See it in action
The trick in this little application is to store each mouse position, locate the mouse position and find the closest points around it (from the stored data) and draw some lines between those points. Well that code isn’t very exiting, because most people know how to find the distance between 2 points, and basically there are 2 ways find this:
// option 1: Using the build-in function
var distance:Number = Point.distance( point1, point2 );
// option 2: Using Math
var distance:Number = Math.sqrt( point1.x * point2.x + point1.y * point2.y );The results are amazing and I love the fact that even if you can’t draw, it looks really cool 🙂
Store lines as small as you can
I was already trying to find a way to store lines in a format I can reuse for my artworks. Most artworks are random but I am looking for a way to have more control. The first step would be the ability to control the (what I call) movements. So in this little experiment I’ve tried to find a way to store the lines into a compact file, which can be redrawed by the app. I’m really exited about this. So I’ve started to save as a plain-text file writing something like this:
It’s readable code, and easy to These are 56 chars for 4 points. So I tried to make it more smaller using this:
I’ve removed the x and y from the file, because I know that it’s always a pair of x and y values. Alright.. now I have 40 chars which represents 4 points, so that saves me 16 chars. Can this be done more smaller?
Yes, sometimes basic is the best. I removed the brackets. I know the odds are the x values, and the evens are the y values. It’s always x,y,x,y,x,y,x,y etc. So now I have 32 chars to store 4 points.
The application doesn’t know where I start pressing and releasing the mousebuttons. I have to know this, otherwise all my lines are just 1 big line instead of multiple lines. When pressing the mouse, I want to start with an graphics.moveTo function.
So what I did is this:
&m=0,2 means I have released the mouse on point 0 and point 2. A point referrers to the x and y position.
I think this is almost the smallest I can get. It’s easily to revert these values back to usable values using String.split().
But.. In real life there aren’t ints, but Numbers. The values mostly looks like 452.12070158. I stripped the value, and only use decimals. You don’t actually see the difference when redrawing between 10.04 and 10.042. This saves me a lot of chars too.
When saving the file, I push the data into a ByteArray using the bytes.writeUTFBytes() function. I realized ByteArrays can be compressed, so I also use the bytes.compress(); to make the file smaller again. This saves me about 50%! When importing the lines, I used bytes.uncompress(); to make it a normal string again.
Well this is a next step and I hope to create one day an editor for simple lines and merge this into my artwork process. I think it needs to be more complex but for now this will work. I hope you like it.