Function get_unified_edge_style 

pub fn get_unified_edge_style(
    edge_properties: &HashSet<HydroEdgeProp>,
    src_location: Option<usize>,
    dst_location: Option<usize>,
) -> UnifiedEdgeStyle

Available on crate feature viz only.

Convert HydroEdgeType properties to unified edge style. This is the core logic for determining edge visual properties.

Visual Encoding Mapping

Semantic Property	Visual Channel	Values
Network	Line Pattern + Animation	Local (solid, static), Network (dashed, animated)
Ordering	Waviness	TotalOrder (straight), NoOrder (wavy)
Boundedness	Halo	Bounded (none), Unbounded (light-blue transparent)
Keyedness	Line Style	NotKeyed (plain line), Keyed (line with hash marks/dots)
Collection Type	Color + Arrowhead	Stream (blue #2563eb, triangle), Singleton (black, circle), Optional (gray, diamond)