Re: [Plplot-devel] gd driver and dlopen() flags

[Alan W. I. <ir...@be...>]

On Tue, 17 Sep 2002, Joao Cardoso wrote:

> There is something strange with the last x08c.c that I have just cvs commited;
> colors look strange under the png driver, either with -drvopt optimize or
> not. But I thing that it has nothing to do with the macro definition.

I will look at this.

> It looks like freetype does not find the specifyed fonts. Can anyone give me a
> hint?

You have to set some environment variables to inform plfreetype where the
fonts are; I know it is clumsy, but it should work for now until we can get
better PLplot freetype font finding under Linux (perhaps with Keith
Packard's fontconfig if/when it becomes standard part of distros?).

The environment variables are mentioned in plfreetype.c.  The relevant names
are largely self-documenting and are

PLPLOT_FREETYPE_FONT_PATH (trailing slash required)
PLPLOT_NORMAL_FONT
PLPLOT_ROMAN_FONT
PLPLOT_ITALIC_FONT
PLPLOT_SCRIPT_FONT
PLPLOT_SYMBOL_FONT

I have the standard X11 fonts, including type1 and trutype fonts:
>
> #: xset q
> ...
> Font Path:
> ...,/usr/X11R6/lib/X11/fonts/TTF,/usr/X11R6/lib/X11/fonts/truetype,/usr/X11R6/lib/X11/fonts/Type1,/usr/X11R6/lib/X11/fonts/URW,...

So I believe you could set PLPLOT_FREETYPE_FONT_PATH to
/usr/X11R6/lib/X11/fonts/ and then set the other names to TTF/Arial.ttf (or
whatever is appropriate for your system for normal, roman, italic, script,
and symbol fonts).  Please let us know if that works for your situation.

Alan