0.8

• Compatibility with GHC 8.6
• Added (O(n\log n)) time closest pair algorithm.
• Added arrangement data type
• Various Bugfixes
• Added Camera data type with some world to screen transformations.
• Additional read/show instances
• Updated some of the show instances for Ipe related types.

0.7

• Compatibility with GHC 8.0-8.4
• Implemented more Algorithms and Data Structures. This includes
  • Polygon triangulation
• A new implementation of PlanarSubdivision that now also supports disconnected subdivsions.
• Performance improvements by changing to a different Vector implementation. For low dimensional vectors (of dimension at most four) we now essentially use the types from linear, this gives significant speedups on several small benchmarks.
• bugfixes.

0.6

• Implemented more Algorithms and Data Structures. This includes
  • Bentley-Ottmannn line-segment intersection,
  • Well-Separated Pair decompositions,
  • extremal point/tangents for Convex hulls,
  • Minkowski sum for convex polygons,
  • one dimensional segment trees,
  • one dimensional interval trees, and a
  • KD-tree.
• Several bug fixes, including a very stupid bug in Box
• Separate ConvexPolygon type.
• More thorough testing for some of the algorithms.
• Started work on a proper representation for planar subdivsions. This includes a representation of planar graphs that support querying if two vertices are connected by an edge in \(O(1)\) time.
• Dropped support for GHC 7.8

0.5

• Implemented several algorithms, including Delaunay Triangulation, EMST, and Douglas Peucker.
• Revamped the data types for Intersections

0.4

• Major rewrite from scratch, providing much stronger type-level guarantees. Incompatible with older versions.
• Convex Hull and Smallest enclosing disk algorithms.
• HGeometry now includes some very experimental and preliminary support for reading and writing Ipe7 files.

0.2 & 0.3

• Internal releases.

0.1.1

• Fixed a bug in point on n the line segment test
• Generalized the types of inCircle, inDisc, onCircle, onDisc etc. We now need only that the type representing precision model implements the typeclass Num instead of `Floating'.

0.1

• Initial release.