In the field of geographic information system (GIS) and 3D data processing, different data formats have their unique application scenarios and advantages. The PLY (Polygon File Format) format is often used to store polygonal mesh data, while the 3DTiles format performs well in the display of 3D scenes on the Web. Converting the PLY format to the 3DTiles format can expand the scope of data application and improve the display effect. With the help of GISBox software, this conversion process can be completed efficiently.
Understand the PLY and 3DTiles formats
The PLY format is a simple text format used to store geometric information of 3D models, such as vertex coordinates, surface connection relationships, etc. It is easy to understand and edit, and is widely supported in many 3D modeling and data processing software.
The 3DTiles format is a format designed for efficient transmission and display of massive 3D geospatial data on platforms such as Web browsers. It adopts a hierarchical and block-based organization method, and can dynamically load and render data according to the user's perspective and distance, greatly improving data loading speed and rendering efficiency.
Conversion steps based on GISBox
- Create a new tiling task: Start the GISBox software, click the "Slice" function in the toolbar on the left side of the software interface, and then click the "New" button in the upper right corner to create a new tiling task.
- Add PLY file: Select "3DGS Tiling" on the left side of the opened tiling task window, and then click Add PLY file. GISBox's powerful data parsing ability can quickly read the geometric information in the PLY file and build the corresponding 3D model data structure inside the software.
- Set conversion parameters: You can set the conversion parameters below: "Export path, spatial reference, zero point coordinates".
- Execute conversion: After confirming that all parameter settings are correct, click the "OK" button, GISBox will convert the preprocessed PLY data into 3dtiles format according to the set parameters. After the conversion is completed, you can view it in "Completed".
Precautions during the conversion process
Data accuracy: During data preprocessing and conversion, pay special attention to maintaining data accuracy. Especially when simplifying the model, avoid distortion of the model's geometric shape due to over-simplification, which will affect the final display effect.
File size: The size of the converted 3dtiles file will affect the data loading speed. Before conversion, minimize unnecessary data redundancy and optimize the data structure through data preprocessing to reduce the size of the final generated 3dtiles file and improve the data loading efficiency in network transmission and application.
Summary
With the help of GISBox software, the process of converting PLY format to 3DTiles format becomes relatively simple and efficient. As long as you follow the correct steps and pay attention to the above matters, you can successfully achieve the conversion. If you have similar needs, you might as well try it out.
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