Hi all, Would appreciate any ideas. I have a line (begin x,y / end x,y). Its stored in an array. I can detect a touch that intersects my line (can delete etc; from array). What I would like to do now is to move that line to new location (based on drag), or, continue the line further (or indeed reduce its length) at either point. All based on touch. I am wrestling with how to do this. Apologies upfront if this is easy. Yep have googled and searched forums (might be my keywords) but found nothing on vectors. Loads on image movement. Again guidance on where to look would be cool also. Appreciate you taking the time. D.