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Multiple linear wipes expression needed

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Bojan Drobnjak
Multiple linear wipes expression needed
on May 7, 2014 at 6:38:22 pm

Hey guys,
what I am looking for is something like this:





(check the expression around 4:30 mark)

Guy in the video is using radial wipe with a circle, I am using linear wipe with a rectangle. I have 4 rectangles (which form a single bar, take a look at the picture down) with 4 linear wipes applied and a single null object with 4 slider controllers (controlling the transition completion for each linear wipe).

Here is the visual representation of the bar, I use it to display election results for 4 political groups, displaying the number of votes in percentages.



What I need is very similar to what the guy in the video did (unfortunately I am not that good at expressions and couldn't manage to figure it on my own). I want the second linear wipe to start at the point where the first one is finished. So if the first linear wipe ends at 47% completion I'd like the second one to start from that point, 3rd should start where the 2nd one finished and so on..

Thank you for your time, it is much appreciated!


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John Cuevas
Re: Multiple linear wipes expression needed
on May 7, 2014 at 8:12:03 pm

Before coming up with an expression to do what you need, is there a reason you can't take all 4 bars, lay them out in a precomp, then bring that precomp into your final composition and just use 1 linear wipe to reveal the bar?

Johnny Cuevas, Editor
Thinkck.com

"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.


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Bojan Drobnjak
Re: Multiple linear wipes expression needed
on May 7, 2014 at 8:48:02 pm

I'll need to have 10 of these, with the info changing constantly so it made sense to try out an expression to save time :)


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John Cuevas
Re: Multiple linear wipes expression needed
on May 8, 2014 at 1:36:06 am

Made a simple bar graph for you, that does what you need. The only issue, the text(which updates) will need to be repositioned for each chart. The chart uses a linear wipe as a reveal, like you asked, so it's trickier to automatically move the text to center of each box, though not impossible_it's something that I could probably work out later....though font sizes could be an issue when you get to really small numbers.

7467_bargraph.aep.zip

Johnny Cuevas, Editor
Thinkck.com

"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.


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John Cuevas
Re: Multiple linear wipes expression needed
on May 25, 2014 at 12:48:36 am

Glad I could help.

Johnny Cuevas, Editor
Thinkck.com

"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.


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Dave LaRonde
Re: Multiple linear wipes expression needed
on May 7, 2014 at 9:02:03 pm

Hmmmm... I wonder how much time you'd actually end up saving by using expressions. Even for ten bar graphs.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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