[PCB_FORUM] Re: Change Circle Diameter

I seem to remember Cadence some years back talking up
how they were going to add dimensioning and make it all
good and stuff. That kinda happened, like half way, and
then they stopped after the first round.
I guess the "more important" stuff got in the
way (specctra).
Cadence, are you listening? Please start working on the
"mechanical" side of allegro again.

Thanks for your time,
Kevin

Gene Carman wrote:
Whole heartedly agree... in fact any feature that could be described
in geometric terms should be easily parametrically edited. This was
one of my biggest gripes with Mentor Graphics tools... They simply
did not support real word Geometries... IE circles, rectangles and the like.

Now the joke to me is that a DOS based too I used in the 80s (TANGOPCB)
did do exactly this... and that was a cheap little $900 tool then... and
it did DXF in and out too. Was a heavy hitter for RF design when used
with AutoCAD. Later I did work with HP ADS and sure enough... parametric
editing. Course you wouldn't even try to layout a motherboard with it.

Now I use these very expensive tools and they don't do basic geometric
work. Funny... sad.

Go one further and note that simple drawing tools do this too... such
as Corel draw. Click on an object and edit attributes... Gosh, what a concept. 

Now just in case there is a secret method...  Please tell us all.


-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx]On Behalf Of Kevin McCowan
Sent: Tuesday, June 28, 2005 9:17 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Change Circle Diameter


But, if you do find some secret method that Cadence
has kept to themselves, please let us know.
It seems as though changing the diameter (or
radius, for that matter) should be within the
scope of a tool like this.
Anybody agree?

Kevin McCowan
Sr. PCB Designer
TSI Telsys

Dal Locke wrote:

Vincent,

Unfortunately you cannot simply modify the diameter of an existing circle by changing an attribute. You might try zcopy with the option contract with the value between the two.

   -----Orig inal Message-----
   *From:* Vince Di Lello [mailto:vince.dilello@xxxxxxxxxxxxxxxx]
   *Sent:* Tuesday, June 28, 2005 10:46 AM
   *To:* icu-pcb-forum@xxxxxxxxxxxxx
   *Subject:* [PCB_FORUM] Change Circle Diameter

   Good morning fellow designers,



   Question for you all ….. is there a way to change the diameter of an
   existing circle without deleting it and redrawing it? I have a
   circle (shape) that has an outside diameter of 0.500” and I now want
   it to be 0.375”. Can this be done from within Cadence Allegro somehow?



   Vincent Di Lello, CID+

   Senior CAD Designer

   Kaleidescape Canada, Inc.

   vdilello@xxxxxxxxxxxxxxxx <mailto:vdilello@xxxxxxxxxxxxxxxx>

   (v) 519.772.6418

   (f) 519.772.6401

   (c) 519.835.4477

   www.kaleidescape.com <http://www.kaleidescape.com>






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