Renderer class abstract

Abstract base class for tile rendering implementations.

This class defines the contract for rendering map tiles from various data sources. Implementations handle specific data sources (local files, online services) and provide both tile rendering and label extraction capabilities.

Key responsibilities:

  • Execute rendering jobs to generate tile bitmaps
  • Extract labels for separate rendering (rotation support)
  • Provide cache keys for optimization
  • Manage renderer lifecycle and resources
Implementers

Constructors

Renderer()

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

dispose() → void
Disposes of renderer resources and cleans up.
executeJob(JobRequest jobRequest) → Future<JobResult>
Executes a rendering job to generate a tile bitmap.
getRenderKey() → String
Returns a unique cache key for this renderer configuration.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
retrieveLabels(JobRequest jobRequest) → Future<JobResult>
Retrieves labels for separate rendering to support map rotation.
supportLabels() → bool
Returns whether this renderer supports separate label rendering.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited