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axl API for Class to Class value overrides

Is there an axl API that can derive a spacing override value in a class to class relationship?

Example: I have two net classes, A and B. I have assigned a spacing constraint set to the class to class relationship between A and B. I now choose to override the line to thru pin spacing on that relationship. I know I can derive the default value from the spacing cset using axlCNSGetSpacing, but I need to get to that override value. Net level overrides are easy to root out via the properties.

One method would be to export a dcf and parse it. I'd like to avoid that if possible.

Any thoughts on the matter would be greatly appeciated.

Ejlersen over 14 years ago

Hi Charlie
I've been looking for the same without any luck, I don't think it is possible in any way directly through skill.
Best regards
Ole
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Charlie Davies over 14 years ago

Ole,
Many thanks for looking.
Maybe eDave or fxffxf will offer a suggestion, but I suspect I'll be reduced to parsing the dcf.
Have a great day!
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fxffxf over 14 years ago

The only way to do this before 16.4 is parsing the dcf file. In 16.4, you can use axlCnsClassTableSeek to fetch the class table entry and get the override.
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