Re: [Swftools-common] resizing

[Daniel Caillibaud]

Matthias Kramm a écrit :
> On Wed, Jul 16, 2008 at 04:49:28AM +0700, Cornelis Brouwers <address@hidden> 
> wrote:
> > Is there any way to resize the images that come from pdf to swf with pdf2swf?
> >  
> > sometimes images are like 2000x1000 while it's sufficient to have like 200x100.
>
> pdf2swf -s subpixels=1 file.pdf -o file.swf
>
> converts images so that they have exactly the resolution they need
> for normal (unzoomed) display. (Like 200x100, in this case)

I just see this interesting post.
Since which swftools version is this implemented ?

This option is a good one, but I don't really understand how to use it in case I want an image just at the double 
resolution (to have the good resolution with a zoom x2).
I tried -s subpixels=0.5 and -s subpixels=2 but in both case, I have a better result on zoom without this option set. Is 
this normal ?

--
Daniel

PS: I didn't posted on this list yet but I really apreciate these tools, in 
some case I really save hours of boring work ;-)

PS2: just for the fun, my last command line with png2swf & swf combine (to put a big png (zoom) in a 600x820 swf with 
the good position). We can see that most of the work is to write the right awk expression, not choosing the good args 
for swftools ;-)

for f in png_src/*.png; do \
  echo; echo $f; \
  eval $(identify $f|sed -e 's/.*PNG \([0-9]\+\)x\([0-9]\+\).*/\1 \2/'|awk 
'{x=$1; y=$2};
    END {
      a=60000/x; b=82000/y;
      if (a < b) {
        scale=a; decaly=(820-y*scale/100)/2;
        if (decaly >20) arg="-y 20 ";
        else arg="-y " decaly -decaly % 1
      } else {
        scale=b; decalx=(600-(x*scale/100))/2; arg="-x " decalx - decalx % 1
      };
      print "scale=" scale " arg=\"" arg "\""
    }'); \
  echo "We have scale=$scale and arg=$arg"; \
  png2swf -s $scale -o tmp.swf $f; \
  swfcombine -T -o swf/$(basename $f .png).swf white_background_600x820.swf 
$arg tmp.swf;\
done;