Trans.: Re: [magick-developers] How to use "density" parameters

[m.zewe at free.fr]

----- Message transféré de m.zewe at free.fr -----
   Date : Mon, 29 Oct 2007 09:30:01 +0100
     De : m.zewe at free.fr
Adresse de retour :m.zewe at free.fr
  Sujet : Re: [magick-developers] How to use "density" parameters
      À : Glenn Randers-Pehrson <glennrp at comcast.net>

Selon Glenn Randers-Pehrson <glennrp at comcast.net>:

> At 06:14 PM 10/26/2007 +0200, you wrote:
> >
> >
> >Hello,
> >
> >I want to print picture with high resolution. I know that the attribute
> linked
> >to the resolution is the "density" parameters. But my problem is that I
> don't
> >know
> >how I can use it...
> >
> >I try different way
> >image->set(density=>"200")
> >image->set(density=>"200x200") etc...
> >
> >But the effect done is that the pictures are smaller, so I have to multiply
> the
> >size of the items represented on these pictures...
>
> Yes, that is how "density" works.
>
> >I just want to reduce the
> >size of one picture pixel, not want to play with the size (i.e make zoom in
> and
> >zoom out to look better...)
>
> You are asking for a coordinated "density" and "resize" to obtain the
> same size picture with a different amount of pixels.  That might be a
> useful feature.
>
>     -newdensity "200"
> would achieve
>     -resize (100*200/current_density%) -density 200
>
Thanks a lot for your helpfull responses...

But I don't understand how these parameters are coordinated...
Can you explain a little more...For example the value 200 in parameter of the
resize fonction is the new density value??? -newdensity "200" don't know what it
means...
May be a full example can be usefull...
I work with the interface PerlMagick, so it's a little harder to understand you
example...

Again, thanks...



> >Is anyone here who know how parameterize this attribute???
>
> See above
>



----- Fin du message transféré -----