beautypg.com

Apply custom ease in/ease out to motion tweens – Adobe Flash Professional CS3 User Manual

Page 252

background image

FLASH CS3

User Guide

246

The group or symbol follows the motion path when you play the animation.

Link layers to a motion guide layer

Do one of the following:

Drag an existing layer below the motion guide layer. The layer is indented under the motion guide layer. All objects
on this layer automatically snap to the motion path.

Create a new layer under the motion guide layer. Objects you tween on this layer are automatically tweened along
the motion path.

Select a layer below a motion guide layer. Select Modify > Timeline > Layer Properties, and select Guide.

Unlink layers from a motion guide layer

Select the layer to unlink and do one of the following:

Drag the layer above the motion guide layer.

Select Modify > Timeline > Layer Properties, and select Normal as the layer type.

Apply custom ease in/ease out to motion tweens

The Custom Ease In/Ease Out dialog box displays a graph representing the degree of motion over time. The
horizontal axis represents frames, and the vertical axis represents percentage of change. The first keyframe is repre-
sented as 0%, and the last keyframe is represented as 100%.

The slope of the graph’s curve represents the rate of change of the object. When the curve is horizontal (no slope),
the velocity is zero; when the curve is vertical, an instantaneous rate of change occurs.

Custom Ease In/Ease Out graph showing constant velocity

Additional controls for the Custom Ease In/Ease Out dialog box

Use One Setting For All Properties check box

The default is selected; the displayed curve is used for all properties,

and the Properties pop-up menu is disabled. When the check box is not selected, the Properties pop-up menu is
enabled, and each property has a separate curve defining the velocity of that property.