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CHANGES.md

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Highlights

changes with 0.10dev

  • breaking API cleanups
    • convert properties to methods, e.g. Geometry.bbox becomes Geometry.bbox(\*\*kwargs)
    • remove .get\_\* methods
    • remove multipart_from_singleparts and merge_multiparts methods, which are now handled by constructors

changes with 0.8

  • refactor GeoJSON support into external module, picogeojson
  • removed __setitem__ and __delitem__ methods from MultiVertex, as part of a move toward treating singlepart geometries as immutable
  • removed xyfile module
  • removed several custom Exception types
  • remove flat_distances_to(), and allow distances_to to take a crs kwarg instead
  • remove Point.coordsxy()
  • remove RegularGrid.coordmesh() and RegularGrid.center_coords()
  • remove warpedgrid
  • remove aliases gtiffread and aairead (these have been deprecated for ? versions now)
  • renames:
    • read_gtiff -> RegularGrid.from_geotiff
    • read_aai -> RegularGrid.from_aai
    • get_coordinate_lists -> aslists
    • get_vertices -> asarray
    • rotate2d -> rotate
  • remove deprecated _SphericalCRS and _EllipsoidalCRS
  • indexing a CompressedBand instance with a scalar now returns a row vector
  • new function merge_multiparts to combine multipart geometries
  • Multipart constructors are now more strict about what they will accept as data. Values for the data kwarg are now required to be Table or dict-like, the the length of individual dict values is checked

changes with 0.7.4

  • bugfixes backported from 0.8dev

changes with 0.7.3

  • bugfixes backported from 0.8dev

changes with 0.7.2

  • performance: convex hull calculation cythonized and extended for spherical coordinates
  • performance: planar length calculations are much faster (~700 x) and geodetic length calculations are somewhat faster (~1.8 x)
  • fix: CompressedBand now always returns array when indexed with a slice
  • fix: output dimension of grid sampling methods is now always one larger than the input
  • raster.merge now works with multiband grids
  • efficient algorithm for intersection detection in planar and spherical coordinates
  • new read_gtiffs function for reading multiple files as bands
  • implement experimental RegularGrid.coordinates() method returning a CoordGenerator object
  • implement get_coordinate_lists for Multiline and Multipolygon
  • other performance optimizations and fixes

changes with 0.7.1

  • better support multiband arrays for BandIndexer
  • fix to mask_poly function

changes with 0.7

  • major refactor of geometry hierarchy
    • adds Multiline and Multipolygon classes
    • polygon vertices are double-nested in order to represent sub-polygons
    • only multipart geometries now contain a data attribute
  • GeoJSON now attempts to project all data to geographical WGS84 coordinates as per https://datatracker.ietf.org/doc/draft-ietf-geojson/
    • force_wgs84=False can be set to avoid this behaviour
  • multivertex geometries now use CoordString as a data backend, which should permit faster operations on the C side
  • rename Line.subsection -> Line.to_npoints
  • new R-tree implementation in C
  • projected keyword argument added to Point.distance, Point.azimuth, and Point.walk to control whether geodetic or planar algorithms are used with the CRS is not geographical
  • replaced polygon membership testing algorithm with a winding number-based test
  • implemented fallback algorithm for polygon membership testing in polar regions

changes with 0.6

  • implement raster bands
  • redesign raster interface and introduce [:,:] array syntax rather than values attribute
  • replace pyshp with OGR
  • deprecate some CRS classes in favour of Proj4-backed CRS
  • nodata improvements for raster grids

changes with 0.5.3

  • R-tree implementation for indexing multipoint geometries
  • bounding box caching for performance

changes with 0.5

  • python implementation of geodetic solutions on spheres and ellipsoids
  • geodetically-correct area calculations with GeographicalCRS
  • more complete geojson interface supporting nested GeometryCollections
  • no longer supporting pure-Python mode (C-extensions required)
  • RegularGrid.clip performance improvements
  • added Multipoint.convex_hull(), returning a Polygon
  • CRS objects can often report WKT and proj.4 strings (mostly depends on osgeo)
  • continuing to improve CRS support in GeoJSON driver
  • automatic CRS support for shapefiles
  • Multipoint now uses quadtree internally for certain methods

Changes with 0.4

  • renamed vector.guppy -> vector.geometry
  • NODATA support for raster grids
  • raster grid clipping
  • gtiffread based on GDAL
  • refactor karta.crs with a simpler interface
  • affine transforms of vector geometries

Changes with 0.3

  • GeoJSONReader simplifications
  • implement __geo_interface__

Changes with 0.2 series

  • quadtrees for point data
  • implemented karta.crs to handle coordinate reference systems
  • shapefile IO improvements