[1.0] Find out whether a marker is within a certain line?

[robhol]

Well, how would I do this? Anybody got an example for me?

[50p]

Within a certain line? Do you mean "on" the line? If so, you'd have to calculate the angle of that line and calculate the angle of line "starting at one of the ends of the line and ending at the place of marker" if the angle is the same it means the marker is on the line. Also, remember to check if the length between marker and "one of the ends of the line" is shorter or equal to the length of the line.

Here's what I mean:

if ( lineA >= lineB ) and ( angleA == angleB ) then 
    -- the marker is on the line 
else 
    -- it's not on the line 
end 

[Gamesnert]

I think he means between two lines. So for instance:

Line 1 starts on 0,0, is 50 units long, and has an angle of 23 degrees.

Line 2 starts on the same position, also 50 units long, and has an angle of 50 degrees.

The marker is somewhere in between.

Is there a way to see if the marker is in between those two lines? (just an example of what I think he means)

[robhol]

I suppose a more accurate term is if a line in 3D intersects with a marker, but it doesn't matter, I found another way to do it.