Solved

creating an animated sine wave in flash

Posted on 2010-11-18
2
1,572 Views
Last Modified: 2012-05-10
I want to create an animated sine wave in flash where the spikes and valleys keep changing. Is it better to create a movie clip that goes across the stage or is it better to do this as a changing shape tween? Also, does anybody know of a good example of this where someone created this without action script?
0
Comment
Question by:BobHavertyComh
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 14

Accepted Solution

by:
tomaugerdotcom earned 500 total points
ID: 34173279
I've done exactly this for an audio simulator I created for a client. Like you, I wanted to take the easy way out and "fake" it, rather than actually have to figure out the math behind drawing a real-time sine wave.

My solution was simple: I grabbed an audio file and opened it up in a free audio editor like Audacity (http://audacity.sourceforge.net/). It shows a nice "wave" view of my audio file. I zoomed in to an interesting portion, where it looked more like a sine wave, and then exported the graphic (or took a screenshot - I can't remember which).

After that, the rest was trivial.

1. import the graphic into Flash
2. turn it into a Graphic symbol
3. throw it on a layer in flash (this image should be WAY wider than your SWF document width in order to work well)
4. on a layer above it, create a Mask, so you get a "window" to see a part of your sine wave in
5. now just create a motion tween where the sine wave moves from RIGHT to LEFT

things get a little trickier if you want it to go continuously. You have to do a little Photoshop magic to create a graphic that "loops" - in other words, it looks the same on its left edge as it does on its right edge.

Make sense?
0
 
LVL 9

Author Closing Comment

by:BobHavertyComh
ID: 34176209
OK, so use a larger motion tween that repeats rather than a shape tween. That's what i ended up doing before i saw your answer. I drew the curves and they came out ok, and then created a motion tween behind a mask, because it seemed to be too much of a hassle to have to reshape all of those point if I chose to do a shape tween instead. Thanks..
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Script to Delete registry entry based on Product name 6 178
watermark on the graphic 9 83
Flash ActionScript 6 63
Overlay video in another video? 6 30
This article describes a solution to a problem of subloading one movie into another when they have different SWF versions. Sometime back, I was working on an ActionScript project while I came across an interesting fact which I would like to share…
The last time I worked with Flash and Socket connections was in AS1. A recent project required flash connecting to a Socket, and sending receiving information - we figured it would be easy enough - we all know about the socket policy documents and c…
The goal of the tutorial is to teach the user how to how to record live broadcast.
Learn how to create interesting presentations by including videos to keep your audience engaged using Prezi. Select "Insert" from the top menu in your Prezi editor: Select "YouTube Video": Paste the video URL into the prompt: "Select "Insert":…

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question