private void findCorners()
{
mapRectangle = new MapRectangle();
MyPoint SW_Mercator = new MyPoint(centerMercator.x - widthMercatorX / 2.0f, centerMercator.y - heightMercatorY / 2.0f);
MyPoint NE_Mercator = new MyPoint(centerMercator.x + widthMercatorX / 2.0f, centerMercator.y + heightMercatorY / 2.0f);
MyPoint mapCenterMeters = new MyPoint(gameObject.transform.position.x, gameObject.transform.position.z);
mapRectangle.setCorners(SW_Mercator, NE_Mercator, mapCenterMeters);
}