fexible prices in custom fields

Hi, is it possible to use a custom field to calculate prices in form of free input for millimeters as witdh an height.
I mean, that my Customer want to buy an article with 80 mm x 40 mm, 90 mm x 20 mm, the price for 100 mm x 100mm is 20 €.
Therefore the first costs 6,40 € and the 2 second costs 3,60 €.

i get this answer:
You have to create two custom fields, one for the length the other one for the width.
Then add some js code in the view "product / show" to add action onmouseout of the input.
And it will calculate the price depending on the original price and the dimensions.

Then change the price value in the php var.

Has anyone a solution or want to code this? And how much is the cost for it?

Rainer

Curious - Did you ever get a solution for this?

Hi, no i get no solution.