How to modify HubTile image transition direction in runtime?

You can set HubTile SlideTransition property to achieve this.

// Sets Image transition direction as RightToLeft
this.HubTile1.SlideTransition = TransitionDirection.RightToLeft;
// Sets Image transition direction as LeftToRight
this.HubTile1.SlideTransition = TransitionDirection.LeftToRight;
// Sets Image transition direction as TopToBottom
this.HubTile1.SlideTransition = TransitionDirection.TopToBottom;
// Sets Image transition direction as BottomToTop
this.HubTile1.SlideTransition= TransitionDirection.BottomToTop;
Sets Image transition direction as RightToLeft
Me.HubTile1.SlideTransition = TransitionDirection.RightToLeft
Sets Image transition direction as LeftToRight
Me.HubTile1.SlideTransition = TransitionDirection.LeftToRight
Sets Image transition direction as TopToBottom
Me.HubTile1.SlideTransition = TransitionDirection.TopToBottom
Sets Image transition direction as BottomToTop
Me.HubTile1.SlideTransition= TransitionDirection.BottomToTop