v1.37.2

LazySets v1.37.2

Announcements

Contributors for this release:

• Marcelo Forets (@mforets)
• Christian Schilling (@schillic)

Breaking changes

• Added type parameters for PolynomialZonotope (#2237)

Features

• Add concretize function (#2228)

Internal changes

• Add distance function from line to singleton (#2254)

---

Diff since v1.37.1

Closed issues:

• Add type parameters to set types for array containers (#481)
• Add type parameters for polynomial zonotope (#2117)
• Add concretize function (#2226)

Merged pull requests:

• #2226 - Add concretize function (#2228) (@schillic)
• #2117 - Add type parameters for polynomial zonotope (#2237) (@schillic)
• update distance (Line) (#2254) (@mforets)

v1.37.1

LazySets v1.37.1

Announcements

Contributors for this release:

• Marcelo Forets (@mforets)
• Sebastián Guadalupe (@SebastianGuadalupe)
• Christian Schilling (@schillic)

Features

• Add convex_hull of an array of polytopes (#2215)
• Create half-spaces and hyperplanes symbolically using ModelingToolkit (#2193)
• Add approximate function for Rectification of a polytope (#2233)
• Add Line, an n-dimensional line representation (#2210)
• Improve and extend zonotope splitting methods (#2214)

Enhancements

• Add rectify for Interval, Singleton, and ZeroSet (#2225, #2229, #2232)
• Generalize singleton_list to arbitrary sets with vertices_list function (#2242)
• Disjointness check with the empty set (#2235)

Internal changes

• Add ModelingToolkit as an optional dependency (#2193)
• Add StaticArrays as an optional dependency (#2214)

---

Diff since v1.37.0

Closed issues:

• Add explicit set operations for special set types (#324)
• Add dimension as type parameter (#372)
• Remove duplicate exports (#452)
• Higher dimensional line (#652)
• Investigate errors in binary functions (#861)
• Sampling from a set (#917)
• convex_hull of polytopes (#941)
• Decomposed intersection for CartesianProductArray (#1041)
• Add template directions alias symbols (#1329)
• Approximation of Rectification of polytope (#1435)
• Generalize singleton_list (#1659)
• Add better error message for conversion of non zonotopic set to zonotope (#1944)
• Move triangulation to new file (#2078)
• Rectangular linear_map from Zonotope given inverse matrix crashes (#2176)
• Disjointness check with the empty set (#2182)
• Add dimension of constrained reset map (#2198)
• Port zonotope splitting implementation from RA (#2213)

Merged pull requests:

• Add conversions from MT to Hyperplane and HalfSpace (#2193) (@mforets)
• Add Line (n-dimensional line) (#2210) (@mforets)
• #2213 - Port zonotope splitting implementation from RA (#2214) (@SebastianGuadalupe)
• #941 - Add convex_hull of an array of polytopes (#2215) (@SebastianGuadalupe)
• Specialized rectify for Interval (#2225) (@schillic)
• Specialized rectify for Singleton (#2229) (@schillic)
• Specialized rectify for ZeroSet (#2232) (@schillic)
• #1435 - Approximation of Rectification of polytope (#2233) (@schillic)
• Update Project.toml (#2234) (@mforets)
• #2182 - Disjointness check with the empty set (#2235) (@schillic)
• update custom css (#2240) (@mforets)
• #1659 - Generalize singleton_list (#2242) (@schillic)
• #2078 - Move triangulation to new file (#2243) (@schillic)
• Bump MT, simplify substitution (#2246) (@mforets)
• Rename Line.n to Line.d (#2249) (@schillic)
• Fix duplicate isdisjoint signature (#2250) (@schillic)
• Update Project.toml (#2253) (@mforets)

v1.37.0

LazySets v1.37.0

Announcements

Contributors for this release:

• Marcelo Forets (@mforets)
• Sebastián Guadalupe (@SebastianGuadalupe)
• Christian Schilling (@schillic)
• Peng Yu (@yupbank)

Breaking changes

• Rename Line to Line2D (#2206)

Features

• Add vertices list for (bounded) HPolyhedron (#2128)
• Vertices lists of lazy minkowski sum of zonotopic sets (#2212)

Enhancements

• Faster 2D zonotope vertex enumeration for the case when the generators are all in the first quadrant (or all in the third quadrant) (#2199)
• Faster inclusion check between zonotopic set and hyperrectangular set (#2205)
• Faster vertex enumeration of two dimensional zonotopes with positive generators (#2199)
• Add default solver to Polyhedra backend (#2195)

---

Diff since v1.36.3

v1.36.3

LazySets v1.36.3

Announcements

Contributors for this release:

• Marcelo Forets (@mforets)
• Sebastián Guadalupe (@SebastianGuadalupe)
• Christian Schilling (@schillic)

Features

• Function to normalize HalfSpaces and polyhedra in constraint representation (#2201)

Enhancements

• Bump GLPKMathProgInterface and Optim (#2189)
• Recursive overapproximation of ConvexHullArray of zonotopes with a Zonotope (#2185)
• Add floating-point tolerance to is_tighter_same_dir_2D (#2191)
• Always use constraint representation in linear_map_cartesian_product (#2194)
• Robust test for point-in-polyhedron using support functions (#2197)
• Return HPolytope in projection of polytope (#2196)

Bug-fixes

• Remove invalid assertion in conversion of Polyhedra.polyhedron to HPolyhedron (#2200)
• Fix disjointness check between a zonotope and a hyperplane if the zonotope has 0 generators (#2204)

---

Diff since v1.36.2

Closed issues:

• Function to normalize a polytope's directions (#1698)
• Use tolerance in membership test of Polyhedron (#2089)
• Compute the overapproximation of the convex hull array of zonotopes with a zonotope recursively (#2154)
• LazySets not loading (#2184)

Merged pull requests:

• #2154 - Compute the overapproximation of the convex hull array of zonotopes with a zonotope recursively (#2185) (@SebastianGuadalupe)
• Bump GLPKMathProgInterface and Optim (#2189) (@schillic)
• Add floating-point tolerance to is_tighter_same_dir_2D (#2191) (@schillic)
• Always use constraint representation in linear_map_cartesian_product (#2194) (@schillic)
• Return HPolytope in projection of polytope (#2196) (@schillic)
• #2089 - Use tolerance in membership test of Polyhedron (#2197) (@SebastianGuadalupe)
• Remove wrong assertion (#2200) (@schillic)
• #1698 - Function to normalize a polytope's directions (#2201) (@schillic)
• Allow emptiness check with zonotopes without generators (#2204) (@mforets)
• Update Project.toml (#2207) (@mforets)

v1.36.2

LazySets v1.36.2

Announcements

Contributors for this release:

• Marcelo Forets (@mforets)
• Daniel Freire Caporale (@dfcaporale)
• Sebastián Guadalupe (@SebastianGuadalupe)
• Christian Schilling (@schillic)

Features

• Approximate rectification for zonotopes (#2177)

Enhancements

• Add getter function set for obtaining the original set in a lazy Rectification (#2179)

Bug-fixes

• Fix assertion in linear_map_inverse (#2175)
• Add dimensional check in disjointness check with universal set (#2181)
• Fix method error for disjointness check involving a cartesian product array (#2181)

v1.36.1

LazySets v1.36.1

Diff since v1.36.0

Announcements

Contributors for this release:

• Marcelo Forets (@mforets)
• Christian Schilling (@schillic)

Features

• distance between two boxes (#2160)
• vertices_list for UnionSet, UnionSetArray, ConvexHull, and ConvexHullArray (#2163)
• (unexported) convenience function linear_map_inverse (#2171)

Enhancements

• Restore Polyhedra compatibility for chebyshev_center (#2161)
• Add missing AbstractCentrallySymmetric functions to AbstractCentrallySymmetricPolytope (#2159)
• Use center(P, i) method (#2164)
• Use SingleEntryVector in box overapproximation (note: this may degrade performance in some cases) (#2166)

Bug-fixes

• Fix variable name in error message (#2167)
• Use approximate zero test in samedir and fix isredundant (#2172)
• Fix rectangular linear_map from HPolygon (#2173)

v1.36.0

LazySets v1.36.0

Diff since v1.35.0

Announcements

Contributors for this release:

• Marcelo Forets (@mforets)
• Christian Schilling (@schillic)
• Ryan Birmingham (@birm)

Breaking changes

• Add type parameter for Ballp (#2131)

Features

• intersection between two line segments (#2138)
• Zonotope overapproximation of polytope given generator directions (#2081)

Enhancements

• generalized constraints_list of 1D zonotopes (#2146)
• bump GLPK (#2149)
• bump JuMP, Polyhedra, CDDLib (#2148)
• remove zero generators in Zonotope operations (project and vertices_list) (#2150)

Internal changes

• Make doctests independent of Julia version (#2151)
• Added Julia v1.4 to continuous integration (#2084)

v1.35.0

LazySets v1.35.0

Diff since v1.34.0

Announcements

Contributors for this release:

• Marcelo Forets (@mforets)
• Sebastian Guadalupe (@sebastianguadalupe)
• Christian Schilling (@schillic)
• Ryan Birmingham (@birm)

Breaking changes

• Hyperplanes have now two parameters, N for the numeric type and VN for the type of the normal vector Hyperplane{N, VN}.

Features

• Add center(X, i) to the centrally symmetric polytopes interface (#2100)
• Add convert of affine maps of zonotopes to a Zonotope (#2136)
• Add intersection between a line and a line segment (#2137)

Enhancements

• Add robust intersection check for intervals (#2119)
• Make is_right_turn robust (#2120)
• Concretely type split function for hyperrectangular sets (#2129)
• Add a new type parameter for Hyperplane (#2130)
• Improve intersection of 2D lines (#2123)
• Bump RecipesBase to v1.0 (#2140)

Bug-fixes

• Fix some linear map corner cases; those returning a universal set (#2107)
• Fix vertices_list for empty HPolygon (#2121)

v1.34.0

LazySets v1.34.0

Diff since v1.33.0

Announcements

Contributors for this release:

• Marcelo Forets (@mforets)
• Christian Schilling (@schillic)

Breaking changes

• Remove zero generators in zonotope constructor (#2072)

• Template directions now have a second parameter that corresponds to the vector type of the given representation, AbstractDirection{N, VN} (#2088)

Enhancements

• Allow linear maps with a scalar from the right (#2099)
• Various enhancements to template directions wrt versatility and documentation (#2088)

v1.33.0

LazySets v1.33.0

Diff since v1.32.1

Announcements

Contributors for this release:

• Marcelo Forets (@mforets)
• Christian Schilling (@schillic)

Breaking changes

• Add type parameters for LineSegment endpoints (#2073)

Features

• Add Delaunay triangulation through MiniQhull / Qhull as an optional dependency (#2075)