2012

ZNONDisables all 3D object snaps1
ZVERSnaps to a vertex or a control vertex2
ZMIDSnaps to the midpoint on a face edge4
ZCENSnaps to the center of a face8
ZKNOSnaps to a spline or surface knot16
ZPERSnaps to a perpendicular face (planar faces
only)
32
ZNEASnaps to an object nearest to a face64
Turns on all 3D object snaps126
To specify more than one object snap, enter the sum or their values. For
example, entering 6 specifies the vertex (2) and midpoint (4) object snaps.
Entering 126 turns on all 3D object snaps.
3DSELECTIONMODE
Controls the selection precedence of both visually and physically overlapping
objects when using 3D visual styles.
IntegerType:
RegistrySaved in:
1Initial value:
Use legacy 3D selection precedence.0
Use line-of-sight 3D selection precedence for selecting 3D solids
and surfaces. Also, a defining object associated with a surface is
given selection precedence with this setting.
1
3DSELECTIONMODE has no effect when selecting 3D solids if they are
displayed as 2D or 3D wireframes.
1166 | Chapter 4 System Variables