🎉 Part 1 of our #CircularArcs crowdfunding is fully funded – 112K CHF raised!
We’re very close to securing Part 2 too – just 13K CHF to go to bring full arc support into #QGIS!

⏳ We've extended the campaign until the end of July!
Join in 👉 https://buff.ly/lO4z17a

#GEOS #PostGIS @qgis

You can also explore #non-Euclidean space and here is the same action in #HyperbolicSpace (here in a #PoincaréDisc). #StraightLines are replaced by #GeodesicLines which look like #CircularArcs which intersect the #disc at #RightAngles. Circles are transformed to circles but their hyperbolic centres are not at their Euclidean centres.

Repeating the construction for Euclidean space, you can see that the parallel lines diverge.

#Mathematics #Geometry #NonEucldeanGeometry #FreeSoftware