Function bindD3Funnel

bindD3Funnel(svg: Element, config: D3BarConfig): D3BinderResult
Binds a D3.js funnel chart to MAIDR.

A funnel is a bar chart whose order is meaningful: the trace pitches the retention between adjacent stages rather than the raw counts, because the drop-off is what the chart is drawn for. Stage order therefore comes straight from the DOM — the binder keeps the elements in the order D3 joined them, so draw the stages top-to-bottom (or left-to-right) in funnel order.

selector matches one element per stage, whichever mark you drew it with: a trapezoid <path>, a centred <rect>, or a <g> per stage.
Parameters
- svg: Element
  The SVG element (or container) containing the D3 funnel chart.
- config: D3BarConfig
  Configuration specifying the selector and data accessors.
Returns D3BinderResult
A D3BinderResult with the MAIDR data and generated layer.
Example
```
bindD3Funnel(svgElement, {
  selector: 'path.stage',
  title: 'Checkout Funnel',
  axes: { x: 'Stage', y: 'People' },
  x: 'stage',
  y: 'count',
});
```
- Defined in adapters/d3/binders/bar.ts:160

src