WP
GISBox is a one-stop 3D GIS data editing, conversion and publishing platform that supports editing in multiple GIS formats such as OSGB/GEOTIFF/RVT, converting to 3DTiles/Terrain and publishing.
Introduction
**WP **files are a specific file format for managing and displaying 3D tile data and spatial information. This format is mainly used in geographic information systems (GIS) and 3D visualization platforms, and is designed to efficiently display and distribute large-scale geographic data and city models. WP files store sliced 3D models and texture information, and are suitable for managing and distributing large-scale geographic data sets. Especially in Web-based geographic information visualization and real-time rendering, WP files are widely used due to their lightweight and high-speed display characteristics.
File Structure
WP files usually consist of a binary format containing 3D tile data and meta information, and its structure is as follows:
- Metadata:
- Contains basic information about the dataset (version, creation date, coordinate reference system, etc.).
- Includes display range and tile segmentation information.
- Tile data:
- Stores the actual 3D model in the form of tiles.
- Divides large-scale data into small tile units and loads them according to demand to improve performance.
- Texture information:
- Contains texture information attached to the surface of the 3D model.
- Usually uses lightweight formats such as WebP or KTX2.
Pros
- WP files store data in the form of tiles, which can quickly load and display large amounts of 3D data, and are particularly suitable for real-time rendering on the Web.
- Supports texture compression (WebP/KTX2) and vertex compression (Draco), which can significantly reduce data volume and improve network transmission efficiency.
- Data is managed by tile units, which can automatically control the level of detail (LOD), using low resolution for distant views and high resolution for near views to balance performance and visual quality.
- WP files are compatible with GIS platforms such as CesiumJS, Wings Engine, and ArcGIS, and are widely used.
Cons
- WP files are mainly used for specific GIS and 3D visualization platforms. They require a dedicated viewer or rendering engine and cannot be opened directly in general 3D software.
- WP files are in binary format and are difficult to edit directly. Re-slicing or re-exporting is required when editing.
- Due to compression and tiling, the data may be simplified, and excessive compression may lead to reduced accuracy.
Application Scenario
WP files are widely used in many fields. For example, in urban planning and infrastructure construction, 3D models can be combined with geographic data to design and simulate buildings and transportation networks. In environmental monitoring, WP files can be integrated with meteorological data and terrain information to visualize the impact of climate change. In addition, in disaster response, WP files can be used to create earthquake or flood risk maps to assist in the formulation of rapid response plans.
Example
- Data structure examples.
- File example.
