NavaidSnapper¶

Classes¶

NavaidSnapper¶

Defined in: ui/map/navdata/NavaidSnapper.ts:33

NavaidSnapper - shared helper that lets the drawing/creation tools snap a clicked coordinate to the nearest visible navaid (airport, heliport or waypoint).

The navdata is a queryable MapLibre vector source (see NavdataRenderer), so we just probe the rendered point layers in a small pixel box around the cursor and pick the closest hit. queryRenderedFeatures already skips layers whose visibility is 'none', so toggling a navaid type off in Display Options also removes it as a snap target for free.

A single instance is shared by ShapeDrawingManager, RouteDrawingManager and AircraftCreationManager, and also drives a hover highlight (ring + ident label) so the user can see what a click will snap to before committing.

Constructors¶

Constructor¶

new NavaidSnapper(
   mapDisplay, 
   stateManager, 
   getMinAirportRank): NavaidSnapper;

Defined in: ui/map/navdata/NavaidSnapper.ts:54

Parameters¶

mapDisplay¶

MapDisplay

stateManager¶

StateManager

getMinAirportRank¶

(zoom) => number

Returns¶

NavaidSnapper

Methods¶

snap()¶

snap(e): SnapResult | null;

Defined in: ui/map/navdata/NavaidSnapper.ts:73

Find the nearest snappable navaid to the cursor, or null if snapping is off or nothing is within range.

Parameters¶

e¶

MapMouseEvent

Returns¶

SnapResult | null

highlight()¶

highlight(e): void;

Defined in: ui/map/navdata/NavaidSnapper.ts:129

Update the hover highlight to mark the navaid the cursor would snap to. Shows a ring + ident label when a candidate is found, hides it otherwise.

Parameters¶

e¶

MapMouseEvent

Returns¶

void

clearHighlight()¶

clearHighlight(): void;

Defined in: ui/map/navdata/NavaidSnapper.ts:150

Hide the highlight (keeps the layers around for the next hover).

Returns¶

void

teardown()¶

teardown(): void;

Defined in: ui/map/navdata/NavaidSnapper.ts:160

Remove highlight layers + source entirely.

Returns¶

void

Interfaces¶

SnapResult¶

Defined in: ui/map/navdata/NavaidSnapper.ts:11

Result of a successful snap: the navaid coordinate plus its identity so callers can use the precise position (and, in future, the ICAO/ident name).

Properties¶

lng¶

lng: number;

Defined in: ui/map/navdata/NavaidSnapper.ts:12

lat¶

lat: number;

Defined in: ui/map/navdata/NavaidSnapper.ts:13

ident¶

ident: string;

Defined in: ui/map/navdata/NavaidSnapper.ts:14

kind¶

kind: string;

Defined in: ui/map/navdata/NavaidSnapper.ts:15