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  • Frans Basson

GEM4D on-line tutorial session

The third on-line tutorial occurred on Tuesday 10 November and is now available on YouTube from:

Press "SHOW MORE" below the video to expand the listed topics with hyperlinks that directly jump to the correct timeslot in the video.

The following topics were covered:

  1. Simplification of CMS meshes: 00.00 to 09:56

  2. Simplification of many meshes for modelling: 09:56 to 22:51

  3. Record mapping data from development picking: 22:51 to 25:05

  4. Record mapping data from photogrammetry: 25:05 to 29:12

  5. Record mapping data from notes on paper copies: 29:12 to 36:07

  6. Build warped geological fault surfaces: 36.07 to 40:15

  7. Present prism data as colours and vector arrows: 40:15 to 45:07

  8. Build faults from RQD logging data: 45:07 to 49:07

  9. Calculate and colour code ERF on development: 49:07 to 50:30

  10. Importance of mesh resolution and colouring: 50:30 to 51:25

  11. Different ways to visualise block models: 51:25 to 54:50

  12. Different clippings (sections) through meshes: 54.50 to 57:26

  13. Transform a mesh to a new coordinate system: 57.26 to 59:26

  14. Colour on the distance between meshes: 59.26 to 1:02:03

  15. Drape an image onto a mesh: 1:02:03 to 1:04:19

NOTE: The functionality described in Point 1 and 2 will be available in Version I thought this version would have been published by now, but a bit busy at work and need another week or two.

Images below:

  • The top image shows how Marker and Mapping data can be combined to visualise prism data as both mesh colours and velocity arrows.

  • The bottom images show the draping of a transformed image onto a topography with a single button click. Saving an image after transformation (Right panel => Scale/Rotate/Move) to match the mine grid, allows for the image to be draped onto any mesh. To reproduce, combine the information in Point 5 "Record mapping data from notes on paper copies" & Point 15 "Drape an image onto a mesh".

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