Community Forums RAVEL DRC Programming for IC Packaging and… Constants defined n Ravel?

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Constants defined n Ravel?

Martin Biehl
Is there a way to define constants in Ravel? I have some numbers that I would like to define in one place for use in the code. They are not constraints so I do not want to define them as such since that would make it possible to change the values.
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  • Martin,

    You can use macros to define constants. Simply define a macro of no arguments returning the constant value. To retrieve the value, call the macro. Here is an example:

    (macro PI () 3.141593)

    (define edge_circumference
      (transform (e) circular_edge
        (e 2 * (PI) * (radius e))))

     Kind regards, Björn

     

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  • Martin,

    You can use macros to define constants. Simply define a macro of no arguments returning the constant value. To retrieve the value, call the macro. Here is an example:

    (macro PI () 3.141593)

    (define edge_circumference
      (transform (e) circular_edge
        (e 2 * (PI) * (radius e))))

     Kind regards, Björn

     

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