package oplot

Simple mathematical plotter library for ocaml with fast graphics (opengl), LaTeX display, and high quality vector output (xfig, postscript or PDF)

Source available on github.

• version 0.5

• author San Vũ Ngọc

Example

Oplot can be used in the toplevel. First load the library with

#use "topfind";;
#require "oplot";;

You may open the Oplot.Plt module for easy access to all plot functions.

open Oplot.Plt;;

Draw the graph of the sine function with

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

display [Color red ; p ; Color black ; a];;

This will open a window with the graphics, which should look like this:

Press F for fullscreen toggle, CTRL-S for saving the image, and ESC or Q to close the window. Press h to see the list of active keys.

Of course you can play with it:

let rec sh i = if i==0 then [] else 
    let p = line_plot_f (fun x->sin (x+.(float_of_int i)/.50.)) 0. 20. ~pas:0.05 in 
    let c = color ((float_of_int i)/.50.) (1.-.((float_of_int i)/.50.)) 0. in 
c::(p::(sh (i-1)));;

display (sh 50) ;;

Main Oplot functions

This module contains all plotting functions.

Oplot internals

Oplot internal functions are useful for creating user interfaces.