v1.37.12

LazySets v1.37.12

Diff since v1.37.11

Announcements

Contributors for this release:

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

Bug-fixes

• Use approximate equality check in samedir (#2387)

v1.37.11

LazySets v1.37.11

Diff since v1.37.10

Announcements

Contributors for this release:

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

Features

• Extend HPolyhedron constructor for symbolic variables, which now accepts equality constraints, e.g. HPolyhedron([x == 0, v <= 1], vars) (#2371)
• In-place scale for zonotopes (#2275)
• New function, read_gen, that reads polygon files in generic (GEN) file format from other tools (#2377)

Enhancements

• Fix type of hyperrectangle vertices (#2376)
• Faster vertices list of low order zonotopes (#2375)
• Improve hyperrectangular set -> zonotope conversion for static arrays

Internal changes

• Refactoring work (#2372)

v1.37.10

LazySets v1.37.10

Diff since v1.37.9

Announcements

Contributors for this release:

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

Features

• Add new line constructor in 2D (#2361)

v1.37.9

LazySets v1.37.9

Announcements

Contributors for this release:

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

Features

• Add Sutherland–Hodgman VPolygon intersection algorithm (#2345)

Enhancements

• Faster support function for zonotopic sets (#2343)
• constraints and vertices methods for Universe, EmptySet, AbstractSingleton (#2320)

Internal changes

• Robust membership test for line segment intersection (#2344)

---

Diff since v1.37.8

Closed issues:

• Add test for changing rtol (#1485)

Merged pull requests:

• #2264 - Specialized iterator methods constraints and vertices (#2320) (@schillic)
• Faster support function for zonotopic sets (#2343) (@mforets)
• Fix membership test for line segments (#2344) (@mforets)
• Add Sutherland–Hodgman VPolygon intersection algorithm (#2345) (@mforets)
• Update Project.toml (#2347) (@mforets)

v1.37.8

LazySets v1.37.8

Announcements

Contributors for this release:

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

Features

• Overapproximate the intersection of a zontope and a hyperplane using the projection method (#2338)

Enhancements

• Better diameter method for Interval (#2335)
• Better split method for Interval (#2335)

Bug-fixes

• Fix Hyperplane-Hyperplane disjointness check (#2328)
• Fix area for non-polygons (#2336)

Internal changes

• Fix problems with Cartesian Product Array algorithm for overapproximating with Zonotope (#2333)

---

Diff since v1.37.7

Closed issues:

• Area gives wrong result for non-polygons (#2305)
• Overapproximate zonotope-hyperplane intersection using the projection method (#2326)
• Hyperplane-Hyperplane intersection emptiness (#2327)

Merged pull requests:

• #2327 - Hyperplane-Hyperplane intersection emptiness (#2328) (@schillic)
• #2326 - Overapproximate zonotope-hyperplane intersection using the projection method (#2330) (@SebastianGuadalupe)
• Fix problems with Cartesian Product Array algorithm for overapproximating with Zonotope (#2333) (@SebastianGuadalupe)
• Better diameter and split methods for Interval (#2335) (@schillic)
• Fix area for non-polygons (#2336) (@mforets)
• Update Project.toml (#2339) (@mforets)

v1.37.7

LazySets v1.37.7

Announcements

Contributors for this release:

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

Features

• Overapproximate a polytope with a zonotope using Cartesian decomposition (#2298)

Enhancements

• Add HPolytope constructor for use with ModelingToolkit, and improvement of the vars argument handling (#2315)
• Improved zonotope-hyperplane disjointness check (#2317)

Internal changes

• Refactor zonotope vertex enumeration methods (#2303)

---

Diff since v1.37.6

Closed issues:

• Follow up of 2d zonotope vertex enum (#2208)
• Overapproximate a polytope with a zonotope using cartesian decomposition (#2277)

Merged pull requests:

• #2277 - Overapproximate a polytope with a zonotope using cartesian decomposition (#2298) (@SebastianGuadalupe)
• #2208 - Refactor zonotope vertex enumeration methods (#2303) (@mforets)
• Add HPolytope with MT + let macro work on tuples (#2315) (@mforets)
• Improve zonotope - hyperplane disjointness check (#2317) (@mforets)
• Fix global-variable issues in tests (#2318) (@schillic)
• Update Project.toml (#2323) (@mforets)

v1.37.6

LazySets v1.37.6

Announcements

Contributors for this release:

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

Features

• Overapproximation of the concrete quadratic map of a zonotope (#2218)

Enhancements

• Concrete projection of VPolytope returns a VPolytope (#2284)
• Better, consistent plotting of flat 2D sets (#2236)
• Convert cartesian products of zonotopic sets to a zonotope (#2300)

Bug-fixes

• Robust membership test for half-space (#2313)

Internal changes

• Extend _isapprox for matrices (#2295)
• Pass keyword argument to concrete affine map (#2281)

---

Diff since v1.37.5

Closed issues:

• Quadratic map of a zonotope (#912)
• Pass algorithm to concrete affine map (#2280)
• Add method for _isapprox with matrices (#2282)
• Concrete projection of a VPolytope (#2283)
• Incorrect intersection (not sure if due to underlying optimizer) (#2296)
• Convert CP and CPA of zonotopic sets to zonotope (#2299)
• Inconsistent membership check (#2312)

Merged pull requests:

• #912 - Quadratic map of a zonotope (#2218) (@SebastianGuadalupe)
• #237 - Better plotting of flat 2D set (#2236) (@schillic)
• #2280 - Pass kwarg to affine_map (#2281) (@mforets)
• #2283 - Add concrete projection of a VPolytope (#2284) (@SebastianGuadalupe)
• update vpolytope projection (#2287) (@mforets)
• #2282 - Extend isapprox for matrices (#2295) (@mforets)
• #2299 - Convert CP and CPA of zonotopic sets to zonotope (#2300) (@SebastianGuadalupe)
• Update Project.toml (#2309) (@mforets)
• Require v1.0 build again (#2311) (@schillic)
• #2312 - Fix robust membership test for HalfSpace (#2313) (@mforets)

v1.37.5

LazySets v1.37.5

Announcements

Contributors for this release:

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

Features

• Overapproximation of a zonotope with a parallelotope (#1628)

Enhancements

• Iteration protocol for OctDirections using a regular vector (#2268)

---

Diff since v1.37.4

Closed issues:

• Overapproximate a zonotope with a parallelotope (#1631)

Merged pull requests:

• #1631 - Overapproximation of a zonotope with a parallelotope (#1628) (@SebastianGuadalupe)
• Iteration protocol for OctDirections using a regular vector (#2268) (@mforets)
• Update Project.toml (#2285) (@mforets)

v1.37.4

LazySets v1.37.4

Announcements

Contributors for this release:

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

Features

• Polyhedron boundedness method using Stiemke's theorem of alternatives (#2110)
• Iterator versions constraints and vertices of constraints_list and vertices_list (#2263)
• Polyhedron constructor using symbolic variables through ModelingToolkit (#2270)
• Concrete in-place linear map of a zonotope (#2273)

Enhancements

---

Diff since v1.37.3

Closed issues:

• Implement iterator version of vertices_list (#53)
• Boundedness check for polyhedra using Stiemke's Theorem of alternatives (#1136)
• isbounded of empty polyhedron crashes (#1779)
• Inplace linear map for zonotopic sets (#2063)
• Concrete projection of a hyperrectangle should give a hyperrectangle (#2190)
• MT Polyhedron constructor (#2222)
• Error with new version of ModelingToolkit (#2223)

Merged pull requests:

• #1136 - Boundedness check for polyhedra using Stiemke's Theorem of alternatives (#2110) (@SebastianGuadalupe)
• #53 - Iterator versions of constraints_list and vertices_list (#2263) (@schillic)
• #2222 - Add HPolyhedron constructor using symbolic vars (#2270) (@mforets)
• #2190 - Concrete projection of hyperrectangular sets (#2272) (@mforets)
• #2063 - Add concrete in-place linear map for zonotope (#2273) (@mforets)
• Update Project.toml (#2279) (@mforets)

v1.37.3

LazySets v1.37.3

Announcements

Contributors for this release:

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

Features

• Implement HParallelotope set representation, a parallelotope in constraint form (#1632)
• Polyhedron boundedness method using Stiemke's theorem of alternatives (#2110)
• Iterator versions constraints and vertices of constraints_list and vertices_list (#2263)
• Polyhedron constructor using symbolic variables through ModelingToolkit (#2270)
• Concrete in-place linear map of a zonotope (#2273)

Enhancements

• Robust comparison for intersection of a lazy set with a half-space (#2257)
• Efficient subset check between CartesianProducts (#2241)
• Subset check between CartesianProductArrays with different block structure (#2241)
• Concrete linear map of a line returns a line (#2259)
• More efficient concrete projection of hyperrectangular sets, now returns a Hyperrectangle (#2272)

---

Diff since v1.37.2

Closed issues:

• Add parallelotope (#1014)
• Add meaningful test for linear_map (#1036)
• Efficient subset check between CartesianProducts (#1227)
• Robust comparison for intersection with a half-space (#2113)
• Problems with equation rendering in documentation (#2256)

Merged pull requests:

• #1014 - Add parallelotope in constraint form (#1632) (@SebastianGuadalupe)
• #1227 - Efficient subset check between CartesianProducts (#2241) (@schillic)
• Update README.md (#2255) (@mforets)
• #2113 - Robust comparison for intersection with a half-space (#2257) (@SebastianGuadalupe)
• #1036 - Add meaningful test for linear_map (#2258) (@SebastianGuadalupe)
• Concrete linear map of a Line (#2259) (@mforets)
• #2256 - Problems with equation rendering in documentation (#2260) (@schillic)