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- From: olasov@cs.columbia.edu (Ben Olasov)
- Subject: Re: parametric drawing
- Message-ID: <C1HLyF.9K4@cs.columbia.edu>
- Originator: olasov@ground.cs.columbia.edu
- Sender: news@cs.columbia.edu (The Daily News)
- Organization: none
- References: <1993Jan26.153515.17774@news.columbia.edu>
- Date: Wed, 27 Jan 1993 00:42:15 GMT
- Lines: 38
-
- In article <1993Jan26.153515.17774@news.columbia.edu>
- dj@shiva.gsb.columbia.edu writes:
- . . .
- >Essentially, I am looking for creating drawings with dimensions that
- >are "symbolic", so that associating actual numbers with the symbols
- >will automatically resize and redraw the picture to scale.
-
- I'm not sure you can do this exactly as you describe it - the entities
- being dimensioned need a literal value for the initial iteration in
- the drawing. One approach would be to attach XED (extended entity
- data) with a 'transformable data type' to the entities whose
- dimensional values are parametric, and later use the transformable
- data to procedurally update them.
-
- Alternatively, (there are plenty of alternative ways to do this)
- you could have the XED to take the form of something along the
- lines of 'attached procedures' rather than data, which would
- conditionally cause the entities to be resized.
-
- >Have people any ideas about such capabilities? Any experience with these
- >packages? Prices, addresses ...?
-
- I just saw an ADS application yesterday written by John Walker
- for maintaining component dimiensions in a Lotus 123 spreadsheet
- and have the changes propogate to the AutoCad drawing of the
- components. The link is two-way - AutoCad can also be used to
- update the Lotus spreadsheet. I haven't tried it yet but it
- looks interesting. If you'd like to take a look, it's on an
- Internet node in Switzerland.
-
- Host liasun3.epfl.ch (128.178.155.12)
-
- Location: /pub/acad
- FILE rw-r--r-- 28865 Oct 23 14:14 123-rpc.tar.Z
-
- Ben
- --
- Ben Olasov olasov@cs.columbia.edu
-