Print tex creating transparent elements

[the_clapper]

Dear all,

when exporting figures from octave 3.8.1 somehow the elements contained in
figures get arranged "weird".  In the example below the legend elements get
put to the far background, so the line and grid elements will be on top of
it. Also, the elements appear to be transparent, take a close look at the
legend box.
I do not know it this is an octave related issue or it is some other
component involved causing this.

Please have a look at the octave code and and .tex-file.

figure('Name','Plot Export Demo');
hold on;
grid on;
plot([0,10],[0,10],'LineWidth',2,'Color','blue');
plot([0,10],[10,0],'LineWidth',2,'Color','red');
set(gca,'xtick',[0:10]);
set(gca,'ytick',[0:10]);
legend('blue line','red line');
print('-dtex','plot_export_demo');

A minimum working example .tex file:

\documentclass[10pt,a4paper]{article}
\usepackage[latin1]{inputenc}
\usepackage{graphicx}
\usepackage{color}
\usepackage[left=3.00cm, right=2.00cm, top=2.00cm, bottom=2.00cm]{geometry}
\begin{document}
\resizebox{1.0\textwidth}{!}{\input{plot_export_demo.tex}}
\end{document}

A screenshot of the resulting image in the .pdf-file is attached below. You
can see the blue line on top of the legend box in the .eps file produced by
octave already. So I guess everything else is a follow up?

Any ideas what might be causing this?
<http://octave.1599824.n4.nabble.com/file/n4664335/screenshot.png> 



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