Changelog

Source: NEWS.md

s2 1.0.7 Unreleased

• Update the internal copy of s2geometry to use updated Abseil, fixing a compiler warning on gcc-11 (#79, #134).

s2 1.0.6 2021-06-17

• Added support for STRICT_R_HEADERS (@eddelbuettel, #118).
• Fixed a bug where the result of s2_centroid_agg() did not behave like a normal point in distance calculations (#119, #121).
• Fixed a Windows UCRT check failure and updated openssl linking (@jeroen, #122).

s2 1.0.5 2021-06-01

• Added s2_projection_filter() and s2_unprojection_filter() to expose the S2 edge tessellator, which can be used to make Cartesian or great circle assumptions of line segments explicit by adding points where necessary (#115).
• Added an s2_cell() vector class to expose a subset of the S2 indexing system to R users (#85, #114).
• Added s2_closest_edges() to make k-nearest neighbours calculation possible on the sphere (#111, #112).
• Added s2_interpolate(), s2_interpolate_normalized(), s2_project(), and s2_project_normalized() to provide linear referencing support on the sphere (#96, #110).
• Fixed import of empty points from WKB (#109).
• Added argument dimensions to s2_options() to constrain the output dimensions of a boolean or rebuild operation (#105, #104, #110).
• Added s2_is_valid() and s2_is_valid_detail() to help find invalid spherical geometries when importing data into S2 (#100).
• Improved error messages when importing and processing data such that errors can be debugged more readily (#100, #98).
• The unary version of s2_union() can now handle MULTIPOLYGON geometries with overlapping rings in addition to other invalid polygons. s2_union() can now sanitize almost any input to be valid spherical geometry with minimal modification (#100, #99).
• Renamed the existing implementation of s2_union_agg() to s2_coverage_union_agg() to make clear that the function only works when the individual geometries do not have overlapping interiors. s2_union_agg() was replaced with a true aggregate union that can handle unions of most geometries (#100, #97).
• Added s2_rebuild_agg() to match s2_union_agg(). Like s2_rebuild(), s2_rebuild_agg() collects the edges in the input and builds them into a feature, optionally snapping or simplifying vertices in the process (#100).

s2 1.0.4 2021-01-05

• Fixed errors that resulted from compilation on clang 12.2 (#88, #89).

s2 1.0.3 2020-10-14

• Fixed CRAN check errors (#80).

s2 1.0.2 2020-08-03

• Fixed CRAN check errors (#71, #75, #72).

s2 1.0.1 2020-07-13

• Added layer creation options to s2_options(), which now uses strings rather than numeric codes to specify boolean operation options, geography construction options, and builder options (#70).
• Added s2_rebuild() and s2_simplify(), which wrap the S2 C++ S2Builder class to provide simplification and fixing of invalid geographies (#70).
• The s2 package now builds and passes the CMD check on Solaris (#66, #67).
• Renamed s2_latlng() to s2_lnglat() to keep axis order consistent throughout the package (#69).
• Added s2_bounds_cap() and s2_bounds_rect() to compute bounding areas using geographic coordinates (@edzer, #63).
• s2_*_matrix() predicates now efficiently use indexing to compute the results of many predicate comparisons (#61).

s2 1.0.0 2020-06-27

This version is a complete rewrite of the former s2 CRAN package, entirely backwards incompatible with previous versions.