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.

Read the rest of this entry »

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...

Read the rest of this entry »

After writing a function to test intersections of a line to a polygon, another problem came up where I needed
to test an intersection of a line to a curve. I'm sure there is a library someone has wrote that could do this but there is some fun in figuring out puzzles.
There was a recent comment about curves and intersections so I decided to go ahead an post what I attempted.
I feel using a loop is expensive, but it's all I can think of doing for this, similar to the lineIntersectPoly function.