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Class: MapWaypointRenderer

Defined in: src/garminsdk/components/map/MapWaypointRenderer.ts:35

A renderer which draws waypoints to a Garmin-style map.

Extends

  • MapWaypointRenderer<Waypoint>

Constructors

Constructor

new MapWaypointRenderer(textManager): MapWaypointRenderer

Defined in: src/garminsdk/components/map/MapWaypointRenderer.ts:40

Constructor.

Parameters

ParameterTypeDescription
textManagerMapCullableTextLabelManagerThe text manager to use for waypoint labels.

Returns

MapWaypointRenderer

Overrides

BaseMapWaypointRenderer<Waypoint>.constructor

Properties

onWaypointAdded

readonly onWaypointAdded: SubEvent<any, Waypoint>

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:128

An event to subscribe to, fired when waypoints are added to the renderer.

Inherited from

BaseMapWaypointRenderer.onWaypointAdded


onWaypointRemoved

readonly onWaypointRemoved: SubEvent<any, Waypoint>

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:133

An event to subscribe to, fired when waypoints are removed from the render.

Inherited from

BaseMapWaypointRenderer.onWaypointRemoved


registered

protected readonly registered: Map<string, MapWaypointRendererEntry<Waypoint>>

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:116

Inherited from

BaseMapWaypointRenderer.registered


roleDefinitions

protected readonly roleDefinitions: Map<number, MapWaypointRenderRoleDef<Waypoint>>

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:123

This renderer's render role definitions. Waypoints assigned to be rendered under a role or combination of roles with no definition will not be rendered.

Inherited from

BaseMapWaypointRenderer.roleDefinitions


selectRoleToRender

protected readonly selectRoleToRender: MapWaypointRenderRoleSelector<Waypoint> = MapWaypointRenderer.DEFAULT_RENDER_ROLE_SELECTOR

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:143

A function which selects roles under which to render waypoints. Defaults to MapWaypointRenderer.DEFAULT_RENDER_ROLE_SELECTOR.

Inherited from

BaseMapWaypointRenderer.selectRoleToRender


textManager

protected readonly textManager: MapCullableTextLabelManager

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:142

The text manager to use for waypoint labels.

Inherited from

BaseMapWaypointRenderer.textManager


toCleanUp

protected readonly toCleanUp: Set<MapWaypointRendererEntry<Waypoint>>

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:117

Inherited from

BaseMapWaypointRenderer.toCleanUp


NULL_ROLE_DEF

protected readonly static NULL_ROLE_DEF: object

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:73

A null render role definition. Icons rendered under this role are never visible.

canvasContext

canvasContext: null = null

iconFactory

iconFactory: null = null

labelFactory

labelFactory: null = null

visibilityHandler()

visibilityHandler: () => boolean

Returns

boolean

Inherited from

BaseMapWaypointRenderer.NULL_ROLE_DEF

Methods

addRenderRole()

addRenderRole(role, def?): boolean

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:164

Adds a render role to this renderer. If the role has already been added to this renderer, this method does nothing.

Parameters

ParameterTypeDescription
rolenumberThe render role to add.
def?MapWaypointRenderRoleDef<Waypoint>The render role's definition. If undefined, the new role will be assigned a default definition with no defined rendering context, icon, or label factories, and a visibility handler which always returns true.

Returns

boolean

Whether the render role was successfully added.

Inherited from

BaseMapWaypointRenderer.addRenderRole


clearRenderRoles()

clearRenderRoles(): void

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:205

Removes all render roles from this renderer.

Returns

void

Inherited from

BaseMapWaypointRenderer.clearRenderRoles


deregister()

deregister(waypoint, role, sourceId): void

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:334

Removes a registration for a waypoint for a specific role or roles. Once all of a waypoint's registrations for a role are removed, it will no longer be rendered in that role the next this renderer's update() method is called.

Parameters

ParameterTypeDescription
waypointWaypointThe waypoint to deregister.
rolenumberThe role(s) from which the waypoint should be deregistered.
sourceIdstringThe unique string ID for the source of the registration to remove.

Returns

void

Inherited from

BaseMapWaypointRenderer.deregister


getNearestWaypoint()

getNearestWaypoint<T>(pos, first?): undefined | T

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:405

Gets the nearest waypoint currently registered in the renderer.

Type Parameters

Type ParameterDefault type
T extends WaypointWaypoint

Parameters

ParameterTypeDescription
posLatLonInterfaceThe position to get the closest waypoint to.
first?(waypoint) => booleanA predicate that will search the list of closest waypoints for a match, and return the first one found.

Returns

undefined | T

The nearest waypoint, or undefined if none found.

Inherited from

BaseMapWaypointRenderer.getNearestWaypoint


getRenderRoleDefinition()

getRenderRoleDefinition(role): undefined | Readonly<MapWaypointRenderRoleDef<Waypoint>>

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:189

Gets the definition for a render role.

Parameters

ParameterTypeDescription
rolenumberA render role.

Returns

undefined | Readonly<MapWaypointRenderRoleDef<Waypoint>>

The definition for the specified render role, or undefined if no such role has been added to this renderer.

Inherited from

BaseMapWaypointRenderer.getRenderRoleDefinition


hasRenderRole()

hasRenderRole(role): boolean

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:152

Checks whether a render role has been added to this renderer.

Parameters

ParameterTypeDescription
rolenumberThe render role to check.

Returns

boolean

Whether the render role has been added to this renderer.

Inherited from

BaseMapWaypointRenderer.hasRenderRole


isRegistered()

isRegistered(waypoint, role?): boolean

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:288

Checks if a waypoint is registered with this renderer. A role or roles can be optionally specified such that the method will only return true if the waypoint is registered under those specific roles.

Parameters

ParameterTypeDescription
waypointWaypointA waypoint.
role?numberThe specific role(s) to check.

Returns

boolean

whether the waypoint is registered with this renderer.

Inherited from

BaseMapWaypointRenderer.isRegistered


register()

register(waypoint, role, sourceId): void

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:312

Registers a waypoint with this renderer under a specific role or roles. Registered waypoints will be drawn as appropriate the next time this renderer's update() method is called. Registering a waypoint under a role under which it is already registered has no effect unless the source of the registration is different.

Parameters

ParameterTypeDescription
waypointWaypointThe waypoint to register.
rolenumberThe role(s) under which the waypoint should be registered.
sourceIdstringA unique string ID for the source of the registration.

Returns

void

Inherited from

BaseMapWaypointRenderer.register


removeRenderRole()

removeRenderRole(role): boolean

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:179

Removes a render role from this renderer.

Parameters

ParameterTypeDescription
rolenumberThe render role to remove.

Returns

boolean

Whether the render role was successfully removed.

Inherited from

BaseMapWaypointRenderer.removeRenderRole


renderRoles()

renderRoles(): IterableIterator<number>

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:198

Gets an iterable of render roles added to this renderer. The iterable will return the roles in the order in which they were added.

Returns

IterableIterator<number>

An iterable of render roles added to this renderer.

Inherited from

BaseMapWaypointRenderer.renderRoles


setCanvasContext()

setCanvasContext(role, context): boolean

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:252

Sets the canvas rendering context for a render role. If the render role has not been added to this renderer, this method does nothing.

Parameters

ParameterTypeDescription
rolenumberA render role.
contextCanvasRenderingContext2DA canvas 2D rendering context.

Returns

boolean

Whether the context was set.

Inherited from

BaseMapWaypointRenderer.setCanvasContext


setIconFactory()

setIconFactory(role, factory): boolean

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:216

Sets the factory to use to create waypoint icons for a render role. If the render role has not been added to this renderer, this method does nothing.

Parameters

ParameterTypeDescription
rolenumberA render role.
factoryMapWaypointRendererIconFactory<Waypoint>A waypoint icon factory.

Returns

boolean

Whether the factory was set.

Inherited from

BaseMapWaypointRenderer.setIconFactory


setLabelFactory()

setLabelFactory(role, factory): boolean

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:234

Sets the factory to use to create waypoint labels for a render role. If the render role has not been added to this renderer, this method does nothing.

Parameters

ParameterTypeDescription
rolenumberA render role.
factoryMapWaypointRendererLabelFactory<Waypoint>A waypoint label factory.

Returns

boolean

Whether the factory was set.

Inherited from

BaseMapWaypointRenderer.setLabelFactory


setVisibilityHandler()

setVisibilityHandler(role, handler): boolean

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:270

Sets the handler that determines if a waypoint should visible for a render role. If the render role has not been added to this renderer, this method does nothing.

Parameters

ParameterTypeDescription
rolenumberA render role.
handler(waypoint) => booleanA function that determines if a waypoint should be visible.

Returns

boolean

Whether the handler was set.

Inherited from

BaseMapWaypointRenderer.setVisibilityHandler


update()

update(mapProjection): void

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:364

Redraws waypoints registered with this renderer.

Parameters

ParameterTypeDescription
mapProjectionMapProjectionThe map projection to use.

Returns

void

Inherited from

BaseMapWaypointRenderer.update


DEFAULT_RENDER_ROLE_SELECTOR()

readonly static DEFAULT_RENDER_ROLE_SELECTOR<T>(entry, roleDefinitions): number

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:102

The default render role selector. For each waypoint entry, iterates through all possible render roles in the order they were originally added to the renderer and selects the first role under which the entry is registered and is visible.

Type Parameters

Type Parameter
T extends MapWaypoint

Parameters

ParameterTypeDescription
entryMapWaypointRendererEntry<T>A waypoint entry.
roleDefinitionsReadonlyMap<number, Readonly<MapWaypointRenderRoleDef<T>>>A map from all possible render roles to their definitions.

Returns

number

The role under which the waypoint entry should be rendered, or 0 if the entry should not be rendered under any role.

Inherited from

BaseMapWaypointRenderer.DEFAULT_RENDER_ROLE_SELECTOR


ENTRY_SORT_FUNC()

protected readonly static ENTRY_SORT_FUNC(a, b): number

Defined in: src/sdk/components/map/MapWaypointRenderer.ts:88

Sorts waypoint entries such that those with icons of higher priority are sorted after those with icons of lower priority.

Parameters

ParameterTypeDescription
aMapWaypointRendererEntry<any>The first waypoint entry to sort.
bMapWaypointRendererEntry<any>The second waypoint entry to sort.

Returns

number

A negative number if the first entry is to be sorted before the second, a positive number if the second entry is to be sorted before the first, and zero if the entries' relative sorting order does not matter.

Inherited from

BaseMapWaypointRenderer.ENTRY_SORT_FUNC