# Piet > visual programming language **Wikidata**: [Q1886145](https://www.wikidata.org/wiki/Q1886145) **Wikipedia**: [English](https://en.wikipedia.org/wiki/Piet_(programming_language)) **Source**: https://4ort.xyz/entity/piet ## Summary Piet is a programming language. It was influenced by Piet Mondrian . The language derives its name from the Dutch painter known for his abstract geometric compositions. Programs written in Piet resemble the distinctive block-style artwork associated with Mondrian's distinctive red, yellow, and blue color scheme. ## Summary Piet is a visual programming language designed for artistic expression rather than practical computation. Programs in Piet are created using colored pixels arranged in grids, resembling abstract art more than traditional code. It was developed by David Morgan-Mar in 1993 and named after the Dutch painter Piet Mondrian. ## Key Facts - Created by David Morgan-Mar in 1993 - Classified as an esoteric and visual programming language - Named after the artist Piet Mondrian - Official website: https://dangermouse.net/esoteric/piet.html - Described on Esolang at https://esolangs.org/wiki/Piet - Uses color-based instruction transitions instead of text-based syntax - Part of the broader category of esoteric programming languages meant for entertainment or experimentation - Has a sitelink count of 16 across various Wikimedia projects ## FAQs ### Q: What is Piet used for? A: Piet is primarily used for recreational programming and creating visually artistic programs. It's not intended for general-purpose software development but serves as an example of unconventional computing paradigms. ### Q: How does Piet work? A: Piet works by interpreting changes in color blocks within a grid as commands. The program flow moves through adjacent colors based on predefined rules, with each transition representing different operations like input/output or arithmetic. ### Q: Who created Piet and when? A: Piet was created by David Morgan-Mar in 1993. He developed it as part of the esoteric programming language community, drawing inspiration from abstract geometric art styles. ## Why It Matters Piet stands out in the programming world due to its unique fusion of computational logic and visual aesthetics. As an esoteric programming language, it challenges conventional assumptions about how code must look and function, encouraging creativity and exploration beyond standard textual syntax. Its design reflects the influence of modernist art, bridging disciplines between computer science and fine arts. While not suitable for mainstream applications, Piet contributes to educational discussions around alternative programming models and has inspired other creative coding projects. It also exemplifies the playful spirit of esolangs—languages built more for intellectual curiosity than utility—which have become significant in exploring the boundaries of computation. ## Notable For - Being one of the few fully visual programming languages based on color transitions - Drawing direct aesthetic inspiration from the artwork of Piet Mondrian - Demonstrating that functional programs can double as abstract digital art - Serving as both a programming tool and conceptual commentary on form versus function - Influencing later developments in esoteric and artistic programming practices ## Body ### Overview Piet is a visual programming language where instructions are represented by colored regions in a pixel grid. Execution flows via movement across these regions according to specific rules tied to hue and brightness differences. This makes Piet fundamentally distinct from traditional programming languages that rely on written syntax. ### Design Principles The core idea behind Piet lies in translating visual elements into executable logic: - **Color Blocks**: Adjacent areas filled with the same color represent continuous regions. - **Flow Direction**: Movement occurs in four directions (right, down, left, up) cycling repeatedly unless blocked. - **Instruction Pointer**: Determines current direction; changes upon hitting boundaries or entering new color zones. - **Hue/Brightness Changes**: Transitions between colors determine which command is executed. ### Technical Details - Developed entirely as an experimental project under the esolang movement - No formal versioning system exists; all implementations follow original specification published online - Several interpreters exist including those written in Python, Java, and JavaScript - Language paradigm falls under “esoteric” because it prioritizes novelty over usability ### Historical Context David Morgan-Mar introduced Piet in 1993 during a period when many unconventional programming languages were emerging. These so-called "esolangs" often served as thought experiments or humorous takes on programming norms. By choosing to model his language after the minimalist compositions of Piet Mondrian, Morgan-Mar merged two seemingly unrelated fields: abstract painting and algorithmic execution. ### Cultural Impact While not widely adopted outside niche communities, Piet has gained recognition among programmers interested in pushing the limits of what constitutes valid code. It has been featured in exhibitions combining technology and art and continues to inspire derivative works in both domains. Its presence on platforms such as GitHub and Wikipedia confirms ongoing interest despite limited practical application.