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Now we assign to the holder of all the images an ON_ENTERFRAME event and in it we perform some calculation to update the holder and the imgHolder postion and scale to have a nice transition between the images. Code
private function dispatchOnEnterFrame ( e ) { //if the diffrence=0 do nothing if (diffX== 0 ) return; //else update the sliding of our image holder with easing imgHolder. x+= (finalX-imgHolder. x ) / 6; //and also update the current X aside but with a greater easing coef to have some retard in time //between the 2 transition cX+= (finalX-cX ) / 12; //generate a percentage var per= 100 * ( 1- (finalX-cX ) /diffX ); //and ease the current percentage depending on the current generated percentage //this will assure the smoothing and the continus animation percentage+= (per-percentage ) / 12; //update the scaling to have the zoom in out effect holder. scaleX= 1- (. 5 ) * Math. sin ( Math. PI *percentage / 100 ); holder. scaleY= 1- (. 5 ) * Math. sin ( Math. PI *percentage / 100 ); }