Scale items with iCarousel

Question

I was trying to use iCarousel for one my solutions, I need to achieve something like the image below

Answer 1

I do not have enough reputation to comment so i have to ask a further question as a reply :(

@burax is it possible to layout items on linear line instead of a hyperbola but keep the resizing?

Regards, and sorry for asking like this

Edit : with random tries i achieved with this :

- (CATransform3D)carousel:(iCarousel *)carousel itemTransformForOffset:(CGFloat)offset baseTransform:(CATransform3D)transform
{
const CGFloat radius = [self carousel:carousel valueForOption:iCarouselOptionRadius withDefault:5050.0];
const CGFloat offsetFactor = [self carousel:carousel valueForOption:iCarouselOptionSpacing withDefault:0.8f]*carousel.itemWidth;
const CGFloat angle = offset*offsetFactor/radius;

//... the faster they shrink
const CGFloat shrinkFactor = 2.0f;
//hyperbola (now only for shrinking purposes)
CGFloat f = sqrtf(offset*offset+1)-1;


transform = CATransform3DTranslate(transform, radius*sinf(angle), radius*(1-cosf(angle)), 0.0);
transform = CATransform3DRotate(transform, angle, 0, 0, 1);
transform = CATransform3DScale(transform, 1/(f*shrinkFactor+1.0f), 1/(f*shrinkFactor+1.0f), 1.0);
return transform;
}

there is probably a better way but i am new to transformations :)