DXF (Drawing Exchange Format) is the AutoCAD interchange format. g-Space exports polygon and geobody geometry to .dxf files so the data can be opened in AutoCAD and other CAD/GIS packages. Writing is handled internally by the bundled libdxfrw library.

Purpose

Write g-Space polygons (and geobody outlines) out as AutoCAD DXF geometry. Each polygon is exported as a closed polyline on its own layer, with a text label at the polygon centroid. Export requires a Seismic Interpretation license.

Launching the export

Export is launched from the Data manager context menu. Right-click one or more polygons, or the polygons group, and choose one of:

• Export to DXF file - exports the selected polygon.
• Export all polygons to DXF file - exports every polygon in the group.

[image: placeholder_Data_manager_context_menu_with_the_Expor.png]

Step-by-step

1. Select the polygon(s) to export in the Data manager and open the context menu.
2. Choose Export to DXF file or Export all polygons to DXF file.
3. In the Save Polygons to DXF file dialog, pick a location and file name. The .dxf extension is added automatically if you omit it.
4. Confirm to write the file. Open the resulting .dxf in your CAD/GIS application to verify the geometry.

[image: placeholder_Save_Polygons_to_DXF_file_dialog_with_th.png]

Notes

• Files are written in AutoCAD AC1024 (2010) DXF format.
• Each polygon becomes a closed LWPOLYLINE placed on a layer named after the polygon's owner (or the polygon name when no owner is set).
• A TEXT label with the polygon name is written at the polygon centroid on a dedicated Labels layer.
• Polygon coordinates are written in the project coordinate system; DXF stores no CRS metadata, so record the units and datum separately if the file will be shared.

See Also

Model Data Formats | Import DXF | Export polygons