Re: [Gnuplot-info] Symbol font in enhanced mode with png

[Martin D. W. <wei...@as...>]

On Tue, 15 Jun 2004 15:49:09 +0200 (CEST)
Hans-Bernhard Broeker <br...@ph...> wrote:

> On Tue, 15 Jun 2004, Martin D. Weinberg wrote:
> 
> > On Tue, 15 Jun 2004 13:42:09 +0200 (CEST)
> > Hans-Bernhard Broeker <br...@ph...> wrote:
> > 
> > > On Mon, 14 Jun 2004, Martin Weinberg wrote:
> > > 
> > > > I seem to have a problem accessing the symbol font in enhanced mode
> > > > with the png terminal.  Superscripts and subscripts work fine but
> > > > use of the symbol font gives me:
> > > > 
> > > > 	gdImageStringFT: Could not find/open font
> > > > 
> > > > I have installed symbol.ttf.   Has anybody got a clue?  Thanks!!
> > > 
> > > Installed it *where*?  How exactly is gnuplot informed about it?
> > 
> > I copied it to /usr/share/fonts/truetype, the dir which contains the
> > truetype fonts.  libgd is clearly able to find this path since it finds
> > the Arial font in this same directory, that I specified in the "set
> > terminal" command.
> 
> I suspect you overlooked updating the catalog file in that directory,
> then.  Generally speaking, it's probably not a good plan to tinker with
> the contents of directories owned by the distribution like that.  This
> kind of work is what the /usr/local hierarchy is for.
> 
> The libfreetype experts can probably enlighten your more thoroughly...
> 

So here is the scoop: libgd only uses path searching to find fonts.  The
reason that symbol wasn't found the first time is that I used the capital
name, e.g. "{/Symbol=18 k}", instead of symbol.   When I made the new
directory in /usr/local, I had both symbol.ttf and Symbol.ttf entries.

I do agree with you about adding stuff to /usr/local rather than /usr.

Anyway, everything is now working perfectly.  The advantage of writing
png directly rather than ps -> png is file size and better looking fonts.

Thanks again!