A suggestion ...
Alan
-------- Original Message --------
Subject: Re: missing pixels for Windows PNG driver
List-Post: gretl-users@gretlml.univpm.it
Date: Mon, 02 Nov 2009 11:33:28 -0800
From: sfeam <sfeam(a)users.sourceforge.net>
Reply-To: sfeam(a)users.sourceforge.net
Organization: gnuplot development team
Newsgroups: comp.graphics.apps.gnuplot
We request full hinting for png output but
turn it off for pdf output. You could try this simple change to cairo.trm:
--- ./cairo.trm.buggy 2009-09-13 10:49:16.000000000 -0700
+++ ./cairo.trm 2009-11-02 11:30:02.000000000 -0800
@@ -418,8 +418,8 @@ void cairotrm_init()
surface = cairo_image_surface_create( CAIRO_FORMAT_ARGB32,
plot.device_xmax /*double width_in_points*/,
plot.device_ymax /*double height_in_points*/);
- /* png is bitmapped, let's do the full hinting */
- plot.hinting = 100;
+ /* png should like hinting, but there seems to be a problem */
+ plot.hinting = 0;
/* png is produced by cairo "image" backend, which has full
support
* of OPERATOR_SATURATE */
plot.polygons_saturate = TRUE;
