How do I display a 3D DXF file from another application (or feature database .FDB) into a Drillhole Section?


Solution

Discover 2012 introduced the powerful 3D Vector to Section tool (accessed via the Drillholes>Section Manager>Analytical tools>Display 3D Model on Section).

This allows the easy display of multiple .DXF and Discover 3D .FDB vector models onto the selected cross-sections as attributed polygons and polylines, each in their own TAB file layer. These input models can be  polyhedron volumes (e.g. mineralisation halos or proposed open cut wireframes) or surfaces (such as fault planes or unconformity surfaces) modelled in either Discover 3D or a 3rd party application.

For instance, this functionality allows you to effortlessly take your 3D models, such as :



And slice / intersect them across multiple 2D sections, with an assigned style per model, producing polygons and polylines stored and managed on a per section basis:




This capability therefore opens a wealth of further analytical options within your 2D drillhole cross-sections, such as using the resulting sectional mineralisation polygons to constrain IDW grids interpolated from downhole assays within the sections.




Workaround for older (pre-2012) versions:

This will only work if the cross sections are orientated exactly North-South or East-West.

1)       Navigate to Discover>Import and Export>Vector Import
2)       Select your DXF file and see the projection to "Non-earth meters" (if your drillhole project is in a ft based projection then select non-earth ft).
3)       Set the Convert to 2D from the East/west/south/north depending on the view of your section.
4)       Under Transform Coordinates, Set the Add X/Y to subtract (negative) the start coordinate of the section line. For example, if you section line starts from (65512E,74865N) then set Add X = -65512, Add Y = -74865.
5)       Import and open the TAB file into the same window as the cross section.





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Last Updated on: 20th of January, 2015