Feature Request: Support for Additional Chart Types in MCP-ECharts

[BuddhiD-Workaholic]

Summary

I would like to request support for additional chart types that would significantly enhance the capabilities of mcp-echarts. These chart types are commonly used in data visualization and business intelligence applications but are currently missing from the library.

Requested Chart Types

Data Visualization Charts

• Area charts - Filled line charts for showing trends with emphasis on volume/magnitude
• Column charts - Vertical bar charts (complement to existing horizontal bar charts)
• Histogram charts - For displaying data distribution by grouping values into bins
• Violin charts - Distribution visualization combining boxplots with kernel density estimation

Business Intelligence & Process Charts

• Dual-axes charts - Combining different chart types (e.g., bar + line) with separate Y-axes
• Fishbone diagrams - Cause-and-effect analysis diagrams (Ishikawa diagrams)
• Flow diagrams - Process flowcharts for workflow visualization
• Mind maps - Hierarchical thought process and concept mapping
• Organization charts - Company hierarchy and reporting structure visualization
• Venn diagrams - Set relationship and overlap visualization

Geographic & Specialized Charts

• District maps - Administrative region maps for geographic data distribution
• Path maps - Route planning and journey visualization
• Pin maps - Location marker maps for point-of-interest visualization

Unique Visualization Types

• Liquid charts - Percentage visualization as liquid-filled containers
• Word clouds - Text frequency visualization with varying font sizes

Use Cases & Benefits

These chart types would enable:

1. Enhanced Business Analytics - Better support for KPI dashboards and executive reporting
2. Process Documentation - Flowcharts and organizational charts for business process mapping
3. Geographic Intelligence - Location-based data analysis and visualization
4. Advanced Statistics - More sophisticated statistical visualization options
5. Text Analytics - Word frequency and sentiment analysis visualization

Technical Considerations

Most of these chart types are supported by Apache ECharts core library:

• Area charts: series.type: 'line' with areaStyle
• Histograms: Can be implemented using bar charts with data preprocessing
• Dual-axes: Multiple Y-axis configuration
• Geographic charts: ECharts geo and map components

Some may require additional ECharts extensions or custom implementations:

• Flowcharts: Could leverage ECharts graph with custom layouts
• Mind maps: Tree layout with custom styling
• Word clouds: ECharts wordCloud extension

Implementation Priority

High Priority:

• Area charts
• Column charts
• Dual-axes charts
• Histogram charts

Medium Priority:

• Geographic maps (district, path, pin)
• Violin charts
• Venn diagrams

Lower Priority (but valuable):

• Process diagrams (fishbone, flow, mind maps, org charts)
• Liquid charts
• Word clouds

Would the maintainers be open to implementing these chart types?
Thank you for considering this feature request!

[hustcc]

Can help with a pr？

[joeycyhuang]

pr #29 introduced support for area charts by adding the generateAreaChartTool.

• Area Chart 2025-09-26 feat(mcp-function) : add generateAreaChartTool to create area chart #29

[hustcc]

@joeycyhuang Welcome to contribute more charys.🎉

[joeycyhuang]

After tried more of the MCP server, I found out that those high priority charts mentioned by @BuddhiD-Workaholic were actually working as long as the prompt was more accurate. Here are the example that I try:

Data: world population from 2020 - 2025
Client: Claude Desktop

Area Charts:
prompt: please give me an area chart example

Column Charts:
prompt: please give me vertical bar chart

prompt: please give me horizontal bar chart

Dual-axes charts:
prompt: please give me a Dual-axes chart example

Histogram charts: not sure what you mean @BuddhiD-Workaholic

So based on the current server capability I don't think #29 is necessary.

cc: @hustcc