Maya tutorials:Graph Editor

---

Make a animation of a ball bouncing twice.


Open the Graph Editor.
Window > Animation Editors > Graph Editor...


Select the Translate Y channel and press ｆ　(View > Frame Selection)

The tangent is Clamped in the default as shown in figure above.

---

Select the Transelate Y channel and change the Tangent Linear.
It will be as above.


You can also change the Tangent at a keyframe.

---

Select a keyframe and Keys > Breake Tangents

　
Select the Translate Tool in the Tool Box.



With mouse middle botton change the bars as above.

　 →　
The impression of animation changed.

---

Check View > Show Results
The extension of the curve appears.


Select Curves > Post Infinity > Cycle
The curve pattern will be repeated after the last keyframe.

Select Curves > Pre Infinity > Cycle
The curve pattern will be repeated before the first keyframe.


The curve before and after keyframes are changed.

The default setting of Curves > Post Infinity > and
Curves > Pre Infinity > is Constant.

Japanese article
Maya tutorials:Graph Editor