The Rocscience International Conference 2021 Proceedings are now available. Read Now
 

Search Results

Divide/Un-Divide All Geometry

Divide All Geometry

You can divide your External volume by all possible intersecting surfaces and volumes to generate multiple external volume regions.

  1. Select the Geometry Geology workflow tab workflow tab.
  2. Ensure that you have at least one External volume and one Non-external volume. Only geometries with a geology or excavation role will be used to divide the External volume.
  3. Select the Divide All Geometry Divide all Geometry icon option from the toolbar or the 3D Boolean sub-menu in the Geometry menu. You can only use this operation once per model.
  4. All possible divisions of the External volume will be generated.

There are four options in the Divide All dialog:

  • Quality: High, Default, Low and Custom

Options in the Divide All dialog

The High, Default and Low quality settings are presets, each automatically sets the three options “Discard Unresolved”, “Strict Constraint” and “Feature Preservation” when chosen.

With custom setting, these options are enabled for user input:

  • Discard Unresolved (ON/OFF)
    • When checked, difficult intersections between geometry pieces are neglected during Divide All. Consequently, geometry features or boundaries could disappear if these intersections are bypassed.
  • Strict Constraint (ON/OFF)
    • Very small gaps can appear between geometries. Sometimes the nearly touching surfaces are not close enough to be merged and leaving a gap in between. These are bad geometric features and sometimes critical to compute. If checked, Divide All process will keep iterating a repair process until the small gap is removed.
  • Feature Preservation: High, Medium Low
    • Divide All runs a repair process to condition the geometries. The options are the same as the ones Re-Triangulate function:
      • High: Strict detail preservation, regardless of quality (e.g. can preserve near degenerate, sliver triangles)
      • Medium: The processed geometry may lose some details as it attempts to reduce the amount of bad triangles
      • Low: Re-triangulate with little constraints, which can result in obvious alteration, usually for simplifying geometry
  • Remove Volume Less than:
      • combines any divided piece that has a volume less than the user-specified value to a larger one. It is identical to collapse small volume command, where it finds all volumes below the threshold and glue them together. The unit of the volume is consistent with the defined units in project settings.
  • Merge Tolerance
      • User defines the tolerance for merging the volumes of the geometry. Set the value <=0 for the program to automatically set the tolerance. Otherwise, any value >0, the user-defined tolerance will be applied to merge the geometry. The unit of the tolerance volume is consistent with the defined units in project settings.

Un-Divide All Geometry

You can revert the divided External volume that you created using the Divide All Geometry option by using Undivide All Geometry. You will obtain back the original External volume before it was divided.

  1. Select the Geometry Geology workflow tab workflow tab.
  2. Ensure that you have at least one External volume and one Non-external volume. Only geometries with a geology or excavation role will be used to divide the External volume.
  3. Select the Un-Divide All Geometry Un-Divide All Geometry icon option from the toolbar or the 3D Boolean sub-menu in the Geometry menu.
  4. The original External volume before Divide All Geometry option was used should re-appear in your model.

Note: A warning error message 'Existing Divided External is no longer valid' may occur if geometry you're trying to Divide All was already divided in the older version
To solve this issue, simply use Un-Divide All for the model and run Divide All again.

If there is only one external geometry and this error message occurs, try to use either Ungroup Non-Manifold or run geometry repair tool to make one contiguous geometry. In order to resolve this issue, try the following steps:
1. Select Geometry > Clear external
2. Perform geometry repair by selecting Geometry > Repair Tools > Repair Or Geometry > Surface Triangulation > Ungroup Non-Manifold
3. Set the geometry back to external by selecting Geometry > Set as External
4. Once this is done, run Geometry > 3D Boolean > Divide All Geometry again.

Account Icon - click here to log in or out of your account Shopping Cart icon Click here to search our site Click here to close Learning Tech Support Documentation Info Chevron Delete Back to Top View More" PDF File Calendar Location Language Fees Video Click here to visit Rocscience's LinkedIn page Click here to visit Rocscience's YouTube page Click here to visit Rocscience's Twitter page Click here to visit Rocscience's Facebook page Click here to visit Rocscience's Instagram page Bookmark Network Scroll down for more Checkmark Download Print Back to top Single User Multiple Users CPillar Dips EX3 RocFall RocPlane RocSupport RocTopple RS2 RS3 RSData RSPile Settle3 Slide2 Slide3 SWedge UnWedge Commercial License Education License Trial License Shop safe & secure Money-back guarantee