Re: print question

[Daniel Oberhoff]

Hi,

octave:12> which pcolor
pcolor is the user-defined function from the file
/Users/daniel/octave/plot-1.0.0/pcolor.m

octave forge function. But imagesc does something very similar, if  
you want base octave stuff.

I _do_ want vector graphics, these patches are lowres, i.e. 5x5, and  
in inkscape I shear them around to emulate 3d stacks, and that would  
look rather bad using pixel graphics.

Cheers,

Daniel

Am 26.06.2007 um 16:08 schrieb Søren Hauberg:

> Hi,
>   First of all, what is "pcolor"? I assume it's a function you've  
> written that displays an image...
>   Anyway, I don't quite understand your problem. Is the image  
> interpolated when shown on screen or when you look at the saved  
> image with a pdf viewer? On my system gnuplot doesn't do any  
> interpolation when displaying images. If it is the pdf that's  
> interpolated then I guess it's due to your PDF viewer. Why not save  
> the image to disc as a PNG (or similar) file? Vector graphics (like  
> PDF) is just awful for images.
>
> Søren
>
> Daniel Oberhoff skrev:
> > Hi all,
> > I am running a self compiled octave 2.9.12 together with an  
> > equally  self compiled gnuplot 4.3. I make a plot of a small  
> > gaussian image  patch like this:
> > [x,y]=meshgrid(-2:2,-2:2);
> > g=exp(-(x.*x+y.*y)/8);
> > pcolor(g);
> > and then print it like this:
> > print -dpdf gausmask_octave.pdf
> > curiously the print receives some interpolation, fuzzing up the   
> > originally blocky image, which is not what I want, because this  
> > is  for a paper and I want to show what I actually use. Is there a  
> > way to  switch this smoothing off?
> > btw, is it a known bug in octave 2.9.12/gnuplot 4.3 that the hold   
> > setting is always on, i.e. I always have to clf before a new plot  
> > and  hold on/off has no measurable effect?
> > anyhow, love the image capability brought out in gnuplot now.
> > Best
> > Daniel
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