GnuPlot 6.0 [wiki.dlma]

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====== GnuPlot 6.0 ======

GnuPlot 6.0 adds ''set term block'' to use Unicode block or Braille characters for your dumb terminals that support them.

These two plots are of AirPassengers.csv, the top using Braille, the bottom using term "dumb". The Braille is so much better.
{{:general:gnuplot_braille.png|}}

===== Instructions for compiling =====

The GnuPlot mirror at GitHub is a little behind the SourceForge one. You'd want at least [[https://sourceforge.net/p/gnuplot/gnuplot-main/ci/6.0.0/tree/|tag 6.0.0]]. You can click "Download Snapshot" directly from there. Then unzip it and go into the directly, and make sure to configure with flag ''--with-bitmap-terminals''.

  ./prepare
  ./configure --with-bitmap-terminals
  make
  sudo make install

===== Instructions for WSL =====

  ./prepare
  ./configure --with-bitmap-terminals --with-qt=no
  make
  sudo make install

If ''prepare'' complains that aclocal is not found, you also need...

  sudo apt-get install automake
  # sudo apt-get install pkg-config (Maybe this was only for QT?)

It may say "libgd-based png jpeg gif sixel: no (requires libgd,  see config.log)", but svg will work. If you get the failure, try:

  sudo apt-get update  # Need to avoid 404s from package repos
  sudo apt install libgd-dev
===== Instructions for macOS =====

Inspired from this [[https://stackoverflow.com/questions/54296621/brew-install-gnuplot-with-qt-with-x11-not-working|StackOverflow answer]]. I gave up on getting QT working.

  brew install readline pkg-config automake
  # ... Get the sources per instructions above ...
  ./prepare
  ./configure --disable-silent-rules --prefix=/opt/homebrew/opt/gnuplot --with-readline=/opt/homebrew/opt/readline --with-cairo --with-qt=no --with-x --with-bitmap-terminals
  make
  sudo make install
  # May install into /opt/homebrew/opt/gnuplot/bin/gnuplot, If so maybe ln -s to it.
  ln -s $HOMEBREW_PREFIX/opt/gnuplot/bin/gnuplot $HOMEBREW_PREFIX/bin/gnuplot