> For the complete documentation index, see [llms.txt](https://egiscorp.gitbook.io/xdworld_global_manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://egiscorp.gitbook.io/xdworld_global_manual/introduce/readme.md).

# XDWorld API

EGIS's XDWorld provides an API that supports WEBGL-based GIS services.

<figure><img src="/files/KdYKLaYVFXVfN04kkwLh" alt=""><figcaption></figcaption></figure>

### Features

* Supports 3D rendering based on the next-generation web standard technologies HTML5 and WebGL
* Multi-OS (Windows, Android, iOS) and multi-browser (IE11, Windows Edge, Firefox, Chrome, Safari) support, No-Plugin required
* Offers various JavaScript web APIs for web developers working with 3D spatial data
* Provides basic 3D analysis functions such as distance, area, and volume calculations
* Offers various urban planning simulation and analysis functions
* Capable of utilizing spatial information open platform (V World) data services

### Functions

* Large-scale 3D spatial data loading and level-specific output based on user viewpoint
* Various forms of 3D data viewing and free viewpoint control functions
* Convenient spatial object management functions such as coordinate system transformation and layer control
* Supports mapping of large-scale terrain and satellite/aerial imagery on a planetary scale
* Offers various analysis functions such as visibility, sunlight rights, and skyline slope analysis
* Features for loading various 3D modeling files
* Provides various MashUP functions for the globe-scale V World service