Understanding frames, keyframes and representing animation in the timeline.

Understanding frames and keyframes

In Flash documents divided lengths of time into frames. A document have frame rate in frames per second.(default 24 fps).

  • Frames define increments on the timeline (Figure 1)
  • A keyframe is a frame where a change occurs in the timeline.
  • A property keyframe is a frame in which you define a change to an object’s properties for an animation.
  • Flash can tween, or automatically fill in, the property values between the property keyframes in order to produce fluid animations.
  • A series of frames containing tweened animation is called a motion tween.
  • A tweened frame is any frame that is part of a tween.
  • A static frame is any frame that is not part of a tween.
  • A keyframe is indicated on the timeline with a solid black circle. The frame where a keyframe span ends has a small white rectangle.
  • A blank keyframe is indicated by an empty circle.

Representing animations in the timeline

  • A span of frames with a blue background indicates a motion tween .(Figure 2) .
  • A hollow dot in the first frame indicates that the target object of the motion tween has been removed. (Figure 3) .
  • A span of frames with a green background indicates an inverse kinematics (IK) pose layer (Figure 4).
  • A black dot at the beginning keyframe, with a black arrow and blue background, indicates a classic tween (Figure 5).
  • A dashed line indicates that a classic tween is broken or incomplete, such as when a final keyframe is missing (Figure 6 )
  • A black dot at the beginning keyframe with a black arrow and a light green background indicates a shape tween (Figure 7)
  • A black dot indicates a single keyframe containing content. Light gray frames after a single keyframe contain the same content with no changes. These frames have a vertical black line and a hollow rectangle at the last frame of the span (Figure 8).
  • A small “a” indicates that the frame is assigned a frame action in the Actions panel (Figure 9).
  • A red flag indicates that the frame contains a label (Figure 10).
  • A green double slash indicates that the frame contains a comment (Figure 11).
  • A gold anchor indicates that the frame is a named anchor (Figure 12)

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