RE: Examples from "Usage" webpages produce errors

Sorry Jos, I assumed from the error that you were on Windows
(gasp!).

Oddly that command (with the quotes) works perfectly on
Windows, but it
fails on my debian system with IM 6.3.3 with "unable to
parse expression
`xx=i'"...

Chris.

> -----Original Message-----
> From: Jos Vos [mailto:josxos.nl] 
> Sent: 09 March 2007 14:03
> To: Christopher Roberts
> Subject: Re: [magick-users] Examples from
"Usage" webpages 
> produce errors
> 
> 
> On Fri, Mar 09, 2007 at 01:33:37PM -0000, Christopher
Roberts wrote:
> 
> > You have to replace the apostrophes with quotation
marks
> > 
> > convert -size 100x100 xc: -fx "xx=i/w-.5;
yy=j/h-.5; 
> > rr=sqrt(xx*xx+yy*yy); 1-rr*1.42"
gradient_fx_radial.gif
> 
> This doesn't work either (ImageMagick 6.2.8.0) and that

> should not make a difference at all, as the ' and
" are 
> interpreted by the UNIX shell and as there are no shell

> variables etc. used, both ' and " will result in
the same 
> string argument after -fx.
> 
> -- 
> --    Jos Vos <josxos.nl>
> --    X/OS Experts in Open Systems BV   |   Phone: +31
20 6938364
> --    Amsterdam, The Netherlands        |     Fax: +31
20 6948204

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