holman/spark
Spark
Spark 是一套命令行实用程序，旨在将数值数据集渲染为使用 Unicode 字符的紧凑视觉图表。它作为一个终端数据可视化和图表工具，在 Shell 环境中将数字序列转换为视觉趋势线。
该工具通过将数值范围映射到特定的 Unicode 块字符来生成迷你图（sparkline）。它利用线性值缩放将输入数字归一化以适应可用的字符高度，并从标准输入流中顺序处理数据以产生实时视觉输出。
这些功能实现了用于监控系统指标并将视觉图表合并到 Shell 脚本报告中的终端数据可视化。
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.
