This shows a Penrose diagram, which is a conformal compactification of 2D Minkowski space. The blue line is a geodetic line starting from the initial point with the chosen velocity.
The coordinate lines are the equally distant Cartesian coordinate lines from Minkowski space; the distance between them is 0.5 units. Note that the shape of the lightlike geodetics is not affected by the conformal map.
![[Snapshot]](HTMLImages/index.en/thumbnail_1.gif)
![[Snapshot]](HTMLImages/index.en/thumbnail_2.gif)
![[Snapshot]](HTMLImages/index.en/thumbnail_3.gif)
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