It is used as a terrain data model in public works in the field of civil engineering and construction.
This is a viewer app that supports LandXML format (TIN surface) files.
You can read the terrain model saved in LandXML format and display it on the screen, display the data from a free viewpoint, and check the 3D coordinates of the point being displayed.
Instruction manual link for this app
https://drive.google.com/file/d/1e4kmuoj7qBXRVUY32fyD1o3Du8Q31Jet/view?usp=sharing
For compatible GNSS observation systems, please contact us from the following site.
https://www.qzss4survey.com/