On Tue, Apr 16, 2019 at 10:21:35AM -0300, Bruno Schneider wrote: > I have just installed octave and it seems I'm missing some parts. I'm > using Debian testing with XFCE. I have the following packages > installed: > > $ dpkg -l | grep octave > ii liboctave6:amd64 4.4.1-5 > ii octave 4.4.1-5 > ii octave-bsltl 1.1.1-2 > ii octave-common 4.4.1-5 > ii octave-doc 4.4.1-5 > ii octave-image 2.10.0-2 > > On octave, i enter the following commands: > > x = linspace(0, 2*pi); > a = cos(2*x); > plot(x, a); > > Then, a window appears with menus, but the drawing is completely blank. > > I get some font errors. I don't know if they affect the graph: > > warning: ft_manager: unable to load font: > /usr/share/fonts/opentype/freefont/FreeSans.otf > warning: called from > axes at line 66 column 10 > newplot at line 158 column 10 > plot at line 222 column 9 > warning: ft_text_renderer: unable to load appropriate font > > It seems I'm using Qt for graphics but my system seems to have all > libqt5* packages installed. I also tried gnuplot graphics and the > window was also blank. > > Am I missing packages? >
Why do you ignore the *very clear* error message? try apt install fonts-freefont-otf And then check if the plot works. > Can I configure octave to use other fonts instead? > -- > Bruno Schneider > -- Henning Follmann | hfollm...@itcfollmann.com
