Planes Tips Part 3: Rotating Data on a Plane in GEOVIA Surpac

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Today’s tip will explore how to rotate any data on a plane in GEOVIA Surpac. Specifically, I will rotate a CMS pickup using a plane created by three points.

For Planes basics, check out our post on why you should use planes and digitizing on a plane.

We will be using the below CMS shot. It needs to be slightly rotated to match an existing void pickup.

  1. First, create a plane that you want to rotate the data about. Go to Planes > Inclined > Plane through 3 points.
  2. Follow the instructions on the status bar to create the plane. Note that it will be Dynamic (not saved) and may not show unless you have done some work with planes during your current Surpac session.
  3. Surpac should now look similar to below. If it doesn’t, use Planes >3D work area to reveal the plane (which is a semi-opaque blue rectangle).
  4. The data can now be rotated along this plane. Use the Surpac Function (PM) or the menu Display > Point > Markers to show the markers that make up the object.
    Note: If you are rotating a DTM, do not drag the string file in to do this! You can access the strings from inside the DTM and when rotating the string, the dtm will also be rotated. The below diagram shows the DTM with the markers displayed (PM).

  5. Now, use the Surpac function Edit > Move string constrained by > Rotation (ROTS)
  6. Select the pivot point to rotate about. In this example I will select a point somewhere in the middle.
  7. Next, select another point and then drag the mouse to rotate the data. In this example, I will select the point towards the extents of the data so that the rotation is easier to control.
  8. I have rotated the data down slightly (note that it is constrained to the plane).
  9. When you let go of the mouse, a confirmation box will appear.  This is alerting you to the angle of shift. Hit Apply to accept the rotation and your data will be moved.
  10. You can type (ERM) to erase the markers and show the rotated DTM, as below:

Your DTM is now rotated. Stay tuned for the next tip on creating parallel planes in Surpac, or check out our previous Planes tips.

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Ash Colton

Ash Colton

Mining Knowledge Consultant, GEOVIA at Dassault Systèmes
Ash Colton is a qualified Mining and Engineering Surveyor with over 14 years' experience. Ash has worked on a number of mine sites (open cut and underground) and specializes in GEOVIA Surpac, MineSched and Macros. Ash is based in Perth, Australia.
Ash Colton

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