Article View: comp.sys.next.programmer
Article #480Re: Applying aribtrary transformations to a View's CTM
From: David Rochberg
Date: Fri, 07 Aug 1992 05:30
Date: Fri, 07 Aug 1992 05:30
16 lines
1083 bytes
1083 bytes
While I was explaining to myself why it was impossible to generate an odd isometry with scale and rotate, I realized that [self scale:1:-1] is a reflection, and so one can get odd isometries, like reflection about the diagonal. [self rotate:45]; [self scale:1:-1]; [self rotate:-45]; exchanges the view coordinate axes. However, I'd still like to know if it's possible to do this more directly. emabarrased at having overlooked the obvious but still curious, david
Technical Details
Message-ID:
<1992Aug7.093047.15011@cs.yale.edu>Path:
arc1-ca.pugleaf.net!sparky!uunet!gumby!yale!cs.yale.edu!rochberg-davidReferences:
<1992Aug7.073500.14435@cs.yale.edu>Show Full Headers
Complete Article Headers
Newsgroups: comp.sys.next.programmer Path: arc1-ca.pugleaf.net!sparky!uunet!gumby!yale!cs.yale.edu!rochberg-david From: rochberg-david@CS.YALE.EDU (David Rochberg) Subject: Re: Applying aribtrary transformations to a View's CTM In-Reply-To: rochberg-david@CS.YALE.EDU's message of Fri, 7 Aug 1992 03: 34:45 GMT Message-ID: <1992Aug7.093047.15011@cs.yale.edu> Sender: news@cs.yale.edu (Usenet News) Nntp-Posting-Host: toad.zoo2.cs.yale.edu Organization: Yale University Undergrad Computer Science References: <1992Aug7.073500.14435@cs.yale.edu> Date: Fri, 7 Aug 1992 05:30:37 GMT Lines: 17