Animation
Automatic Animation
GeoGebra allows you to animate not only free numbers and/or angles at the same time, but also dependent points that are
constrained on an object (segment, line, function, curve, etc.). In order to be automatically animated, free numbers /
angles need to be shown as sliders in the 
Graphics View.
If you want to animate a free number or angle in GeoGebra, as well as a dependent point, you need to select Animation On in the Context Menu of that number, angle or point. In order to stop the animation, you need to un-check Animation On in the same context menu.
|
After animating a free number, a free angle or a dependent point, an animation button appears in the lower left corner
of the |
In the 
Properties
Dialog on tab Slider you can change the behavior of the animation:
On the one hand, you may control the Speed of the animation.
|
A speed of 1 means that the animation takes about 10 seconds to run once through the interval of the slider. |
On the other hand, you can decide how the animation cycle is repeated:
- ⇔ Oscillating
-
The animation cycle alternates between Decreasing and Increasing.
- ⇒ Increasing
-
The slider value is always increasing. After reaching the maximum value of the slider, it jumps back to the minimum value and continues the animation.
- ⇐ Decreasing
-
The slider value is always decreasing. After reaching the minimum value of the slider, it jumps back to the maximum value and continues the animation.
- ⇒ Increasing (Once)
-
The slider value is always increasing. After reaching the maximum value of the slider, it stops at this value and ends the animation.
|
while an automatic animation is activated, GeoGebra remains fully functional. This allows you to make changes to your construction while the animation is playing. |
Manual Animation
To manually change a number, angle or point position continuously, select the 
Move Tool. Then, click on a free number, angle or a dependent point
and press either the + or – key or the arrow keys on you keyboard. Keeping one of these keys pressed
allows you to produce manual animations.
If the point coordinates depend on a number t like in P = (2 t, t), the point will move along a straight line when t is changed continuously.
|
You can adjust the increment of the slider on tab Slider of the
|