Does anyone out there throw together rough tools to solve eccentric problems that drive you nuts?

I run into problems with point data occasionally and it's hard to find a solution for using the data, when I can only view the problem in messy code format.
This sometimes leaves me wondering if the function I'm writing is even working correctly or not.
 
The example below is a rough tool I made to visualize and edit the Array format of points I usually work with. Over time I have transformed, gutted, and replace its code for different tests I needed it for. (The insides are not pretty.)
Yep it looks like a drawing tool, just not intended for that. I've only added certain "drawing" features I needed to make it easy to visualize the data I'm working on.

Looking at my previous post I felt the isBehindLine function served it's purpose, but if I get a more complicated problem similar to a raycasting test with imaginary ray of arbitrary width I would need to know more information where a Point is relevant to a Segment.

The "whereAboutSegment" function will return a String this time, with more detailed info of the Point's where-a-abouts instead of just knowing if its behind a line.

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Yea yea, I know Battlestar Galactica is over, but today I thought of the "Daybreak part 1" episode of BSG.
Hera, a little girl has been kidnapped by the Cylons. As part of a desperate plan to save Hera, Admiral Adama draws a red line on the deck, and asks for those willing to risk their lives to save her, do so by crossing the line.

I had a similar problem also with my scripts. I wanted to simply know if a Point was behind a Line or not...

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