offline_renderer library
Core rendering engine library for datastore-based map rendering.
This library provides the main rendering implementations for converting map data from datastores into visual representations. It includes support for various data sources and rendering strategies.
Key exports:
- DatastoreRenderer: Main renderer for local map data
- ArcGISOnlineRenderer: Renderer for ArcGIS online tile services
- OSMOnlineRenderer: Renderer for OpenStreetMap tile services
- JobRequest/JobResult: Asynchronous rendering job management
- UIRenderContext: Rendering context and state management
- ImageHelper: Utilities for image processing and manipulation
Classes
- DatastoreRenderer
- High-performance tile renderer for datastore-based map data.
- DummyRenderer
- The dummy renderer renders dummy bitmaps for each given job
- ImageHelper
- A helper class for creating placeholder and error tile bitmaps.
- JobRequest
- Request object for tile rendering operations.
- JobResult
- Result object containing the output of a tile rendering job.
- MemoryDatastore
- In-memory datastore implementation for testing and dynamic tile generation.
- MultimapDatastore
- A MapDatabase that reads and combines data from multiple map files. The MultiMapDatabase supports the following modes for reading from multiple files:
- Renderer
- Abstract base class for tile rendering implementations.
Enums
- DataPolicy
- //////////////////////////////////////////////////////////////////////////
- JOBRESULT
- Enumeration of possible job result states.