Re: x11: border lw 0 vs lw 1 for lt -1

[Ethan A M. <merritt@u.washington.edu>]

On Sunday 09 December 2007 06:10, Petr Mikulik wrote:
> > Not in the core. All the XResource interpretation is done in gnuplot_x11.
> > The routine that manages linewidths is pr_width().
> > 
> > > Further it seems that this is actually a multiplicate constant, not a line
> > > width in pixels as  "help x11 line" describes. Is this right?
> > 
> > Yes, that has always annoyed me.  But if you set all the XResource linewidths
> > to 1.0, then the multiplicative constant is effectively the true linewidth.
> > So most people probably don't notice.
> > 
> > I would be in favor changing it so that
> >     'set term x11; plot foo lt 3 lw 5'
> > really does use a linewidth of 5 pixels rather than using
> > (5 * getR(db,"linewidth3"))
> 
> I like prefer this as well.

Unfortunately it turns out that this doesn't work.
If we change the code to use the linewidths passed by the core driver
directly, then the default linewidths are never used.  That makes the
XResource values for default linewidths useless.

A related possibility is to add a global linewidth multiplier in the
core driver:
	set term x11 linewidth LW
That way if you want all the lines to be thicker, you can set this from 
inside gnuplot rather than having to use xrdb to change the values of
gnuplot*linewidthN in the XResource database.
Many other drivers already work like this.


-- 
Ethan A Merritt