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2008-02-08 Emmanuele Bassi <ebassi@openedhand.com>

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* clutter/clutter-behaviour-path.c: Add a paragraph describing
	the effects of different alpha functions on the path behaviour.
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Emmanuele Bassi 2008-02-08 14:34:58 +00:00
parent 9a05ab16e6
commit 3c307796a3
2 changed files with 16 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,8 @@
2008-02-08 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/clutter-behaviour-path.c: Add a paragraph describing
the effects of different alpha functions on the path behaviour.
2008-02-08 Emmanuele Bassi <ebassi@openedhand.com> 2008-02-08 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/clutter-actor.c: Reference the newly added event-flow.png * clutter/clutter-actor.c: Reference the newly added event-flow.png

11
clutter/clutter-behaviour-path.c
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@ -45,6 +45,17 @@
* <graphic fileref="path-alpha-func.png" format="PNG"/> * <graphic fileref="path-alpha-func.png" format="PNG"/>
* </figure> * </figure>
* *
* The actors position between the path's end points directly correlates
* to the #ClutterAlpha's current alpha value driving the behaviour. With
* the #ClutterAlpha's function set to %CLUTTER_ALPHA_RAMP_INC the actor
* will follow the path at a constant velocity, but when changing to
* %CLUTTER_ALPHA_SINE_INC the actor initially accelerates quickly before
* quickly decelerating.
*
* <note>If the alpha function is a periodic function, i.e. it returns to
* 0 after reaching %CLUTTER_ALPHA_MAX_ALPHA, then the actors will walk
* the path back to the starting #ClutterKnot.</note>
*
* #ClutterBehaviourPath is available since Clutter 0.2 * #ClutterBehaviourPath is available since Clutter 0.2
*/ */