Projects sharing features with City Roads

Pts is a TypeScript creative coding library and data visualization framework designed for building generative art and interactive visuals. It functions as a multi-target graphics engine that outputs visual commands to HTML5 Canvas and SVG through a single unified interface. The toolkit serves as a linear algebra visualization tool, providing mathematical primitives for spatial transforms and geometric calculations. This allows for the creation of algorithmic patterns and the simulation of geometric behaviors. The framework covers a broad capability surface including the design of interactive

Trianglify is an algorithmic background generator and vector art toolkit used to produce pseudo-random geometric patterns and polygonal meshes. It functions as a rendering engine that converts geometric data into either scalable vector graphics or rasterized canvas elements. The system utilizes deterministic pattern generation via seed values to ensure consistent geometric output. It supports customizable color gradients, coordinate grid jittering, and custom geometry definitions to control the placement and shape of the generated meshes. The project covers algorithmic art generation and gen

pyecharts is a Python visualization library and wrapper for the Echarts JavaScript engine. It translates Python data and configurations into JSON specifications to generate interactive web-based charts and graphs. The library provides specialized capabilities for geographic data mapping using a comprehensive library of map assets to visualize spatial information. It also includes utilities to capture rasterized snapshots of rendered web visualizations for export as static image files. The tool supports rendering interactive plots directly within data science notebook environments and exporti

This project is a high-level 3D graphics engine designed to render complex, hardware-accelerated environments within web browsers. It provides a comprehensive abstraction layer that manages scene graphs, cameras, and lighting, mapping high-level scene definitions onto low-level graphics APIs. By decoupling these definitions from specific hardware targets, the engine ensures consistent performance across diverse browsers and devices. The framework distinguishes itself through a robust architecture that includes a unified math library for high-frequency spatial calculations and a physically bas

ggplot2 is a data visualization library for R based on a formal grammar of graphics. It provides a declarative plotting framework that allows users to create complex graphics by combining geometric objects, statistical summaries, and coordinate systems. The system is distinguished by a layered approach to composition, where visualizations are built incrementally by stacking independent geometric, statistical, and coordinate layers. It utilizes a hierarchical styling engine to manage non-data elements such as backgrounds, fonts, and margins, and includes a multi-panel faceting tool for splitti

QuestPDF is a C# PDF generation library and layout engine used to create structured documents, reports, and invoices. It utilizes a fluent API and a component-based layout approach to convert code into high-fidelity PDF and XPS files. The library distinguishes itself with a dedicated layout debugger that provides real-time previews, hot-reload capabilities, and visual boundary tools to map rendered elements back to source code. It also functions as an accessibility tool, providing semantic tagging and navigational aids to ensure documents comply with international accessibility and archival s

This project is a generative art engine designed to create large collections of unique images by layering assets with assigned rarity weights and blending modes. It functions as an art generator that produces unique image sets and corresponding JSON metadata files for use in blockchain-based digital collections. The engine features a trait rarity manager that controls the frequency of specific visual attributes through filename-based weighting. It also includes a pixel art converter that transforms generated image collections into pixelated versions using configurable downsampling ratios. Th

canvas-sketch is a JavaScript generative art framework and web-based creative coding environment. It provides a system for creating browser-based generative artwork using built-in tools for geometry and randomness. The framework functions as a high-resolution print exporter and pen plotter vector generator, allowing users to design with physical units and DPI settings for archival printing and robotic drawing machines. It also serves as a GPU shader integration tool for loading and executing shader files to achieve hardware-accelerated rendering. The project includes a development workflow f

Vello is a cross-platform graphics library and GPU-accelerated 2D vector renderer. It functions as an engine for drawing high-performance 2D scenes, rendering scalable vector graphics files, and playing Lottie animations. The project utilizes GPU compute shaders for rasterization and stores vector geometry in a GPU-resident scene graph to minimize data transfer. It employs a tiled rendering architecture and parallelized path rendering to process complex imagery across diverse graphics APIs. The library provides hardware-accelerated compositing and enables the output of rendered 2D visual dat

Shan-shui-inf is an algorithmic art engine designed to generate infinite, procedurally created mountain and tree scenery. It functions as a generative Chinese painting engine that mimics the style and composition of traditional ink landscapes using mathematical noise and geometric functions. The system produces a seamless and endless stream of scalable vector graphics, enabling infinite vector scrolling. It maps noise values to spatial coordinates to arrange landscape elements and calculates vector coordinates to simulate organic hand-painted strokes. All artwork is rendered as scalable vect

This project is a marker clustering plugin and map visualization tool for Leaflet. It functions as a grouping library that organizes large datasets of geographic points into clusters to reduce visual clutter and improve browser performance and readability. The library includes a marker manager that arranges overlapping points in a radial layout, ensuring individual markers sharing the same coordinates remain visually distinct and clickable. It provides capabilities for custom group iconography, geographic boundary previews for marker groups, and automated zoom adjustments to fit the bounds o

p5.js is a JavaScript creative coding library and generative art framework. It serves as a web-based graphics engine and a high-level HTML5 Canvas wrapper designed to produce algorithmic imagery and responsive audio-visual experiences. The project provides a simplified sketching API for rendering 2D and 3D graphics directly in a web browser. It enables the creation of interactive animations, generative art, and digital experiences that respond to user input. The library covers a range of applications including interactive data visualization, browser-based multimedia art, and educational prog

This project is a curated collection of galleries and component libraries that demonstrate pure CSS visual effects, 3D transforms, animation patterns, and layout solutions. It serves as a visual catalog of interactive UI elements and graphics built exclusively with HTML and CSS. The collection distinguishes itself by implementing complex interactivity, such as state management and animation triggers, using only CSS pseudo-classes and keyframes without any JavaScript. It also features a system for generative art and algorithmic patterns, as well as spatial 3D constructions using perspective an

Nannou is a creative coding framework for Rust designed for building interactive visual and audio sketches. It provides a loop-based API with hardware-accelerated 2D and 3D rendering, serving as a toolkit for generative art production and multimedia installation design. The framework is distinguished by its comprehensive hardware communication interface, which bridges software with physical devices via MIDI, OSC, DMX, serial, and laser DAC protocols. It also includes specialized projection mapping tools for warping visual output to fit non-standard physical surfaces and a dedicated GPU shader

Konva is an object-oriented HTML5 canvas framework designed for building interactive 2D graphical applications. It provides a hierarchical scene graph that organizes shapes, images, and text into manageable nodes, groups, and layers. By mapping application state to canvas elements, the library enables developers to create complex visual interfaces using declarative patterns that synchronize with modern component-based frameworks. The library distinguishes itself through a robust event system that supports hit detection, bubbling, and direct manipulation of graphical objects, such as dragging,

Maptoposter is a geographic data visualization engine that transforms raw OpenStreetMap data into high-quality, minimalist map posters. It functions as a generator that converts complex urban layouts and transportation networks into stylized visual representations suitable for large-scale physical printing. The tool distinguishes itself through a specialized rendering pipeline that combines vector-based graphic generation with a script-aware typography engine. This allows for the automatic detection of global writing systems, ensuring that map labels are correctly formatted and spaced regardl

Manim is a Python-based computational geometry framework designed for programmatic video production. It functions as a mathematical animation engine, allowing users to generate high-fidelity visual content by scripting scene definitions rather than using traditional timeline-based editing software. The library is built to translate code-based instructions into precise, frame-accurate animations, making it a tool for explaining complex mathematical functions, geometric proofs, and abstract theories. The engine distinguishes itself through a declarative scene graph that organizes visual element

Prettymaps is a geospatial data visualization library designed to transform raw geographic coordinates into stylized, artistic maps. It functions as an automated generator that retrieves vector data from OpenStreetMap to create custom visualizations for any location worldwide. The library distinguishes itself through a declarative configuration system that allows users to apply consistent visual themes and design presets across different map layers. By utilizing a procedural drawing engine, it stacks geometric layers onto a coordinate-based canvas, ensuring that geographic features are render

SUMO is a microscopic traffic simulator and road network generator designed to model the detailed movement of individual vehicles, pedestrians, and public transport. It serves as a multimodal transport simulator and an autonomous vehicle simulator, enabling the analysis of interactions between different transport modes and the testing of automated driving behaviors. The project distinguishes itself through its ability to couple simulations with external controllers and network simulators to model vehicle communication and autonomous control transitions. It supports the creation of simulation-

Fabric.js is an HTML5 canvas library and interactive vector graphics engine. It provides an object-oriented model for creating, manipulating, and animating 2D shapes and interactive graphics on a web page. The project functions as an SVG to canvas parser, translating SVG data into interactive canvas objects and exporting canvas states back into SVG format. It also serves as a canvas image processing tool for applying filters, gradients, patterns, and brush strokes to visual elements. The library covers programmatic vector manipulation, including the ability to scale, rotate, skew, and group

Inkscape is a professional vector graphics editor and illustration software used to create resolution-independent logos, diagrams, and technical illustrations. It utilizes the SVG open standard format to ensure graphical data remains scalable across all operations. The software functions as a web animation generator, producing CSS-powered animations and interactive presentations for browser display. It also serves as a mathematical renderer capable of importing and typesetting LaTeX formulas directly into scalable vector graphics. Beyond its graphical interface, the project includes a comman

Chartkick is a Ruby on Rails visualization library and JavaScript charting wrapper that provides a high-level interface for integrating interactive charts into web applications. It functions as a multi-engine charting adapter, wrapping various JavaScript charting libraries to provide a consistent API for rendering data visualizations. The project is distinguished by its engine abstraction, which allows users to switch between different JavaScript charting libraries without modifying the underlying data sources. It also supports asynchronous data visualization, fetching chart data from remote

jMonkeyEngine is a Java-based 3D game engine and cross-platform graphics framework. It provides the core tools necessary for developing three-dimensional games and interactive simulations, focusing on real-time rendering and the management of spatial environments. The engine includes a dedicated 3D physics simulation toolkit for handling rigid body dynamics and collision detection. It also features a game asset pipeline for importing and managing 3D models, textures, and audio files during runtime. The framework covers broad capability areas including 3D scene rendering, physics-based simula

A/B Street is an open-source traffic simulation and urban planning tool that models how cars, bikes, and pedestrians move through real-world street networks. It imports data from OpenStreetMap to build detailed, lane-level road models, then runs discrete-event simulations to analyze travel times, delays, and congestion patterns across different infrastructure scenarios. The project provides an interactive map editor for modifying road geometry, lane configurations, traffic signals, and access restrictions, with full undo/redo support. Users can design low-traffic neighborhoods by placing moda

UI-TARS is an LLM GUI automation framework and multimodal action grounding system. It functions as a GUI agent orchestrator and cross-platform device controller that uses large language models to interpret graphical interfaces and execute actions across desktop and mobile operating systems. The system translates model-generated coordinates into precise screen positions to interact with visual user interface elements. It employs a multimodal approach to interpret screen layouts and decomposes complex goals into multi-step trajectories through reasoning and error correction. The project provid

bqplot is an interactive data visualization library for Jupyter notebooks. It implements a grammar of graphics model, allowing users to build complex 2D charts by combining marks, scales, and axes. The library distinguishes itself with specialized toolkits for financial charting, such as OHLC candlesticks and time-series analysis, and geographic data visualization, including choropleths and custom map projections for TopoJSON and GeoJSON data. It enables deep interaction through tools like lasso selection, rectangular brushing, and the ability to manually manipulate plot points or line data.

go-echarts is a Go library and wrapper for Apache ECharts used to create interactive data visualizations. It functions as a generator that produces the configurations and HTML files necessary to render complex datasets as visual charts and graphs in a web browser. The library includes specialized tools for geographic data visualization, allowing spatial information and distributed datasets to be mapped using coordinates and regional boundaries. The project supports exporting visualizations as standalone HTML files for static use or serving them through an HTTP server for web-based dashboardi