oliver@unc.UUCP (09/01/87)
I recently bought a copy of Aegis Diga! to use as a Tektronix 4010 emulator to view plots made with UNIX graph|plot. It usually does a fair job, but I have a couple of specific problems, and I was hoping that there are a couple of you out there who are familiar with the package and with UNIX graph and plot. Basically, if I have a simple contour such as 332 170 330 162 330 162 328 158 328 158 326 152 326 152 318 146 318 146 312 142 312 142 302 138 302 138 292 136 292 136 282 132 282 132 274 128 274 128 266 124 ..... etc. the emulator does an OK job of drawing the contour using the commands % graph < foo.con | plot However, I am trying to preview the plots before sending them to a machine which requires break between the contour lines. For that machine, I need to format the contour as below: 332 170 330 162 " " 330 162 328 158 " " 328 158 326 152 " " 326 152 318 146 " " 318 146 312 142 " " 312 142 302 138 " " 302 138 292 136 " " 292 136 282 132 " " 282 132 274 128 " " 274 128 266 124 " " and run it as % graph -b < foo.con | plot -Tdev (for those not conversant with graph, the -b extension tells the program to tell the plotter to break the graph after each label -- a blank space in this case) Now, running the second contour above on any of the output devices I use gives me the appropriate contour except when I use Diga! on my Amiga (I also get the appropriate contour when I use a real Tektronix terminal). When I use Diga!, most of the contour comes out OK, except some segments which are offset to the right -- basically the machine writes the blank space as a label but does not return to the previous endpoint to continue the contour, instead continuing from the position after the label. Has anyone else run across the problem? I have also tried Online!'s Tek emulation, which does an even worse job -- printing out not quite random garbage on the screen. Does anyone know Aegis's phone number? Thanks for any help you might be able to give me. Peace, Bill Oliver
papa@uscacsc.UUCP (09/02/87)
This message might be considered commercial by some folks. Please skip to
the next one in that case.
I am sorry to tell you that you are out of luck with tring to get perfect
plots with the Tektronix emulators included in either Diga! or Online!
Both of them basically handle only MOVE and DRAW commands. The UNIX plot
utilities are the ones that use just MOVE and DRAW plus some text
positioning commands. If your plot is "simple" it might work with Diga! or
online!. It is is a little "complex" (like use graph, or any of the UNIX
System V plot utilities, gas (additive sequences), af (arith functions),
or hist) then the plot is bad almost 100% of the time. The Tektronix 4014
emulator included in A-Talk Plus emulates ALL Tektronix 4010 and 4014 commands,
fonts (4) and interactive crosshair cursor, and supports the UNIX plots
utilities for both 4.2BSD and ATT System V (just to name the ones you are
interested in).
-- Marco
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