June 26, 2019

241 words 2 mins read



Create beautiful diagrams just by typing mathematical notation in plain text.

repo name penrose/penrose
repo link https://github.com/penrose/penrose
homepage http://penrose.ink
language Haskell
size (curr.) 428086 kB
stars (curr.) 1754
created 2016-09-22
license MIT License

Penrose CircleCI

Penrose is an early-stage system that is still in development. Our system is not ready for contributions or public use yet, but hopefully will be soon. Send us an email if you’re interested in collaborating.

  • See the site for more information and examples.
  • See the wiki for more system-specific information on building, running, testing, and debugging the system.
  • For even more documentation, see Nimo Ni’s README.


Here’s a simple Penrose visualization in the domain of set theory.

It’s specified by the following Substance and Style programs.

  • tree.sub
    Set A
    Set B
    Set C
    Set D
    Set E
    Set F
    Set G
    Subset B A
    Subset C A 
    Subset D B
    Subset E B
    Subset F C
    Subset G C
    NoIntersect E D
    NoIntersect F G
    NoIntersect B C
  • venn.sty
    Set x {
        shape = Circle { }
        constraint contains(x, x.label)
    Intersect x y {
        constraint overlapping(x, y)
        constraint outsideOf(y.label, x)
        constraint outsideOf(x.label, y)
    NoIntersect x y {
        constraint nonOverlapping(x, y)
    Subset x y {
        constraint contains(y, x)
        constraint smallerThan(x, y)
        constraint outsideOf(y.label, x)
    NoSubset x y {
        objective repel(x, y)
        constraint outsideOf(x, y)
        constraint outsideOf(y.label, x)
        constraint outsideOf(x.label, y)
        constraint nonOverlapping(x, y)

Here’s how the optimization looks live in the UI.

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