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Rules and Limitations When Moving, Rotating, and Scaling Subobjects
You can only move, rotate, and scale subobjects on 3D solids if the operation
maintains the integrity of the solid. The following rules and limitations apply
to moving, rotating, and scaling subobjects:
â– When you use grips to modify subobjects, grips are not displayed on the
subobjects that cannot be moved, rotated, or scaled.
â– In most cases, you can move, rotate, and scale both planar and non-planar
faces.
â– You can only modify an edge that is a straight line and that has at least
one planar adjacent face. The planes of the adjacent planar faces are
adjusted to contain the modified edge.
â– You cannot move, rotate, or scale edges (or their vertices) that are imprinted
inside faces.
â– You can only modify a vertex if it has at least one planar adjacent face.
The planes of the adjacent planar faces are adjusted to contain the modified
vertex.
â– When you drag a subobject, the final result might be different than the
preview displayed during the modification. This result occurs when the
solid geometry is adjusted in order to maintain its topology. In some cases,
the modification is not possible because it changes the topology of the
solid too severely.
â– If the modification causes spline surfaces to be extended, the operation is
often unsuccessful.
â– You cannot move, rotate, or scale non-manifold edges (edges that are
shared by more than two faces) or non-manifold vertices. Also, if some
non-manifold edges or vertices are present near faces, edges, and vertices
that you modify, the operation might not be possible.
See also:
Modify Mesh Objects (page 454)
Modify Faces on 3D Objects
Modify individual faces on 3D objects using a variety of methods.
Modify 3D Models | 425
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