Question

(This question could be better off on math, but im not sure)

https://i.stack.imgur.com/ujPJG.png

This is probably very simple but the way I’m thinking of doing it doesn’t seem very easy and there must be a simpler method.I’ve got an image and I want to find some points that fall on a line so in this example image below the starting point of my line is (39,75) and the ending point is (75,142) from there I want to find 5 points (or any number really 5 is just an example) that are all on that line.

Is there some equation I can use that will get me a certain amount of points given any start and end coordinates?

Answer 1

Yes. Your line segment can be described by this equation:

x = 39 + t * (75 - 39)
y = 75 + t * (142 - 75)

where, t can take on any value between 0 and 1.

So, to get random points on the line, just choose a random value for t (between 0 and 1), and calculate what x, y are.

The idea is, x is traveling from 39 to 75, while y is traveling from 75 to 142, and t represents the fraction of travel that has been completed.