Trim Joints

The Trim Joints feature allows users to trim away portions of joints outside the selected external volume(s). This allows users to more accurately model geological structures in situations where they terminate or are interrupted within a rock mass (e.g., within an overburden layer, or soil layer, or to model different fractured materials).

The Trim Joints option can be selected after defining the External volume and Joints (including Measured Joints, Synthetic Joints, and/or Joint Surfaces from Add Joint Surface).

To Trim Joints:

Select the Joints workflow tab
Select Joints > Trim Joints
The Select Joints dialog appears. In the Select Joints for Trimming window, select one or more joints and click Next.
The Select Volumes dialog appears. In the Select Volumes to Trim Joints window, select one or more volumes to trim the joints with and click OK.

Only external volumes are valid volumes for Trim Joints. Volumes are sorted by Materials.

The Trimmed joints nodes are added to the Visibility Tree and drawn in the 3D CAD View.

When geometric changes to Synthetic Joint Sets or Measured Joints are made (i.e., editing Joints Definition in Project Settings, geometric properties in Define Synthetic Joints or Define Measured Joints, or Synthetic Joint Set traverse polyline), the trimmed joints are reverted and the joint nodes reflect the previous (untrimmed) joint geometry. When the External volume geometry is modified (e.g., Divide All, Clear External, Add to External), the trimmed joints are reverted and the joint nodes reflect the previous (untrimmed) joint geometry.

Deleting Trimmed Joints

To remove the trim joints operation on any given joint node, select the Delete button beside the joint node in the Visibility Tree. The trimming is reverted and the joint nodes reflect the previous (untrimmed) joint geometry.

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Trim Joints

Deleting Trimmed Joints