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Lines, Line segments and vectors

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@anikolo wrote:

Hello guys, this is both a theoretical and a practical question:

In geometry, you have

  • Lines: “A line is a straight one-dimensional figure having no thickness and extending infinitely in both directions.”
  • Line segments: “the part of a line between two points A and B”
  • Vectors: “a quantity having direction as well as magnitude”

In Grasshopper, so far I’ve found line segments (called lines), vectors, but I haven’t found -mathematical- lines.
to give you a practical example, I am trying to find the intersection between two lines which in their turn are intersections between planes. The only way I have found so far is to extend them by an arbitrary amount on both ends so as to be sure they will meet.

Isn’t there an entity like the mathematical line that extends infinitely?
(both examples in the picture are the same components with the same input)

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