Re: fontsize vs fontscale?

[Philipp K. J. <ja...@ie...>]

On Sun, 29 Mar 2015 14:21:55 -0700
sfeam <sf...@us...> wrote:

> On Thursday, 26 March 2015 03:53:22 PM Philipp K. Janert wrote:
> > 
> > I was wondering: how is "fontscale" to be used?
> > 
> > Is the primary idea that I can change the font 
> > size, even without knowing what it actually is?
> 
> The primary use that I see is rescaling a previously composed
> figure for a new use.  Suppose you originally composed a 
> figure for screen display, with appropriate font sizes,
> line widths, dash lengths, and so on.   Now you want to use
> it for publication, but typically a publisher requests figures
> to be suitable for printing at 300 dpi.  This is roughly
> three times a typical workstation screen display resolution.

I see. Makes sense. Thanks for the clarification.

> 
> If you just change the requested size of the figure by a
> factor of 3, then all the lines will be too thin, the fonts
> will be too small, and dashed lines will become less distinguishable.
> The fix is to keep the same commands that generated your
> original plot but scale up those properties to match the
> scale-up of the canvas size.
> 
> E.g.
> 
>   # Display figure on the screen
>   set term png size 700, 500
>   set output '|display png:-'
>   load "Figure.gp"
>   pause -1
> 
>   # Now rescale the same figure for publication
>   set term png size 2100, 1500 fontscale 3 lw 3 dl 3
>   set output 'Figure.png'
>   load "Figure.gp"
> 
> NB: In gnuplot 5 dashlength scales with linewidth already,
>     so the "dl 3" part is not required.  But that was not
>     true in gnuplot 4.
> 
> 
> 	Ethan
> 
> 
> 
> > 
> > Best,
> > 
> > 		Ph.
>