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holman avatar

holman/spark

0
View on GitHub↗
zachholman.com/spark↗

Spark

Spark is a suite of command line utilities designed to render numeric data sets as compact visual graphs using Unicode characters. It functions as a terminal data visualizer and charting tool that converts sequences of numbers into visual trend lines within a shell environment.

The tool generates sparkline graphs by mapping numeric value ranges to specific Unicode block characters. It utilizes linear value scaling to normalize input numbers to fit within available character heights and processes data sequentially from the standard input stream to produce real-time visual output.

These capabilities enable terminal data visualization for monitoring system metrics and incorporating visual graphs into shell script reporting.

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Features

  • Sparkline Charts - Generates compact, minimalist line charts to visualize numerical data trends within the terminal.
  • Compact Inline Charts - Provides small, inline time-series charts for representing single metrics in a text-based interface.
  • Character-Based Plotting - Implements graphics rendering on a terminal grid using text characters instead of pixels.
  • Linear Value Normalization - Normalizes input numbers to fit within the fixed number of available Unicode character heights.
  • Stream-Based Text Processing - Processes numeric input sequentially from the standard input stream to minimize memory consumption.
  • Sparkline Generation - Converts sequences of numbers into visual trend lines using Unicode block characters.
  • Terminal Data Visualizers - Renders simple graphs and data trends directly within a shell environment.
  • Terminal Data Visualizations - Renders complex numerical data and trends using text-based graphics in a terminal.
  • Unicode Block Art Renderers - Maps numeric value ranges to specific Unicode block characters to create vertical bars.
  • Shell Script Visual Reporting - Adds simple visual graphs to terminal output to make numeric data easier to interpret in shell reports.
  • Metric Visualization - Tracks fluctuating system performance metrics over time using compact visual indicators.
  • Markup-based Diagram Tools - Command-line tool for generating sparklines.
  • Markup-based Tools - Command-line tool for generating sparklines.
  • Terminal Productivity - Sparkline generator for the terminal.
6,059 stars·288 forks·Shell·MIT·23 views

Star history

Star history chart for holman/sparkStar history chart for holman/spark

How this analysis was created: This summary and feature list are AI-generated from collected project material and can contain mistakes. Stars, license and language are imported from GitHub. Inclusion does not mean that we have tested or audited this project. Check the source documentation for any feature you depend on. Learn more on our About page.

Frequently asked questions

What does holman/spark do?

Spark is a suite of command line utilities designed to render numeric data sets as compact visual graphs using Unicode characters. It functions as a terminal data visualizer and charting tool that converts sequences of numbers into visual trend lines within a shell environment.

What are the main features of holman/spark?

The main features of holman/spark are: Sparkline Charts, Compact Inline Charts, Character-Based Plotting, Linear Value Normalization, Stream-Based Text Processing, Sparkline Generation, Terminal Data Visualizers, Terminal Data Visualizations.

Which projects share features with holman/spark?

Projects with overlapping indexed features include: gizak/termui — Termui is a Go terminal user interface library used for building interactive dashboards and visual layouts within a… yaronn/blessed-contrib — blessed-contrib is a terminal user interface framework and a Node.js console widget library designed for building… red-data-tools/youplot — YouPlot is a command line plotting utility and terminal data visualization tool used to render statistical plots and… fdehau/tui-rs — tui-rs is a Rust framework for building rich terminal user interfaces and dashboards. It provides a terminal layout… xo/usql — usql is a universal SQL command-line interface used to connect to and manage multiple SQL and NoSQL databases through… gephi/gephi — Gephi is an open-source desktop application for visualizing and analyzing large-scale network graphs. It provides an…

Projects sharing features with Spark

These projects share indexed features with Spark. Shared tags can include platform or build tooling; verify the primary use case before treating a result as a replacement.
  • gizak/termuigizak avatar

    gizak/termui

    13,574View on GitHub↗

    Termui is a Go terminal user interface library used for building interactive dashboards and visual layouts within a command-line environment. It functions as a TUI layout engine, an interactive CLI framework, and a terminal data visualization toolkit. The library provides a set of specialized widgets for rendering charts, plots, gauges, and tables using character-based graphics. It includes a grid-based system for arranging interface elements using relative coordinates and proportional sizing to create structured displays. The toolkit covers a broad range of capabilities including data visua

    Go
    View on GitHub↗13,574
  • yaronn/blessed-contribyaronn avatar

    yaronn/blessed-contrib

    15,745View on GitHub↗

    blessed-contrib is a terminal user interface framework and a Node.js console widget library designed for building data-driven command line interfaces. It serves as an ASCII data visualization toolkit and a dashboard framework for organizing grid-based layouts and interactive elements within a console. The project provides a collection of reusable terminal components, including a command line image renderer and tools for text-based graphic rendering. It specifically enables the creation of terminal dashboards through a system for positioning multiple widgets across rows and columns and a mecha

    JavaScript
    View on GitHub↗15,745
  • red-data-tools/youplotred-data-tools avatar

    red-data-tools/YouPlot

    4,761View on GitHub↗

    YouPlot is a command line plotting utility and terminal data visualization tool used to render statistical plots and charts directly within a terminal interface using Unicode characters. It functions as a Unix pipeline plotter, allowing users to visualize numerical data without leaving the shell. The project operates as a real-time data visualizer, drawing plots progressively as data streams into the system. It integrates into command line pipelines by reading data from standard input to provide real-time stream monitoring and data analysis. The tool covers a variety of rendering capabilitie

    Rubyclicsvruby
    View on GitHub↗4,761
  • fdehau/tui-rsfdehau avatar

    fdehau/tui-rs

    10,875View on GitHub↗

    tui-rs is a Rust framework for building rich terminal user interfaces and dashboards. It provides a terminal layout engine for dividing the screen into flexible rectangular regions and a widget library for rendering data in a terminal. The project includes a cross-platform terminal backend abstraction layer to ensure consistent rendering and compatibility across different operating system terminal drivers. The framework covers a wide range of UI components, including data visualization tools such as charts, progress gauges, and sparklines, as well as structural elements like data tables, ite

    Rust
    View on GitHub↗10,875
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