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I Any graph is "drawable" on a 2D surface?

  1. Jun 13, 2016 #1
    Are there any theorems that say something formal about the fact that any graph is drawable on a 2D surface, and can be mapped to a 2D array of pixels if the pixels are infinitely small?
  2. jcsd
  3. Jun 13, 2016 #2


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    This looks trivial, and easy to prove yourself if you really want to. Assuming edges can cross each other, of course.
  4. Jun 13, 2016 #3


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    When you say that, it implies that there is some way to distinguish between edges that cross at a point which is not a vertex and edges that meet at a vertex. In general, there will be lines crossing with no vertex there.
  5. Jun 14, 2016 #4

    Stephen Tashi

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    Look at material about "planar graphs". Not all graphs are planar graphs.
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