How do I regenerate a section?


Existing drillhole cross-sections and plans may need to be updated after updates and additions to a drillhole projects collar, survey and/or downhole data tables. Examples of  changes to these files that may warrant section regeneration include:

- new drillholes are added to a project (including splay/daughter holes)

- new downhole data intervals (from/to) added, such as hole extensions

- new columns are added to the table for new assay elements


1/. Ensure the drillhole project's source MapInfo Pro tables have been updated with the new information, whether these need to be refreshed via a database link, appended to or replaced.

2/. Open the drillhole project via the Project Manager, and ensure that the project SQL database cache is Refreshed (button at the bottom left) with these new updates. We always recommend Validating the new data.

3/. Within the Drillhole Project open, select Drillholes>Section Manager

4/. Within the Section Manager, select the sections you wish to update (select multiple sections by holding the Ctrl key), and press the Regenerate button (middle right).

Alternatively, in previous versions of Discover this can be done manually -

  1. Using the Section Manager, select the Sections you wish to regenerate and tick the Preview box in the bottom left corner of the Manager.

  2. In the collar map window, a layer will be added named “_SECTIONPREVIEWOVERLAY” which contains the section surface lines and envelopes


  3. For each Section preview line, holding the Ctrl key, select the centered section line on the collar map window.  Then use Drillholes->Define New Section or Plan to create a section based on the selected line.  Using the name of an existing section will overwrite the existing files. Repeat this for each Section you need to re-generate

  4. Use Display Downhole Data to re-apply any downhole display you had.  It is useful to have saved the downhole display setting from an existing section to speed up the process.  You can also batch downhole display to multiple sections at a time

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Last Updated on: 25th of March, 2013