Gnuplot, Applications, Gnuplot is a commonly used command-line plotting tool. It seems to me that the Qt5 in not installed properly, but I have installed, and re-installed a few times, but still get the above errors. Barcode font 3 of 9, Utilities, A Font that format characters as Bar codes. I get blocks of the above text, one for each type of window e.g. Warning: slow font initialization Warning: slow font initialization Warning: slow font initialization Warning: slow font initialization Warning: slow font initializationHit return to continue Reinstalling the application may fix this problem.Īvailable platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb. This application failed to start because no Qt platform plugin could be initialized. loaded library "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqwayland-egl.so" Failed to create wl_display (No such file or directory) Using Wayland-EGL failed to initialize EGL display qt.qpa.plugin: Could not load the Qt platform plugin "wayland-egl" in "" even though it was found. Got keys from plugin meta data ("xcb") QFactoryLoader::QFactoryLoader() checking directory path "/home/dad/Downloads/gnuplot-5.4.1/src/platforms". Make check # make a test before installingīut when running 'make check' if get pages of this (the formatting is wacky, but the text is correct): Got keys from plugin meta data ("wayland-xcomposite-glx") QFactoryLoader::QFactoryLoader() looking at "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so" Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so, metadata= Make -j # uses more jobs for faster compiling and linking I followed the instructions from another Q/A: sudo apt install qtbase5-dev qtbase5-dev-tools libqt5svg5-dev qttools5-dev-tools After struggling with fonts in Gnuplot 4.6 (on Fedora 17) (getting the not so useful error gdImageStringFT: Could not find/open font while printing. Gnuplot makes a best-effort attempt to determine the average character size for variable-width fonts, either by using the nominal font size in printer points (PostScript) or by sampling the. Python Development Programming Project Data Analysis. If an argument is given, it’s interpreted as the desired size of the margins in character widths and heights, using the current terminal’s default font. In the picture body, a font is designated by an index into this table. For example: set key font ',20' would set the size of the font to 20. When I plot a graph in gnuplot, I get the following message: qt.qpa.fonts: Populating font family aliases took 320 ms. I'm running 20.04 but after several tries I can not get gunplot to install properly wiht qt5. Create the boxplot, set labels, change font size, add grid lines and legends. The font for the key can be set in gnuplot 4.4.
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