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Thread: Simplest Detection of two lines intersecting -[RESOLVED]-

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  1. Apr 14th, 2004, 08:39 PM #1
    Electroman
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    Simplest Detection of two lines intersecting -[RESOLVED]-

    What would be the simplest way to detect if two lines are crossing. This would be only given four coordinates and that the first two join to make one of the lines and the second two form the other line.

    i.e.
    Line 1: (x1,y1) to (x2,y2)
    Line 2: (x3,y3) to (x4,y4)

    I have an idea but its coming up with loads of cases where I would need to make alterations to the formula.

    I just need to simplify it to be able to Say: If Case1 AND Case2 AND Case3 AND ... AND Case(n) Then Intersects.

    Thanx.
    Last edited by Electroman; Apr 14th, 2004 at 09:55 PM.
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