charts

name	charts
description	Generate SVG/PNG charts (bar, line, pie, scatter, radar, heatmap, funnel, gauge, sankey, etc.) from ECharts JSON configs

Charts CLI

Generate charts from the command line using ECharts. No browser needed.

Usage

List available chart types

charts schema --list

Get schema for a chart type

charts schema bar
charts schema pie
charts schema xAxis

Render a chart

# Pipe JSON config
cat option.json | charts render -o outbox/chart.png

# Or render from file
charts render --config option.json -o outbox/chart.png

Options

Option	Description
-o, --output <file>	Output path (.svg or .png)
-W, --width <n>	Width in pixels (default: 800)
-H, --height <n>	Height in pixels (default: 400)
--theme <name>	dark, vintage, or path to JSON
--format <type>	svg or png (auto-detected from extension)

Supported chart types

bar, line, pie, scatter, radar, funnel, gauge, treemap, boxplot, heatmap, candlestick, sankey

Visual style rules

Always apply these defaults unless the user asks for something else.