sanette / oplot-graphics

X11-Graphics backend for Oplot

oplot-graphics, a Graphics backend for Oplot

Oplot is an OCaml library for mathematical plotting using OpenGL graphics.

oplot-graphics is a plugin for extending Oplot. It will enable the use of the X11 graphics library (unix) or the Win32 API (Windows) through the Graphics ocaml library.

WIP

Currently oplot-graphics is not that useful because only a subset of Oplot is implemented. Moreover the output quality of the Graphics library is debatable. The original Oplot library should be better for most users.

Usage

Install the library:

opam pin https://github.com/sanette/oplot-graphics.git

Then in ocaml files just use the alias

module Oplot = Oplot_graphics

and then use Oplot as usual. The x11 device must be explicitly selected, for instance:

module Oplot = Oplot_graphics
open Oplot.Plt

let p = plot sin (-2.) 20.
let a = axis 0. 0.;;

display ~dev:x11 [ Color red; p; Color black; a ];;

See the test directory.

oplot-graphics can also be used from the toplevel. After starting the toplevel (ocaml or utop), just load the library with

#use "topfind";;
#thread;;
#require "oplot-graphics";;

You may then copy/paste the example above.