geocore 0.8.0-a.7

Geospatial data (points, geometry, features, meta), projections and parsers (GeoJSON, WKT) for Dart.

0.8.0

(beta-release 0.8.0 currently under development at version 0.8.0-a.7)

⚠️ Breaking changes:

• Refactor Feature class inheritance and types of id and properties members #39
• Define more specific return type on newWith and newFrom methods of Point sub classes #41
• Populate results by default when intersecting with bounds on point and bounded series #42
• Define consistent mini library exports with base classes included #31
• Move temporal classes to "base" mini-library #69

🧩 Features:

• Add copyWith method to Point classes #43
• Initial support and abstractions for Coordinate transformations on core classes and reading datasource #15
• Test point equality in 2D or 3D by tolerance in Point class #47
• Check if point series is closed by tolerance #48
• Add CartesianPoint to the Point-class hierarchy #54
• Coordinate conversion between WGS84 (lon-lat) and Web Mercator projection (meters)
• Add simpler constructors on geometry classes expecting bounded or point series #59
• Add projection support provided by the proj4dart package #60
• Common base class or interface for temporal Instant and Interval classes #70

🛠 Refactoring:

• Refactor coordinate value members of immutable Point classes #44
• Elev and m coordinate values as default in some GeoPoint classes #45
• Rename point factories of Point classes #49

📚 Documentation:

• Readme documentation updates for 0.8.0 release #63
• Document coordinate ordering of Point class #64
• Update copyright clauses (years 2020-2022) and licenses #66

0.7.2

• Apply very_good_analysis 2.4.0+ lint rules #36
• Enhance methods of Point returning coordinate values as String #37
• Add fromText and toText serialization to Point classes #38

0.7.1

• BETA version 0.7.1
• Apply very_good_analysis 2.3.0+ lint rules #33
• WKT parser - add support for parsing GEOMETRYCOLLECTION #24

0.7.0

• BETA version 0.7.0 with minor breaking changes
• Use Map<String, Object?> instead of Map<String, dynamic> as properties
  • Factory: Feature.view()
  • Function typedef: CreateFeature
• updated dependency 0.7.1 on attributes
  • required changes visible in Feature class and GeoJSON factories
• Official Dart lint rules applied with recommend set #32

0.6.2

• BETA version 0.6.2 with documentation updates
• Documentation updates with explaining features, geometries and other classes #25
• Factory and other fixes on Bounds, GeometryCollection, Instant etc. #26

0.6.1

• BETA version 0.6.1 with partial support for Well-known text representation of geometry or WKT
• Also easier to use factories for points, line strings, polygons, etc.
  • Make geometries from arrays of num values.
  • Parse geometries from text with default implementation based on WKT.
    • Other text encodings can be implemented using custom parsers.
• Initial WKT support
• Easier constructor to make point and other geometry instances.
• Some other minor fixes.

0.6.0

• BETA version 0.6.0 with minor breaking changes
• Lint rules and analysis options updated
• Also implicit-casts and implicit-dynamic to false requiring code changes
• many other smaller changes and optimizations partially due issues #8

0.5.0

• BETA version 0.5.0 with stable null-safety requiring the stable Dart 2.12

0.5.0-nullsafety.0

• BETA version 0.5.0 with (relative small) breaking changes compared to 0.4.1
• Enhancing geospatial data factories, for example range filter
• Bounds and Point with new methods: writeValues and valuesAsString

0.4.1-nullsafety.0

• Alpha version 0.4.1 with minor feature changes compared to 0.4.0
  • may require migrations
  • Point interface has now x, y, z and m getters of type num, not double
  • However GeoPoint still has lon, lat, elev getters as double as previously
  • GeoJSON parser has breaking changes on point, bounds and feature factories
• Coordinate value getter properties as num on points #2
• Point and geometry factory interfaces and implementations #3
• Point factory constructor consistency #4
• Adapt factory changes to GeoJSON parser #5
• GeoJSON parser to allow extended Feature data #6
  • at least partial implementation, forward json object to factory function too
• BoundsBuilder as utility class #7

0.4.0-nullsafety.0

• Alpha version 0.4.0 with breaking changes compared to 0.3.0
• New dependency: attributes (^0.4.0-nullsafety.0) for common data structures
• Non-geospatial data structures moved to attributes
• Removed dependency: fixnum (1.0.0-nullsafety.0)
• Restructured lib/src folder:
  • base
  • crs
  • feature
  • geo
  • meta
    • extent
  • parse
    • factory
    • geojson
  • utils
    • geography
• Restructured mini-libraries provided by the package:
  • 'package:geocore/base.dart'
  • 'package:geocore/crs.dart'
  • 'package:geocore/feature.dart'
  • 'package:geocore/geo.dart'
  • 'package:geocore/meta_extent.dart'
  • 'package:geocore/parse_factory.dart'
  • 'package:geocore/parse_geojson.dart'
• Still the whole library is available by:
  • 'package:geocore/geocore.dart'
• Refactoring code in many places too

0.3.0-nullsafety.0

• Alpha version 0.3.0 with breaking changes compared to 0.2.0
• New dependency: fixnum (^1.0.0-nullsafety.0) for Int64 (Dart VM / JavaScript)
• New constructors on Point and GeoPoint for creating points from coordinates
• GeoPoint sub classes to support representing also M-coordinate
• New enumerated type: enum CRSType { geographic, projected, local }
• Empty geometry to map null geometries (ie. from GeoJSON) to such instance
• Multi geometry: MultiPoint, MultiLineString, MultiPoint, GeometryCollection
• Feature class changes: FeatureId, Feature, FeatureSeries, FeatureCollection
• Factory abstraction for creating geometries, features and feature collections
• Factory implementation for GeoJSON, initial version, not full coverage
  • FeatureCollection, Feature
  • Point, LineString, Polygon
  • MultiPoint, MultiLineString, MultiPoint
  • GeometryCollection
• Refactoring also some other constructors for consistent naming conventions
• Some tests added also to test parsing GeoJSON data

0.2.0-nullsafety.0

• Alpha version 0.2.0 with breaking changes compared to 0.1.0.
• More geometries: LineString (any line string or linear ring), Polygon
• Custom Iterable interface and sub implementation: Series, SeriesView
• Geometry series: GeometrySeries, PointSeries, LineStringSeries, PolygonSeries
• Features and collections: Feature, FeatureSeries

0.1.0-nullsafety.2

• Small fixes on README.md

0.1.0-nullsafety.1

• Small fixes on links of pubspec.yaml

0.1.0-nullsafety.0

• Initial pre-release version, the API of the library is not stable
• Designed for null-safety (requires sdk: '>=2.12.0-0 <3.0.0')
• Uses as dependency: Equatable (^2.0.0-nullsafety.0)
• Cartesian points using doubles: Point2, Point2m, Point3, Point3m
• Cartesian points using integers: Point2i, Point3i
• Geographical points using doubles: GeoPoint2, GeoPoint3
• Geographical camera: GeoCamera
• Geographical bounds: GeoBounds
• Coordinate reference systems: CRS class with two predefined identifiers
• Temporal coordinates: Instant, Interval
• Geospatial extent: Extent
• Web links: Link