)). Strokewidth (2)) ;

"Android" Gold map zoom levels and pixels and points on the map are converted to dots on the screen