8

Restrict To YZ Plane 431
Note:
Constraints are set on a transform-by-
transform basis, so select the transform before you
select t he axis constraint. If you do not want the
constraints to change, turn on Customize menu >
Preferences > General tab > Reference Coordinate
System group > Constant.
The axis constraints are stored separately at
object and sub-object levels. If you set these
three controls one way while in sub-object mode
and another way while in objec t selection le vel,
when you return to sub-object mode, they’re
restored to the way they were previously set. For
example, if you’re using XY constraints at object
level, then switch to sub-object level and use Z
constraint, when you return to object level, XY
will be restored.
Snaps can conflict w ith Restrict To XY Plane. Go
to Customize menu > Grid And Snap Settings
> Options > Translation to find the Use Axis
Constraints check box. When this is off, Snaps
take precedence over axis constraints.
Restrict To YZ Plane
Axis Constraints toolbar > Restric t to YZ Plane (on Restrict
to Pl ane flyout)
Keyboard > F8 (cycles through plane constraints)
Restrict To YZ Plane lets you limit all
transformations (move, rotate, scale) to the YZ
axes (by default, parallel with the Left view).
You can als o select planar constraint by us ing
the
Transform gizmo (page 1–408) .Insteadof
clicking the tripod heads, choose the corner marks
that are part of the gizmo. You can c ycle through
constraints by selecting the other sets of corner
markstochoosethealternateplanes.
Whenyoumoveanobjectalongaplanethatis
head-on to your view, the object moves along the
single available axis shown in the view.
Note: Constraintsaresetonatransform-by-
transform basis, so select the transform before you
select the axis constraint. If you do not want t he
constraints to change, turn on Customize menu >
Preferences > General tab > Reference Coordinate
System group > Constant.
The axis constraints are stored separately at
object and sub-object levels. If you set these
three controls one way whi le in sub-object mode
and another wa y while in object selection level,
when you return to sub-object mode, they’re
restored to the way they were previously set. For
example, if you’re using XY constraints at object
level, then switch to sub-object level a nd use Z
constraint, w hen you return to object level, XY
will be restored.
Snaps can conflict with Restrict To YZ Plane. Go
to Customize menu > Grid And Snap Settings
> Options > Translation to find the Us e Axis
Constraints check box. When this is off, Snaps
take precedence over axis constraints.
Restrict To ZX Plane
Axis Constraints toolbar > Restrict to ZX Plane (on Restrict
to Plane flyout)
Keyboard > F8 (cycles through plane constraints)
Restrict To ZX Plane lets you limit all
transformations (Move, Rotate, and Scale) to the
ZX axes (by default, parallel with the Front view).
You can als o select planar constraint by using
the
Transform gizmo (page 1–408) . Instead of
clickingthetripodheads,choosethecornermarks
that are part of t he gizmo. You can cycle through
constraints by select ing the other sets of corner
marks to choose the alternate planes.
When you m ove an object a long a plane that is
head-on to your v iew, the object moves along the
singleavailableaxisshownintheview.