How to link two parameters in Catia?

Suppose i make a pipe with two parameters length and dia such that the length is twice as dia
Now how do i link both the parameters such that whenever i make change in one the other also change
I did (length=2*dia)
But that means length depends on dia
If i change dia length changes
But i want vice versa
By this method i cannot enter the value of length i can just control dia
So what if i want to enter either of the value the other gets updated

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1 Answer

You can only link one dimension to other one. And you can only change the source dimension. Other dimension will be calculated from source. If you want both can changeable just keep them manual. For just 2 parameter it is not problem.

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