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- Newsgroups: comp.windows.interviews
- Path: sparky!uunet!vuse.vanderbilt.edu!ejmrs
- From: ejmrs@vuse.vanderbilt.edu (Eric J. Manders)
- Subject: real-time graphics and IV
- Message-ID: <BxtJy6.3z6@vuse.vanderbilt.edu>
- Originator: ejmrs@edith
- Sender: news@vuse.vanderbilt.edu
- Nntp-Posting-Host: edith
- Organization: Vanderbilt University School of Engineering, Nashville, TN, USA
- Date: Mon, 16 Nov 1992 17:15:40 GMT
- Lines: 43
-
- I am considering using interviews for buiding the GUI for a project I
- am working on. My experience with interviews is solely from reading
- this newsgroup to see what goes on and having read some papers on IV.
- I have just finished reading the 'Tale of Two Toolkits' paper by
- Bashir and Sternlicht.
-
- The project I am working on deals with signal monitoring. The whole
- system is supposed to work in real-time (soft), therefore speed in
- graphics is an issue. In the present application the signals
- do not exceed frequencies of a few hundred hertz and most signals
- will be an order of magnitude slower than that. Assume a sparc10
- platform.
-
- One of the things that I would like to try is to have a programmed
- reconfiguration of the display to draw the attention of the user to
- significant events in the signals when they occur (amongst other
- things, I am trying to address the problem of information overload for
- the user).
-
- The monitoring/processing part and the GUI will be separate UNIX
- processes using message passing for control and having a shared memory
- segment for data. The programming of the system so far has been done
- in C++.
-
- As I see it the advantages of using IV for me are:
- 1) continuation of the OO support of C++ throughout the development
- of the GUI
- 2) high level concepts in IV will hopefully help me in developing the
- reconfiguation capability.
-
- My main concern though is whether those same high level concepts that
- make interviews a nice development tool get in the way of achieving
- fast graphics. The Bashir/Sternlicht paper notes a performance
- disadvantage of IV compared to Xt in event handling.
-
- I would appreciate some comments, ideas or past experiences related to
- this, and opinions as to what extent IV is suited for developing a GUI in a
- real-time application.
-
- Thanks,
-
- -- Eric.
-
-