Geoid Model

When performing coordinate transformation in the projection library, vertical coordinate system transformation and grid projection need to provide vertical datum grid data for effective transformation. EGM2008 geoid model elevation conversion is provided by default in the software. If you need to support other regional geoid models, you need to download the corresponding grid data files. The grid files are provided by the official PROJ library, which can be downloaded here proj-data-1.8, or on the official website https ://proj.org/download.html to download the latest version of proj-data. After downloading, unzip the file to the geoid folder in the software installation directory, the default is C:\Program Files\GreenValley Suite\LiDAR360MLS\8.2.0.0\geoid, "8.2.0.0" is the version number, and there will be differences between different versions.

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Supported Geoid Model