Subtract From

Create complex geometry by subtracting geometry from an overlapping (target) part.

After a subtract operation is performed, the target part is indicated by the icon in the model tree.

Figure 1. The indicating the target part in the subtract operation.
Note: Regions are taken into account during the subtract operation:
  • Subtracting a shell structure (a free space region that implies an empty / hollow closed structure) generates new regions, faces or edges on intersecting geometry. No geometry is removed.
  • Subtracting a solid structure (a region that is not set to free space) results in geometry being removed from any intersecting parts.

Figure 2. An intersecting flare and sphere (on the left), flare subtracted from sphere (shell) (middle) and flare subtracted from sphere (solid) (to the right).