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Create custom ruler to report pre- or post-shrink value

Sheppie

Hi,

We're working on a product in a technology which gets shrunk down. What we draw in the layout in a layout editor window, will be shrunk down by 0.855. So a drawn dimension of 1um (1000nm) becomes 0.855um (855nm). Currently we're in the floorplanning phase and in discussions about the final die-size. So every time I measure the new die-size (after more and more blocks report a more realistic area), I have to remember to apply this scaling factor before I report any new values.

With the bindkey <k>  the default ruler can be used to measure, and this ruler measures drawn dimensions. I'd like to have somehting like <shift.><k> to give me a ruler which applies the scaling factor to the measurement. Preferably in a different collor to be able to destinguish from one another.

Is this possible? Can I define my own ruler?

Thank you in advance.

With kind regards,

Sjoerd

  • Sheppie
    in reply to Andrew Beckett

    Hi Andrew, This is code from many many years ago, before I learned that a procedure can do type-checking itself. It depends on what type of procedure I write, but if it is for common/general use, I do the type-checking like you proposed, otherwise I just skip it. And yes, it eliminates a lot of lines of code. Kind regards, Sjoerd

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