[Gimp-user] Urban Acid script (buggy)

[Dave 77459]

Kevin,

Thank you giving me this information.  It is really useful to know.  I think
it ought to be part of the Migration guide, because naive script writers
like me don't know that functions like set-pt are locally defined.  I
thought I was using a built-in function.

It is further confused by the fact that the Windows version *does not*
complain that set-pt is not defined.  It is apparently defined elsewhere and
is being found.

To my mind, set-pt is either a global function or must declared locally and
if GIMP is finding a local function, then this is a bug.  It is being
handled two different ways; perhaps it is a 2.4.0 versus 2.4.1 difference?

Thanks for your help.  I think I'll try a different way of setting the
splines since this is static.

Dave

On Nov 7, 2007 7:29 PM, Kevin Cozens <kevin at ve3syb.ca> wrote:

> Dave 77459 wrote:
> > Owen,
> >
> > Thanks for confirming that it works in 2.2 under Ubuntu and crashes on
> 2.4.
> >
> > I too got that unbound error on 2.4 .  I declared all the variables,
> > which cleared that up under Windows.  I still got the unbound error in
> > Ubuntu, which is odd since set-pt is a function, not a variable??
> >
> > So I added this in the hopes it would clear up:
> >
> >        ; define the set-pt procedure (used to be embedded??)
> >        ; from http://adrian.gimp.org/scripts/shagadelic.scm
> >        (define (set-pt a index x y)
> [snip]
>
> The script calls set-pt but did not define the function. In GIMP 2.2functions
> in one file were defined in a way that made them available to be called by
> scripts in other files. While this can be a useful feature at times it can
> also cause problems.
>
> There were two scripts that defined point-list->double-array which took
> one
> argument. The routines were different and as a result, one of the two
> scripts
> appeared to be broken as it wound up calling the wrong version of the
> function.
>
> As of GIMP 2.4, the scripts which ship as part of the Script-Fu plug-in
> define
> the functions they need locally (ie. other scripts can't access them).
> This
> avoids the problems of adding a new script and finding out that some other
> previously working script no longer works.
>
> --
> Cheers!
>
> Kevin.
>
> http://www.ve3syb.ca/           |"What are we going to do today, Borg?"
> Owner of Elecraft K2 #2172      |"Same thing we always do, Pinkutus:
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