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20010330: graphics commands in gempak56 (fwd)

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  • Subject: 20010330: graphics commands in gempak56 (fwd)
  • Date: Fri, 30 Mar 2001 10:25:43 -0700 (MST)

---------- Forwarded message ----------
Date: Fri, 30 Mar 2001 08:48:03 -0700 (MST)
From: Steve Chiswell <address@hidden>
To: David Knight <address@hidden>
Subject: Re: graphics commands in gempak56

David,

In text, 3 extra parameters are being used for rotation and justification. So,
you probably need to start looking at the number of parameters being passed.
Typically gtext and gtextc. Also, note that there is another incarnation of
gptext in the distribution- so you might want to see what features that
program has in relation to what you need.

Also, the call to gcirc has changed. You can look in the $NAWIPS/versions
directories for logs on routines that have changes along the way from 5.4 to
5.6.

Steve Chiswell
Unidata User Support

On Fri, 30 Mar 2001, David Knight wrote:

> Hi Chiz,
>      We're porting local programs to gempak5.6.
> The calculation and grid manipulation programs
> seem to have moved with no problem.
> But, with programs involved in graphics we were
> not so lucky. Programs we have to generate
> graphics (like the old gptext and gpline)
> seg fault. And t5, an old tektronix 4105
> device driver is also problematic.
> 
> I assume there have been changes in the
> graphics handling in gempak56
> compared to gempak54. Before we get
> too deep in the code, can you give
> us tips on where we might start looking?
> 
> Thanks
> David
> 
>