Scrolls the map the point amount specified in offset and optionally animates this.

MKMapView+PointScroll.m

- (void)scrollWithOffset:(CGSize)offset animated:(BOOL)animated
{
	MKMapPoint centerMapPoint = MKMapPointForCoordinate(self.centerCoordinate);
	
	CGPoint centerPoint = [self convertCoordinate:self.centerCoordinate toPointToView:self];
	CGPoint destinationPoint = CGPointMake(centerPoint.x+offset.width, centerPoint.y+offset.height);
	CLLocationCoordinate2D destinationCoordinate = [self convertPoint:destinationPoint toCoordinateFromView:self];
	MKMapPoint destMapPoint = MKMapPointForCoordinate(destinationCoordinate);
	
	MKMapRect mapRect = self.visibleMapRect;
	mapRect = MKMapRectOffset(mapRect, centerMapPoint.x-destMapPoint.x, centerMapPoint.y-destMapPoint.y);	
	[self setVisibleMapRect:mapRect animated:animated];
}