Re: [Gimp-developer] Enlarge image canvas with gimp_image _resize procedure

[Alessandro Francesconi <alessandrofrancesconi live it>]

Ok, what’s the name of the function that grows the boundaries?





Ale





Da: Michael Henning
Data invio: ‎venerdì‎ ‎28‎ ‎febbraio‎ ‎2014 ‎03‎:‎02
A: Alessandro Francesconi
Cc: gimp-developer-list gnome org





Are you also growing the layer boundaries? If you grow the canvas, but
not the layer boundaries, you won't be able to draw on the new canvas
area.

  -- drawoc

On Thu, Feb 27, 2014 at 4:53 AM, Alessandro Francesconi
<alessandrofrancesconi live it> wrote:
> I need to enlarge the area of an image using one of the available GIMP's procedures. So, instead of using 
> the GIMP's graphical interface and this tool http://docs.gimp.org/en/gimp-image-resize.html, I want to be 
> able to have the same effects on a C code.
>
>
> The function that should be called is this one, right? 
> http://oldhome.schmorp.de/marc/pdb/gimp_image_resize.html
>
>
> But it works when I need to shrink the canvas: on a 640x480 image, if I input smaller values the canvas is 
> actually cut. Instead, if I want to add a 20px transparent border along the area (so I type 680 and 520 px, 
> also with consistent offset values), the function just returns the original image.
>
>
> How does it work? Thanks
>
> Ale
> _______________________________________________
> gimp-developer-list mailing list
> List address:    gimp-developer-list gnome org
> List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
> List archives:   https://mail.gnome.org/archives/gimp-developer-list