Model Data Formats are the exchange formats g-Space uses for 3D models, geobodies and volumes - structured and tetrahedral grids, voxel volumes, and geobody geometry. Triangulated surfaces and polylines are described separately in GOCAD Data Formats; corner-point reservoir grids in Grid Data Formats.

Supported formats

• GOCAD SGrid (ASCII .sg + companion data) - 3D structured grid with grid properties. Import and export.
• GOCAD TSolid - tetrahedral grid. Import and export.
• GOCAD Voxet - 3D voxel grid. Import only.
• RESQML EPC (.epc) - polygons, tetrahedral / 3D grids, multi-Z surfaces and point sets. Import and export.
• VTK (.vtk) - tetrahedral grid as an unstructured mesh with properties. Export only.
• DXF (AutoCAD, .dxf) - polygons and geobodies. Import and export.

GOCAD SGrid, TSolid and Voxet

GOCAD SGrid stores a 3D structured (stratigraphic) grid together with its grid properties; it is written as an ASCII header (.sg) plus companion binary/ASCII data files. GOCAD TSolid stores a tetrahedral grid, and GOCAD Voxet stores a regular 3D voxel volume. SGrid and TSolid support both import and export; Voxet is import only.

For the workflow see Import 3D models and Export 3D models.

RESQML EPC

RESQML is the Energistics reservoir data-exchange standard. A single .epc package can carry polygons, tetrahedral and 3D grids, multi-Z surfaces and point sets. Both import and export are supported.

See Import RESQML and Export RESQML.

VTK

A tetrahedral grid can be exported to VTK (.vtk) as an unstructured mesh with its properties, for use in external visualization tools. VTK is export only. See Export to VTK.

DXF (AutoCAD)

DXF files carry polygons and geobody geometry. g-Space reads DXF through the bundled libdxfrw library and offers an option to invert the Z axis on import. Both import and export are supported.

See Import DXF and Export DXF.

See Also

Grid Data Formats | GOCAD Data Formats | Import grids | Export grids