Animation Question - Changing Endpoint Programatically

06-29-2009 11:37 AM |

I have a question about changing an endpoint for an existing animation programatically.  I have a circle that does some animation (skew, resizing...etc) from it's current position to X,Y in a set amount of time.   Is there an easy way to set the destination X,Y?

 

I have been playing with using a DoubleAnimationUsingKeyFrames on the animation, but my end point never ends in the correct place (the end keyFrame, always the next to last key frame). 

Re: Animation Question - Changing Endpoint Programatically

07-02-2009 6:10 AM |

You can access DoubleAnimationKeyFrame for starting frame and the same for the ending frame.

You can get the DoubleAnimationKeyFrame for end frame as

DoubleAnimationKeyFrame endKeyFrameInstance=StoryboardObject.Children[StoryboardObject.Children.Count-1];

set end value as

endKeyFrameInstance.EndValue=someValue;

 

Regards,

Nirav

 

Re: Animation Question - Changing Endpoint Programatically

07-02-2009 6:21 PM |

 I've been doing something similar.  Not sure what a DoubleAnimationKeFrame is though.  My transform animation is a DoubleAnimationUsingKeyFrames with SplineDoubleKeyFrames within it.  The ending value is correct, but it's not animating to the correct spot, it's 1/2 the value it should be.

 

<Storyboard x:Name="animate">

     <DoubleAnimationUsingKeyFrames Storyboard.TargetName="puck" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)" BeginTime="00:00:00">
                <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0"/>
                <SplineDoubleKeyFrame KeyTime="00:00:00.5000000" Value="0"/>
                <SplineDoubleKeyFrame x:Name="endY" KeyTime="00:00:01" Value="0"/>
     </DoubleAnimationUsingKeyFrames>

</Storyboard>

 

Code:

DoubleAnimationUsingKeyFrames daukf2 = (DoubleAnimationUsingKeyFrames)animateUp.Children[3];
                    daukf2.KeyFrames[0].Value = startingYloc; // starting point
                    daukf2.KeyFrames[1].Value = halfY; // halfway point
                    daukf2.KeyFrames[2].Value = modYloc;  // Ending point

Re: Re: Animation Question - Changing Endpoint Programatically

07-05-2009 1:08 AM |

Here i have a full example with source talk about how to dymtic set up the endpoint for animation!

http://www.slblogger.cn/p66.htm