need help in understanding CCMoveTo?

I have downloaded the sample demo and trying to understand it.but Stuck on following code

id actionMove = [CCMoveTo actionWithDuration:actualDuration position:ccp(-target.contentSize.width/2, actualY)];
id actionMoveDone = [CCCallFuncN actionWithTarget:self  selector:@selector(spriteMoveFinished:)];
[target runAction:[CCSequence actions:actionMove, actionMoveDone, nil]];

How CCMoveTo moves object from one location to another as thi开发者_开发百科s object moves from left to right.

How CCMoveTo moves object from one location to another as this object moves from left to right.

not like left to right?

If the object(sprites) anywhere and you are willing to moveto some position from current position

example

current sprite position

(100,100)

then if you use CCMoveTo with (200,200) then it will move to (200,200)

then if you use CCMoveBy with (200,200) then it will move to

currentposition+neededposition

so (100+200,100,200) which implies (300,300);