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Create default line (x-axis).
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Construct a line from p with direction dir. Asserts unit length of dir. |
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Construct a line through two points.
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Result is > 0, = 0, < 0 if point lies to the left, on, to the right.
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Return a normal vector pointing to the left of the directed line.
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Returns distance between line and v.
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Does this line intersect line? If so, computes intersection point.
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Orthogonally project point v onto the line.
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Return direction of line.
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Point on the line.
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