# Horizon

> Horizon is a 3D engine for geospatial data visualization. It is built to be multi-platform (Native and Web through WebAssembly) and ships API bindings for C++ and TypeScript.

The engine supports imagery rasters, DTM rasters, vector data, glTF models, 3D Tiles, has many interactive tools & features, and extensive customization options.

## Documentation

- [Quick integration guide](/doc/llm/quickstart.md): start here for any new Horizon integration — baseline package names, minimal init sequence, and required build/runtime configuration.
- [Key concepts for TypeScript](/doc/llm/index.md): essential concepts and patterns for using the TypeScript API.
- [API reference summary](/doc/llm/api_index.md): categorized list of all API methods with brief descriptions.
- [Full API reference](/doc/reference/index.md): comprehensive reference for all Protocol Buffers messages and services, which form the basis of the engine’s APIs.

## TypeScript examples

- [01_init](/doc/llm/patterns/01_init.ts)
- [02_raster_layer](/doc/llm/patterns/02_raster_layer.ts)
- [03_vector_stack](/doc/llm/patterns/03_vector_stack.ts)
- [04_picking](/doc/llm/patterns/04_picking.ts)
- [05_client_data](/doc/llm/patterns/05_client_data.ts)
- [06_camera_animation](/doc/llm/patterns/06_camera_animation.ts)


## Optional

### Extensive documentation: General

- [Introduction](/doc/index.md)
- [Changelog](/doc/changelog.md)
- [Artifacts](/doc/artifacts.md)
- [Getting started](/doc/getting_started.md)
- [Hardware & platform](/doc/platform.md)
- [Graphics configuration](/doc/graphics_configuration.md)
- [Implementing a backend](/doc/custom_backend.md)
- [Using the API](/doc/using_api.md)
- [The scene model](/doc/scene_model.md)
- [The message queue](/doc/message_queue.md)
- [Platform events](/doc/events_handling.md)
- [Attributions](/doc/attributions.md)
- [Ambient settings](/doc/ambient_settings.md)
- [Numeric palettes](/doc/numeric_palettes.md)
- [Blend modes](/doc/blend_modes.md)
- [Monitoring the engine](/doc/monitoring.md)
- [Translating Mapbox scenes](/doc/mapbox_scenes.md)
- [Visibility constraints](/doc/visibility_constraints.md)
- [Loading priorities](/doc/loading_priorities.md)
- [Client-provided asset data](/doc/client_asset_data.md)

### Extensive documentation: Rasters

- [Raster data providers](/doc/raster_providers.md)
- [Tiled raster provider](/doc/tiled_raster_provider.md)
- [Image formats](/doc/raster_image_formats.md)
- [Palettized image raster](/doc/palettized_image_raster.md)
- [DTM rasters](/doc/dtm_raster.md)
- [Stacking rasters](/doc/multiple_rasters.md)
- [Terrain settings](/doc/terrain_settings.md)

### Extensive documentation: Vectors

- [Vector data layers](/doc/vector_data_layers.md)
- [Attributes](/doc/vector_attributes.md)
- [Client-provided vector data](/doc/client_vector_data.md)
- [Vector tile layers](/doc/vector_tile_layers.md)
- [Styling API](/doc/styling_api.md)
- [Extruded vectors](/doc/extruded_vectors.md)
- [Instanced 3D models](/doc/instanced_models.md)
- [Cylinders](/doc/cylinders.md)
- [Flat overlays](/doc/flat_overlays.md)
- [Heatmaps](/doc/heatmaps.md)
- [Symbols](/doc/symbols.md)
- [Enumerations available in style scripts](/doc/style_enums.md)

### Extensive documentation: 3D models

- [Single 3D model](/doc/single_model.md)
- [Dynamic materials](/doc/dynamic_materials.md)
- [3D Tiles](/doc/3d_tiles.md)
- [Styling and filtering 3D Tiles](/doc/styling_3d_tiles.md)
- [Flat overlays over 3D Tiles](/doc/flat_overlay_over_3d_tiles.md)

### Extensive documentation: Interactions

- [Picking](/doc/picking.md)
- [Selection & highlighting](/doc/selection.md)
- [Gizmos](/doc/gizmos.md)
- [Clipping](/doc/clipping.md)
- [Viewshed](/doc/viewshed_analysis.md)
- [Camera controls](/doc/camera_controls.md)
- [Multiview](/doc/multiview.md)
- [Shape editor](/doc/shape_editor.md)
- [Screen captures](/doc/screen_captures.md)

### Extensive documentation: glTF extensions

- [SIRADEL_templated_image_url](/doc/SIRADEL_templated_image_url.md)
- [SIRADEL_data_texture](/doc/SIRADEL_data_texture.md)

### Extensive documentation: 3D Tiles extensions

- [SIRADEL_range_request](/doc/SIRADEL_range_request.md)

### Extensive documentation: Resources

- [Known SRIDs](/doc/crs_database.md)
- [Third-party licenses](/doc/third_party_licenses.md)