Voronoi Diagram¶

Spatial partitioning where each cell contains the area closest to its point.

When to Use¶

Nearest-neighbor regions (service areas, coverage zones)
Spatial analysis and territory partitioning
Artistic/generative visualizations

Example¶

from d3_bridge import VoronoiDiagram

chart = VoronoiDiagram(
    data=Warehouse.objects.values("longitude", "latitude", "region"),
    x="longitude",
    y="latitude",
    color_by="region",
    title="Service Areas",
)

With Delaunay Triangulation¶

Show the dual triangulation overlay:

chart = VoronoiDiagram(
    data=data,
    x="x", y="y",
    show_delaunay=True,
)

Cell Styling¶

chart = VoronoiDiagram(
    data=data,
    x="x", y="y",
    cell_opacity=0.5,
    stroke_color="#333",
    stroke_width=1,
)

Parameters¶

Parameter	Type	Default	Description
`x`	str	—	X-axis field
`y`	str	—	Y-axis field
`color_by`	str	`None`	Field for cell color
`show_points`	bool	`True`	Show generator points
`show_delaunay`	bool	`False`	Show Delaunay triangulation
`point_radius`	float	`4`	Point radius
`stroke_color`	str	`"#666"`	Cell border color
`stroke_width`	float	`0.5`	Cell border width
`cell_opacity`	float	`0.3`	Cell fill opacity
`x_label`	str	`None`	X-axis label
`y_label`	str	`None`	Y-axis label