FlowBorderShare
Defined in: network/glyphs.ts:410
The share flow-border mode (#510): the flow border covers the node’s exit-flow share — its exit flow
e (FlowBorderBase.flow) over its flow f (the graph’s node flow, NetworkGraph.flow) — as
a share of its area. A node of radius r keeps an inner disc of radius r · √(1 − e/f), with e/f
clamped to [0, 1]: e = f covers the whole node, e = f/2 half its area, e = 0 draws no border, and
f = 0 or a missing value (no node flow, NaN) draws none. The share does not depend on the radius, so
it reads the same in both size modes and on a capped aggregate.
An LOD aggregate takes its members’ summed exit flow over their summed flow; a module of the engine’s hierarchy with a FlowBorderBase.moduleFlow value takes that exit flow over its summed flow. In a state network each view takes its own graph’s node flow: a physical node’s share is its exit flow over its flow (the sum of its state nodes’ flow).
Extends
Section titled “Extends”Properties
Section titled “Properties”color?
Section titled “color?”
optionalcolor?:string| ((value,index,graph) =>string)
Defined in: network/glyphs.ts:436
Ring colour: a single CSS colour, or a per-node (value, index, graph) => cssColour accessor so
the ring colour can also encode the per-node metric (a bare d3 colour scale fits — value is the
node’s flow metric). An LOD aggregate of a module or structural tree gets the value its ring draws
(its module value, else its members’ sum) with index -1; a spatial-tree cell takes the
highest-flow node’s colour. Omitted (default): a darker shade of each glyph’s own fill — so a
module aggregate’s ring is a darker shade of its module colour, not one shared colour.
Inherited from
Section titled “Inherited from”
optionalflow?:Float32Array<ArrayBufferLike> |NodeMetric
Defined in: network/glyphs.ts:427
Per-node enter/exit flow driving the border width: a caller Float32Array (length nodeCount)
or a built-in NodeMetric. Summed over members for module aggregates. In the share mode it is
the exit flow, divided by the node’s flow.
Optional when moduleFlow is given (#471) — for input that has each module’s flow but no
per-node value, such as an Infomap .ftree. Then a node draws no ring, a module draws its
moduleFlow value, and a module without one draws none: nothing is summed from values that do not
exist. One of flow and moduleFlow is required.
Inherited from
Section titled “Inherited from”moduleFlow?
Section titled “moduleFlow?”
optionalmoduleFlow?: (path) =>number|undefined
Defined in: network/glyphs.ts:446
A module’s own enter/exit flow, by its Infomap path (e.g. [2, 1] = sub-module 1 of top module 2;
[] = the root). Read for the aggregates of a module hierarchy the engine holds
(data(graph, { modules }), drawn by the default lod() source "modules"): a module with a value
draws its ring from it instead of its members’ sum — which overstates a higher-level module, since
it also counts the flow between its own submodules. Return undefined to keep the sum for a module.
Aggregates that are not modules (the "structure" / "spatial" sources) always sum. Called once
per module when the style is resolved against the tree, never per frame.
Parameters
Section titled “Parameters”readonly number[]
Returns
Section titled “Returns”number | undefined
Inherited from
Section titled “Inherited from”scale?
Section titled “scale?”
optionalscale?:undefined
Defined in: network/glyphs.ts:412
share:
true
Defined in: network/glyphs.ts:411