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File: [local] / OpenXM_contrib / gnuplot / docs / old / Attic / README.nex (download)
Revision 1.1.1.1 (vendor branch), Sun Jan 9 17:01:09 2000 UTC (24 years, 7 months ago) by maekawa
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The 3.6 version of gnuplot is proud to include a new NeXTstep terminal driver. The new driver offers the following new features: 1) Multiple windows 2) Resizable windows 3) Direct print interface from windows 4) Titleable and re-addressable windows 5) A real NeXTstep-style interface to the terminal driver The driver runs as a separate application, and hence has it's own set of controls and interfaces. It registers itself with the operating system as a distributed objects "GnuTerm" server, and thereafter accepts requests from any gnuplot instances on the machine. Nick Strobel's original single-viewport NeXTstep terminal is available as an option to the next terminal. It can be invoked from the gnuplot command line as: gnuplot> set term next old There are several reasons why one might choose the older terminal. First, the new terminal will probably not work on NeXT systems running a pre-3.0 version of the operating system. Second, because all of the postscript must be buffered in order to allow re-sizing and printing of the window's contents, the new terminal can be a memory hog for very complicated plots. The original README.nex file for the original next terminal is included at the end of this document. Installation ------------ In addition to enabling the #include next.trm in term.h before compiling gnuplot, the GnuTerm.app application must be separately built and installed. All of the source code is included in the NeXT subdirectory of the gnuplot distribution. GnuTerm.app can be built for the current architecture by cd-ing to the NeXT directory and type "make". For more complicated installations, or to build the application "FAT" (to run on more than one processor architecture), it's easiest to fire up NeXT's ProjectBuilder.app and open NeXT/PB.project. GnuTerm.app can be installed in any directory contained in the WorkSpace's ApplicationPaths dwrite. For most situations, this means installing GnuTerm.app in either /LocalApps or ~/Apps. If you wish to locate the GnuTerm.app somewhere other than ~/Apps or /LocalApps, you can "setenv GNUTERMPATH /newpath" to tell gnuplot where to find it. Example (wherein GnuTerm.app is in /LocalApps/Data): host% setenv GNUTERMPATH "/LocalApps/Data" Robert Lutwak robert@amo.mit.edu July 14, 1996 Following is the README.nex that accompanied the original (single viewport) next terminal, which is still accessible as "set term next old". ------------------------------- This directory contains version 2 of the additional files you'll need to get gnuplot3.0 to display it's postscript directly to a window instead of going through the klunky process of writing the postscript to a file and launching Previewer to view the file. Note that all input is still done at the shell level! Fancier NeXTStep interfaces will be a future project. This version is faster and leaner than the old method. It also does not eat up swap space like the older version (this was particularly noticeable when doing animation-like plots). To do this I used DPS function calls instead of creating a NXImage and compositing the stream of commands. I based my code on the program called "epsview" in the hackkit tar file on the archive servers. The next.trm (next terminal) is basically the post.trm (postscript terminal) with the fprintf replaced by DPSPrintf and outfile by the DPSContext d. You'll also see that I also used some code (with modifications) from David S. Joerg's MovieApp. Using the DPS functions enabled me to slim down the EpsViewer.[hm] and EPSView.[hm] files. No claim is made to code elegance or to it being a good example of objective-c coding. This is my first (well, second, sort of) objective-c program. It seems to work for me. Any constructive criticism would be appreciated. I can be reached at strobel@phast.phys.washington.edu cheers! nick strobel -----------------------------------