Hello All,

I've got some nice plots generated for the web, and these look just  
great as .png from plplot.

Am now working on publication-quality graphics and would like to use  
pdf, but there seems to be a problem with the drivers. The error  
message is copied below.

Has anyone else seen this before? The color postscript drivers do not  
throw an error, but the output looks quite different from the png.

-Ed

Versions from pkg-config:
$pkg-config --modversion --libs plplotd-f77
5.9.4
-L/usr/local/lib -lplplotf77d -lplplotf77cd -lplplotd -lltdl -ldl -lm - 
lcsirocsa -lcsironn -lqhull -lqsastime -lfreetype

$pkg-config --modversion --libs plplotd-gnome2
5.8.0
-L/usr/local/lib -lplplotgnome2d -lplplotd -lltdl -ldl -lm -lcsirocsa - 
lcsironn -lqhull -lqsastime -lfreetype

$ pkg-config --modversion cairo-pdf
1.6.0

$ pkg-config --modversion pangocairo
1.20.5


OS version:
$cat /etc/issue
Ubuntu 8.04.3 LTS \n \l

and uname:
$ uname -a
Linux servername.edu 2.6.24-23-server #1 SMP Mon Jan 26 01:36:05 UTC  
2009 x86_64 GNU/Linux


The runtime error message I receive is cut-and-paste here:

(process:25528): GLib-GObject-WARNING **: cannot register existing  
type `PangoCairoFcFontMap'

(process:25528): GLib-GObject-WARNING **: cannot register existing  
type `PangoCairoFontMap'

(process:25528): GLib-GObject-CRITICAL **:  
g_type_interface_add_prerequisite: assertion `G_TYPE_IS_INTERFACE  
(interface_type)' failed

(process:25528): GLib-GObject-CRITICAL **:  
g_type_add_interface_static: assertion `G_TYPE_IS_INSTANTIATABLE  
(instance_type)' failed

(process:25528): GLib-CRITICAL **: g_once_init_leave: assertion  
`initialization_value != 0' failed

(process:25528): GLib-GObject-CRITICAL **: g_object_new: assertion  
`G_TYPE_IS_OBJECT (object_type)' failed

(process:25528): GLib-GObject-WARNING **: cannot register existing  
type `PangoCairoFontMap'

(process:25528): GLib-GObject-CRITICAL **:  
g_type_interface_add_prerequisite: assertion `G_TYPE_IS_INTERFACE  
(interface_type)' failed

(process:25528): Pango-CRITICAL **:  
pango_cairo_font_map_create_context: assertion  
`PANGO_IS_CAIRO_FONT_MAP (fontmap)' failed

(process:25528): Pango-CRITICAL **: pango_layout_new: assertion  
`context != NULL' failed

(process:25528): Pango-CRITICAL **: pango_cairo_update_context:  
assertion `PANGO_IS_CONTEXT (context)' failed

(process:25528): GLib-GObject-CRITICAL **: g_object_unref: assertion  
`G_IS_OBJECT (object)' failed

(process:25528): Pango-CRITICAL **:  
pango_layout_set_markup_with_accel: assertion `PANGO_IS_LAYOUT  
(layout)' failed

(process:25528): Pango-CRITICAL **: pango_layout_get_pixel_extents:  
assertion `PANGO_IS_LAYOUT (layout)' failed

(process:25528): Pango-CRITICAL **: pango_layout_get_context:  
assertion `layout != NULL' failed

(process:25528): Pango-CRITICAL **:  
pango_cairo_context_set_font_options: assertion `PANGO_IS_CONTEXT  
(context)' failed
Segmentation fault



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Edward D. Zaron
Senior Research Associate
Department of Civil and Environmental Engineering
Portland State University
Portland, OR 97207-0751
Phone: (503)-725-2435
FAX: (503)-725-5950
za...@cecs.pdx.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~




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