Use dimensions of the dynamic views for calculate area and also perimeter

I have products like banners, that need to price it by area dimensions but have add-on calculated in perimeter lenght, like the reinforced board.

I can use woocommerce product add-ons, but i don't want and can't introduce dimensions two times, in designer and in product for calculate it.

Will be very useful the possibility to calculate add-ons in fancy with dimensions (area or perimeter as well) or to take ad dynamic views the Woccomerce product add-ons official plugin.

Thanks

D