Function: GeoVisHoverTooltip()

GeoVisHoverTooltip(__namedParameters): ReactPortal | null

Defined in: react/GeoVisHoverTooltip.tsx:55

Renders a floating tooltip over the map whenever the user hovers a feature on a polygon layer that has an activeLegendId. Uses position: fixed and renders via ReactDOM.createPortal into document.body, so it does not require a position: relative wrapper and is not clipped by overflow.

The hover tracking (mousemove/leave wiring, cursor changes, feature-state lookup) lives in useMapHover, set up by <GeoVisProvider>. This component is a thin presentational layer that consumes the live hover snapshot from the dedicated GeoVisHoverContext via useGeoVisHover(), so high-frequency hover updates do not re-render useGeoVis() consumers.

Parameters

Parameter	Type
__namedParameters	GeoVisHoverTooltipProps

Returns

ReactPortal | null