3D inference constraints snap the pointer to inferred geometric relationships as you construct multipatch and 3D object feature geometry. They automatically appear as orange edge extensions with snap agent symbols when the pointer hovers near a snappable feature geometry.
3D inference constraints are described in the following table:
Global axis or line extension Snap to the global axis or line extension. |  |
Vertex Snap to the vertex of existing geometry. |  |
Intersection Snap to the inferred intersection. |  |
90 degree Constrain the new segment 90 degrees to the previous segment. |  |
Parallel Constrain a new segment parallel to existing geometry. |  |
Midpoint Snap to the midpoint of existing geometry. |  |