getRightLower method
Implementation
Mappoint getRightLower() {
if (_rightLower != null) return _rightLower!;
_rightLower = Mappoint(((tileX + 1) * MapsforgeSettingsMgr().tileSize) - 1, ((tileY + 1) * MapsforgeSettingsMgr().tileSize) - 1);
return _rightLower!;
}