Export Geosurface to Leapfrog Model File

Use the Geosurface > Export > Leapfrog Model File menu option (geogxnet.dll(Geosoft.GX.ExportLeapfrogModel;Run)*) to export a Geosurface file to a Leapfrog Model file (*.lfm) that can be opened directly in Leapfrog applications.

The option is also available from: 

• The Oasis montaj 3D View > Geosurface > Utilities menu
• The 3D Viewer Geosurface > Geosurface Properties menu

Export Geosurface to Leapfrog Model File dialog options

Input geosurface	Select a Geosurface file to export. Script Parameter: EXPORTLMF.INPUT_SURFACE
Output Leapfrog Model name	The Leapfrog Model file name will be auto-populated with the same name as the input Geosurface file. Script Parameter: EXPORTLMF.OUTPUT_MODEL

Application Notes

Geological models or isosurfaces created in Geosoft 3D Views can be exported to Leapfrog Model files (*.lfm). Leapfrog Model files can store a collection of meshes (e.g. wireframe surfaces) and interpolants (results similar to Geosoft isosurfaces) and these files can be easily opened directly in Leapfrog Geo. A Geosurface with many sub-surfaces will create a Leapfrog Model file with one mesh for each sub-surface.

Colours for the geosurfaces are stored in the Leapfrog Model file and should be retained on import, but transparency and mesh render mode ( Fill, Edges, Fill with edges, and Smoothing) are not stored. These can be edited after import in Leapfrog.

No coordinate system information (datum, projected coordinate system, UTM zone etc) is stored in Leapfrog Model files, so the user must be aware that the coordinate system that was assigned to the exported geosurface file will be the implied coordinate system of the output LFM file.