Power BI Custom Visual
Chord Diagram for Power BI
AI-generated chord diagram for Power BI. Describe what you need in plain English; download a ready-to-import .pbiviz file. Full TypeScript source included.
A chord diagram arranges entities around a circle and draws ribbons between them sized by the flow between each pair. It's the visual of choice when relationships are bidirectional (migration between regions, trade between countries, department-to-department communication) or when you want to show a matrix of pairwise values without the grid of a heatmap.
Power BI has no native chord. Marketplace options are rare and typically slow, opinionated, and limited in color control.
VizForge generates a Power BI chord custom visual with configurable ribbon opacity, label placement, categorical or sequential coloring, and optional asymmetric ribbons when in-flow and out-flow are different sizes. Our AI writes the .pbiviz and gives you the source to tune ribbon curvature or add animations.
When to use a chord diagram in Power BI
- Migration flows between regions (bidirectional)
- Inter-departmental communication matrix
- Trade flows between countries
- Player-to-player pass networks in sports analytics
- Dialog-turn flow between two conversational agents
Example prompt
Example VizForge prompt
Chord diagram showing migration between 8 regions. Ribbons asymmetric (in-migration thicker than out-migration if the region is growing). Color by destination region. Show labels outside the circle with total in/out migration.
Data shape required
Three columns: Source (text), Target (text), Value (numeric). For asymmetric chord, include two rows per pair (A→B and B→A).
Typical DAX measures
Flow Value = SUM( Migration[Value] )
Region Total In =
CALCULATE( [Flow Value],
FILTER( ALL( Migration ), Migration[Target] = MAX( Regions[Name] ) )
)
Region Total Out =
CALCULATE( [Flow Value],
FILTER( ALL( Migration ), Migration[Source] = MAX( Regions[Name] ) )
)
Net Flow = [Region Total In] - [Region Total Out]Free plan: 3 visuals per month. No credit card required.
FAQ
Chord vs. Sankey — when to pick which?
Chord when flows are bidirectional or a closed system (migration, trade). Sankey when flows move left-to-right through stages.
How many entities fit around the circle?
8-20 reads cleanly. Beyond that, labels overlap — prompt for 'bucket long-tail entities into Other' or use a network graph.
Can I click a ribbon to filter?
Yes — ribbons and arcs both act as cross-filters.
What about directed flows (arrows)?
Traditional chord doesn't show direction. Prompt for 'arrowed chord' and VizForge renders terminal arrowheads on one side of each ribbon.
How-to guides for chord diagram
Power BI How-To
AI-First Power BI
Decision Guide
Power BI Customization
Free .pbiviz Generator
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