// Generate SVG/PNG charts (bar, line, pie, scatter, radar, heatmap, funnel, gauge, sankey, etc.) from ECharts JSON configs
| name | charts |
| description | Generate SVG/PNG charts (bar, line, pie, scatter, radar, heatmap, funnel, gauge, sankey, etc.) from ECharts JSON configs |
Generate charts from the command line using ECharts. No browser needed.
charts schema --list
charts schema bar
charts schema pie
charts schema xAxis
# 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
| 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) |
bar, line, pie, scatter, radar, funnel, gauge, treemap, boxplot, heatmap, candlestick, sankey
Always apply these defaults unless the user asks for something else.
backgroundColor: "#ffffff"#111827{ left: 60, right: 32, top: 60, bottom: 48 }#4f46e5, #0d9488, #d97706, #dc2626, #7c3aed, #0891b2#d1d5db, label color #4b5563, fontSize 13#9ca3af, dashed split lines #e5e7ebbarWidth: "50%"borderRadius: [5,5,0,0]smooth: truesymbol: "circle", symbolSize: 7, line width 3-W 800 -H 500type: "value"symbolSize: 8, opacity 0.7Use the same conventions as documented by charts schema and keep styling clean and modern.
charts schema <type> to inspect the config shapeoutbox/