Simple application to print part of an image - suggestions?

[Chris G]

On Tue, Mar 03, 2009 at 07:50:31PM -0800, Patton Echols wrote:
> On 03/03/2009 05:36 PM, Matthew Flaschen wrote:
> >  Robert Parker wrote:
> > > On Wed, Mar 4, 2009 at 1:53 AM, Chris G <cl at isbd.net> wrote:
> > >> A couple of times recently I have wanted to print just part of an
> > >>  image (.jpg) and, as far as I can see, none of the applications
> > >> I seem to have installed on my xubuntu lets me do this.
> > >>
> > >> I just want to view the image, select a bit of it with a marquee
> > >> and then print.  I guess the Gimp will do it but it's a bit OTT
> > >> just for printing something.
> > >
> > > sudo apt-get install imagemagick
> > >
> > > It's a suite of image processing programs. To select part of an
> > > image you probably want convert so 'man convert'
> >
> >  Yes, in particular look at the -crop option.
> 
> Certainly, but the command would be something like this:
> 
> convert rose.gif -crop 40x30+10+10  +repage  name.gif
> 
> where "rose.gif" is the original image, "40x30" is the pixels size to be 
> cropped, +10+10 is the offset telling the command the offset in the 
> image to position the crop +repage is so that the command reduces the 
> "canvas" to the cropped size and "name.gif" is the name of the resulting 
> image
> 
> >  Also, you can have convert output to postscript and pipe directly to
> >  a2ps or lpr for the actual print. 
> 
> Yup, and the command above would be modified to do that. (Sorry, I don't 
> know how to pipe to a printer)  But what OP would need to know the 
> dimensions of the original image, the dimensions of the crop and the 
> dimensions of the  offset.   Pretty sure that is not what was asked for.
> 
> >  Just don't use good paper while
> >  you're testing. :)
> 
> True, before you send to print, you can see the result with "display" 
> which is also part of the IM suite like this:
> 
> convert rose.gif -crop 40x30+10+10  +repage  - | display -
> 
> (hint - "q" to quit the display window, right click for options)
> 
All very well but none of this addresses the basic issue, having
selected the bit I want to print I want it to *fill* the A4 sheet of
paper. 

-- 
Chris Green