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Changelog History
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  • v0.13.0 Changes

    2020-04-13

    • ✂ Removes the Line type. This was done in order to better align simplefeatures with the OGC Simple Feature Access specification, and allows 🚚 many edge cases in the code to be removed. Users previously using the Line type should use the LineString type instead.

    • ➕ Adds an explicit GeometryType type, which represents one of the 7 types of geometry (Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon, and GeometryCollection). The Type method now returns a GeometryType rather than a string.

  • v0.12.0 Changes

    2020-04-11

    • ✂ Removes redundant PostGIS reference implementation tests, improving CI speed.

    • Overhauls WKB and WKT interfaces. These now return []byte and string respectively, rather than writing to a supplied io.Writer.

    • ✂ Removes the IsValid method. If users want to know if a geometry is valid or not, they should check for an error when geometries are constructed.

    • Unexports the partially implemented Intersection method. It will be reexported once the feature is complete.

    • 🛠 Fixes a memory related bug in the github.com/peterstace/simplefeatures/geos package.

    • ➕ Adds a wrapper for the GEOS simplify function.

    • 📦 Simplifies the github.com/peterstace/simplefeatures/geos package by not exporting the 'handle' concept. The package now just exposes standalone functions.

  • v0.11.0 Changes

    2020-04-05

    • ➕ Adds a new package github.com/peterstace/simplefeatures/geos that wraps the GEOS library. The following functions are wrapped: Equals, Disjoint, Touches, Contains, Covers, Intersects, Within, CoveredBy, Crosses, Overlaps, Union, Intersection, and Buffer.

  • v0.10.1 Changes

    2020-03-24

    • ➕ Adds documentation comments to all exported symbols.

  • v0.10.0 Changes

    2020-03-20

    • ➕ Adds support to geometries for Z (3D) and M (Measure) values. This includes many breaking changes, primarily around geometry constructor functions.

  • v0.9.0 Changes

    2020-03-03

    🚀 Special thanks to Frank Sun and Peter Jones for contributing to this release.

    • 🛠 Fixes a bug in the intersects predicate between MultiLineString and MultiPolygon.

    • ✂ Removes the EmptySet type. The Point, LineString, and Polygon types can now represent empty geometries.

    • ➕ Adds the GeometryType method, which returns a string representation of the geometry type (e.g. returns "LineString" for the LineString geometries).

    • ➕ Adds support to store empty Point geometries within MultiPoint geometries.

    • Simplifies geometry constructor options by removing the DisableExpensiveValidations option.

    • ✂ Removes the Equals predicate (which was only implemented for a small proportion of geometry type pairs).

    • Modifies the TransformXY methods to return their own concrete geometry type.

  • v0.8.0 Changes

    2020-02-20

    🚀 Special thanks to Lachlan Patrick for contributing to this release.

    • ➕ Adds a Length implementation for the Geometry type.

    • Modifies the Boundary for concrete geometry types to return a concrete geometry type (rather than the generic Geometry type).

    • ✅ Modifies the Fuzz Tests to use batching.

    • 🛠 Fixes a bug in the IsSimple method for MultiLineString.

    • ➕ Adds Centroid implementations for all geometry types.

    • ➕ Adds a new suite of reference implementation tests using libgeos.

  • v0.7.0 Changes

    2020-01-24

    • 🛠 Fixes a deficiency where LineString would not retain coincident adjacent points.

    • ➕ Adds two new methods to LineString. NumLines gives the number of Line segments making up the LineString, and LineN allows access to those Line segments.

    • ⬇️ Reduces the memory required to store a LineString.

  • v0.6.0 Changes

    2020-01-21

    🚀 Special thanks to Lachlan Patrick for contributing to this release.

    • ➕ Adds Reverse methods, which reverses the order of each geometry's control points.

    • ➕ Adds SignedArea methods, which calculate the signed area of geometries. The signed area takes into consideration winding order, and produces either a negative or positive result for non-empty areal geometries.

  • v0.5.0 Changes

    2020-01-17

    • 🛠 Fixes a bug where polygons with nested rings would erroneously be reported as valid.

    • 🐎 Performance improvements have been made to Polygon and MultiPolygon validation. The algorithms used now have sub-quadratic time complexity, and memory allocations have been significantly reduced.