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- From: dagenais@vlsi.polymtl.ca (Michel Dagenais)
- Newsgroups: comp.lang.modula3
- Subject: Re: Rotated text in Trestle (SUMMARY)
- Message-ID: <DAGENAIS.92Nov16110613@pollux.vlsi.polymtl.ca>
- Date: 16 Nov 92 16:06:13 GMT
- References: <DAGENAIS.92Nov12090635@pollux.vlsi.polymtl.ca>
- Sender: news@vlsi.polymtl.ca (USENET News System)
- Organization: Ecole Polytechnique de Montreal, Canada
- Lines: 25
- In-Reply-To: dagenais@vlsi.polymtl.ca's message of Thu, 12 Nov 1992 14:06:35 GMT
-
-
- Thanks for all the replies! Two replies suggested to go with a Postscript
- VBT and two with Bezier curves. (Implied is that the X11R5 font server
- would not supply rotated fonts :-)).
-
- While having a Postscript VBT to display encapsulated postscript diagrams
- is a very good idea, using postscript to communicate commands for a tree of
- VBTs that need to be redisplayed independently could be messy, not terribly
- efficient and does not fit well the Trestle structure.
-
- Mark Manasse provided a surprisingly simple recipe to get bitmaps from
- Bezier curves. I knew such things could be done on X11 but ignored that
- all the right hooks were present in Trestle (allocate an off-screen pixmap,
- draw the Bezier curves on it, capture the result in a memory pixmap and
- free the off-screen pixmap). Therefore, we will most likely take this path
- and use the GNU fontutils Bezier curves and font metrics.
-
- --
- ---------------------------------------------------------------------
-
- Prof. Michel Dagenais dagenais@vlsi.polymtl.ca
- Dept of Electrical and Computer Eng.
- Ecole Polytechnique de Montreal tel: (514) 340-4029
-
- ---------------------------------------------------------------------
-