JobRenderer class abstract

This abstract class provides the foundation to render a bitmap for the given tile.

Implementers

• ArcGisOnlineRenderer
• DummyRenderer
• MapDataStoreRenderer
• MapOnlineRenderer
• MapOnlineRendererWeb

Constructors

JobRenderer()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

createErrorBitmap(int tileSize, dynamic error) → Future<TileBitmap>

creates a bitmap tile with the given errormessage

createMissingBitmap(int tileSize) → Future<TileBitmap>

creates a tile bitmap with the information that the rendering of the given tile is not yet finished. This tile will normally be replaced when the rendering finishes.

createNoDataBitmap(int tileSize) → Future<TileBitmap>

Creates a tilebitmap which denotes that there are no maps with any data found for the given tile.

dispose() → void

executeJob(Job job) → Future<JobResult>

The rendering job to execute.

getRenderKey() → String

Returns a key for the caches. In order to use different caches for different renderings the renderer can provide a unique key. The key should be the same if the rendering should provide the exact same image again. The key should be different if the renderer provides different images. This can be used for light/dark themes. Note that different DisplayModels also may lead to different renderings (e.g. scaleFactors) but this is currently not implemented in the default renderers. We assume that the displaymodel stays the same at one single device or the cache will be deleted if the user changes the scalieFactors.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

retrieveLabels(Job job) → Future<JobResult>

For mapfiles we can either render everything into the images or render just the basic map and rotate the captions while rotating the map. If supported this method returns the captions to draw each time (maybe rotated)

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited