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From: oliver@unc.UUCP
Newsgroups: comp.sys.amiga
Subject: Help with Diga!... Please
Message-ID: <1114@unc.cs.unc.edu>
Date: Tue, 1-Sep-87 12:35:58 EDT
Article-I.D.: unc.1114
Posted: Tue Sep  1 12:35:58 1987
Date-Received: Wed, 2-Sep-87 07:19:13 EDT
Organization: CS Dept., U. of N. Carolina, Chapel Hill
Lines: 71


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