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Re: PV-WAVE widgets & Common blocks [message #698 is a reply to message #607]

Fri, 08 January 1993 02:08

atmnjl
Messages: 5
Registered: January 1993

Junior Member

In article <1993Jan7.090739.826@ualr.edu>, lindstrom@acs.harding.edu writes:
> In article <1993Jan6.175820.21889@new[Cs2.cis.umn.edu>,
> patel@sparky.drad.umn.edu (8-)) writes:
>
>> Only thing I dislike is passing the parametes by common block.
>> The program look like FORTRAN programs and I hate the common blocks.
>> I was wondering if PV-WAVE can come up with something like a global
>> declarations. This might ease a bit the parameter passing and
>> make it easy to add/delete parameters to be passed.
>
> Amen, brother. We are writing data analysis code which is
> currently ~5000 lines with LOTS os subroutines. There are
> some routines that contain 10 lines or more of common blocks!
> Global variables would greatly reduce at least this aspect of
> the code.

You could keep all your 'global' variables in a structure or two and declare
them in the common block. Using structures to group related variables together
is good practice anyway. I tend to keep all the varaibles dealing with a set
of widgets and their contents etc in one structure.

Someone suggested another method in this newsgroup a month or two ago, whereby
you can use the UVALUE for the widgets to pass information around. This was
for IDL, but I imagine it would work for PV-Wave.

Nathaniel Livesey
Dept. of Atmospheric Physics
Oxford.

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[Message index]

		Re: PV-WAVE widgets By: joslyn on Thu, 07 January 1993 10:35
		Re: PV-WAVE widgets By: pendleton on Thu, 07 January 1993 08:40
		Re: PV-WAVE widgets By: lindstrom on Thu, 07 January 1993 06:07
		Re: PV-WAVE widgets By: thompson on Wed, 06 January 1993 12:24
		Re: PV-WAVE widgets & Common blocks By: atmnjl on Fri, 08 January 1993 02:08
		Re: PV-WAVE widgets By: mberkley on Sat, 16 January 1993 13:53
		Re: PV-WAVE widgets By: thompson on Fri, 15 January 1993 13:34

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