Gumball

The Gumball command displays the gumball widget on a selected object facilitating move, scale, and rotate transformations around the gumball origin.

Steps

Click the Gumball pane in the status bar.

Object actions

Drag gumball arrows to Move the object.

Drag scale handles (squares) to Scale the object in one direction.

Drag arcs to Rotate the object.

Tap Alt after starting to drag to toggle copy mode.

Press and hold Shift during Scale to force 3-D scale.

Press and hold Ctrl during move, scale or rotate to Extrude a planar curve or surface.

Click a control handle to enter numeric value.

Gumball controls

Axis plane indicator

Free move origin

Menu ball

Move arrows

Move X

Move Y

Move Z

Rotation arcs

Rotate X

Rotate Y

Rotate Z

Scale handles

Scale X

Scale Y

Scale Z

Overview

Axis plane indicator (1)

Drag by the plane icons to constrain movement to that plane.

Gumball origin (2)

Drag the gumball origin to drag the whole object in any direction.

Menu ball "bunny tail" (3)

Click to change gumball settings.

Move arrows (4, 5, 6)

Click and drag a gumball x, y, or z-arrow control to move the objects in the arrow direction.

Rotation arcs (7, 8, 9)

Rotate the object on the gumball center.

Click to enter a specific number of degrees.

Scale handles(10, 11, 12)

Click and drag a gumball scale handle to scale in one dimension along the arrow axis.

Press and hold Shift to force a 3-D scale.

The origin is the gumball center.

Copy

Tap Alt while dragging any control to create a copy.

Specify a value

Click any control to specify a distance, angle, or scale factor.

Command-line options

Turns gumball widgets on for selected objects.

Off

Turns gumball widgets off.

Toggle

Toggles the on/off state of the gumball widgets.

Object actions

Move, rotate, or scale objects

Click and drag any gumball arrow, arc, or scale handle.

Copy during any operation

Click any gumball arrow, arc, or scale handle.

Start dragging the object.

Tap the Alt to toggle copy mode on.

Tap the Alt again to turn off copy mode.

Specify a distance, rotation angle, or scale factor

Click any gumball arrow, arc, or scale handle.

In the edit box, type a distance, rotation angle or scale factor that will be applied to the selected object.

Copy with numeric input

Press and hold Alt and click any gumball arrow, arc, or scale handle.

In the edit box, type a distance, rotation angle or scale factor that will be applied to a copy of the selected object.

Use distance and angle constraint

Normal Rhino distance and angle constraints can be used during a gumball operation.

Start dragging an object.

Type a number, and press Enter.

This number appears on the command line and is used to constrain a distance or angle of rotation.

Drag the object.

Distances are constrained along the axis arrow line.

Angles are constrained in increments of the angle around the rotation arc.

Extrude a curve or surface

Click and drag any gumball arrow on a planar curve or surface.

Press and hold Ctrl.

Release the mouse button.

To extrude a specific distance

Start dragging a planar curve or surface.

With the mouse button down, type a distance and press Enter.

This number appears on the command line and will constrain the distance.

Press and hold Ctrl and release the mouse button.

Gumball widget location and orientation

To move, rotate, or scale the gumball widget controls freely

Press and hold Ctrl and click and drag the gumball control to move, rotate, or scale the control freely.

To move rotate, or scale the gumball widget controls with numeric control

Press and hold Ctrl and click any gumball arrow, arc, or scale control.

In the edit box, type a distance, rotation angle or scale factor that will be applied to the gumball control.

Relocate Gumball

Press Ctrl and click the gumball widget (ignore the text field).

Release Ctrl and start dragging to relocate the gumball widget.

Status Bar options

To access the status bar menu

Right-click the Gumball pane in the status bar to access options.

Options

Gumball On

Turns the gumball widget on any time objects are selected.

Gumball Off

Disables auto gumball.

Align to CPlane

Gumball widgets align to the construction plane.

Align to Object

Gumball widgets align to the object direction for:

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Curves

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Extrusion objects

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Lights

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Mesh faces and edges and vertices

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Planar objects and sub-objects

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The camera object (Camera) and NamedView camera widget

Exceptions

Free-form top-level objects

The gumball aligns with the construction plane with its origin at the object's centroid.

Curve control points

The gumball z-direction (blue arrow) aligns with the curve normal.

The gumball x-direction (red arrow) aligns with the curve tangent.

Surface control points

The gumball z-direction (blue arrow) aligns with the surface normal.

The gumball x-direction (red arrow) aligns with the surface u-direction.

Align to World

Gumball widgets align to world xyz directions.

Snappy Dragging

Object snaps are used when dragging.

Smooth Dragging

Object snaps are ignored when dragging.

Rotate View Around Gumball

Rotate both the view camera and view target at the gumball origin when rotating the view.

Set Drag Strength

Sets the amount of the gumball drag as a percentage of mouse movement to control the speed of the gumball movement. The default 100% moves the gumball normally with the mouse.

To fine-tune placing objects (such as with control point editing) set the strength lower, so large hand/mouse movements result in smaller gumball changes.

Setting the strength to greater than 100% speeds up the gumball movement.

Settings

Opens Gumball Options.