sankey_helpers library

Classes

SankeyDataSet

Combines nodes and links with layout logic

SankeyDiagramWidget

A widget that wraps an interactive Sankey diagram

SankeyNodeThemeManager

Utility class for managing node theming

Constants

defaultNodeColors → const List<Color>

A default palette of 15 visually distinct colors for use in node theming

Functions

buildInteractiveSankeyPainter({required List<SankeyNode> nodes, required List<SankeyLink> links, required Map<String, Color> nodeColors, int? selectedNodeId, bool showLabels = true}) → InteractiveSankeyPainter

Builds an interactive painter based on the provided nodes, links, and node colors

detectTappedNode(List<SankeyNode> nodes, Offset tapPos) → int?

Determines if a tap hit a node and returns its id; returns null if no node is hit

generateDefaultNodeColorMap(List<SankeyNode> nodes) → Map<String, Color>

Generates a default node color map for a list of SankeyNode objects

generateSankeyLayout({double width = 1000, double height = 600, double nodeWidth = 20, double nodePadding = 15}) → Sankey

Generates a configured Sankey layout engine