How to generate Schematic from Layout?

How to generate Schematic from Layout in ADS 2011?

Please help me guys, I want to how to generate schematic from Layout in ADS 2011

Thanks in advance

What kind of layout? IC? PCB?

It's PCB , please help me in details , thus I can do it nicely...many thanks for reply

Usually you do it the other way: you draw the schematics and then you build the layout.

If you draw some traces which have specific length and width (i.e., they are transmission lines) you can go to the Edit manu and convert traces to transmission lines. Then you can put those transmission lines in the schematic.