Datamine Discover KB - 3D Drillholes

Are drillhole HoleIDs case sensistive?

kbadmin — Wed, 05 Nov 2025 02:46:28 GMT

Yes Discover Drillhole tools was compare HoleID primary keys with case sensitive.

There is a validation option to check for Collar name mismatch, this will return any HoleID values which are not found in the Collar table, including case differences only.

It is recommonded to convert all HoleID field values to upper case to avoid issues.

What modes of displaying drillhole data information are available?

kbadmin — Wed, 04 Sep 2024 23:32:18 GMT

Occurrence

What modes of displaying drillhole data information are available?

Solution

Two modes of displaying drillhole information are available, interactive and static.

Interactive Selection

This is the default behaviour, when a drillhole branch is made selectable and data sheet visible, when the mouse cursor is hovered over a drill trace the downhole data is dynamically displayed.

Static Selection

When a drillhole branch is made selectable and data sheet visible, when the mouse cursor is hovered over a drill trace the user must left mouse click to display a downhole data attribute.

To toggle between the two states Right click on the Drillhole branch in the Session Window and select ‘Interactive Selection’.

If the option has a tick displayed, is active, if it is disabled, static selection will be used.

To toggle the default behaviour, navigate to File>Settings>View tab.

How do I display a 3D vector file from another application into a Drillhole Section?

kbadmin — Thu, 21 May 2020 22:37:55 GMT

Solution

You can do this, by selecting all sections you wish to display it on in the section manager (select multiple by CTRL>Left Click).

Then go to the 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 isosurface halos or proposed open cut wireframes) or surfaces (such as fault planes or unconformity wireframes/TINS) modelled in either Discover 3D or a 3rd party application.

The tool will display the intesection of the vectors with with 2D section plane.

NOTE It will not project or include all data in the envelope, it will only show data that intersects the section plane. If you wish to see all data within a section envelope, you can do this dynamically with the Discover3D Cursor Plane.

For instance, this functionality allows you to 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:

You cannot add or edit the existing fill patterns listed in MapInfo Professional polygon styles.

There is a third party tool that does this -

https://fillpattern.com/#

You can create a series of objects that will imitate a fill pattern using Discover>Map Making>Apply See Thru Shading or MODIFY>Edit>Custom Patterns.

You can add custom bitmaps into the C:\Users\USERNAME\AppData\Roaming\Encom\Common\Fill_Patterns- these will then appear within the Legend (Colour Pattern) Editor.
However they will not appear when applied to a 2D cross section. They will only work in the Discover3D or PA windows.

My drillhole collar positions do not match up with a DEM / DTM grid in the 3D view or drillhole cross-section.

Josh Knight — Tue, 03 Jul 2018 22:55:04 GMT

Discover plots the Drillhole collars at the value in the selected elevation field in the collar table. This value can differ from the topographic (DEM/DTM) grid you have selected in the Drillhole project setup. Discover never "auto adjusts" the value for these too match when plotted in a cross section.

Possible reasons for this are -

1. Were your collars only assigned an arbitrary height (e.g. 550m ASL) during regional exploration, prior to an accurate elevation grid surface being provided (e.g. from a geophysical survey program).
Perhaps update the collar table (as used by your Discover Drillhole Project) RL/Z value field from the appropriate accurate DEM / DTM grid surface using either the -

Legacy grids -

SURFACE>Utilities>Assign Values option

Raster Grids

RASTER>Raster Operations>Point Inspection option

2. Are your collars accurately surveyed, and you are using a coarse DTM surfaces grid, such as the SRTM Australia scale data? If so, you may need to obtain a higher quality DTM dataset, or if you have enough elevation points in your area, create a new DTM from the points using SURFACES>Interactive Gridding.

3. In the Discover 3D environment, has any kind of vertical exaggeration or offset been applied to either individual data types (through the relevant Property dialogs in the Workspace Tree) or to the 3D view ...

Drillhole traces are not plotting correctly

Josh Knight — Thu, 05 Oct 2017 23:56:31 GMT

Solution

Check the following common issues:

Are the drillholes going up into the sky?
Have you ticked the 'Down Dip is negative' option in the Drillholes Project Setup dialog?
Are the drillholes plotting entirely vertically?
Have you set up the correct Dip and Azimuth fields in the Drillholes>Project Setup? If you do not have a separate downhole survey table then you need to have two columns in the collar table for hole dip and azimuth. If you do have a downhole survey table then you need to make sure the correct fields are matched in the Drillholes>Project Setup.
Are your various Field names in the Project Setup dialog correctly assigned?

Check your mapping for fields in the Drillholes>Project Setup are correct (Dip to Dip, RL to Z, etc).

I cannot display drillholes in 3D

Josh Knight — Thu, 09 Aug 2007 23:24:44 GMT

Solution

To display drillholes in Discover 3D, the drillholes and associated data must be part of a Discover
Drillhole Project. To create a Drillhole Project, run the Drillholes > Project Setup tool in Discover.

You cannot open a drillhole proejct directly in 3D, it must be firstly opened in Mapinfo Drillholes menu, and then

"pushed" to 3D using the Mapinfo Discover3D>View Drillhole traces option.