Changes

Version 0.4.1 (March 5, 2019)

Small bug-fix release for compatibility with the latest Fiona and PySAL releases:

Compatibility with Fiona 1.8: fix deprecation warning (#854).
Compatibility with PySAL 2.0: switched to mapclassify instead of PySAL as dependency for choropleth mapping with the scheme keyword (#872).
Fix for new overlay implementation in case the intersection is empty (#800).

Improvements:

Improved overlay function (better performance, several incorrect behaviours fixed) (#429)
Pass keywords to control legend behavior (legend_kwds) to plot (#434)
Add basic support for reading remote datasets in read_file (#531)
Pass kwargs for buffer operation on GeoSeries (#535)
Expose all geopy services as options in geocoding (#550)
Faster write speeds to GeoPackage (#605)
Permit read_file filtering with a bounding box from a GeoDataFrame (#613)
Set CRS on GeoDataFrame returned by read_postgis (#627)
Permit setting markersize for Point GeoSeries plots with column values (#633)
Started an example gallery (#463, #690, #717)
Support for plotting MultiPoints (#683)
Testing functionalty (e.g. assert_geodataframe_equal) is now publicly exposed (#707)
Add explode method to GeoDataFrame (similar to the GeoSeries method) (#671)
Set equal aspect on active axis on multi-axis figures (#718)
Pass array of values to column argument in plot (#770)

Bug fixes :

Improvements:

Improve plotting performance using matplotlib.collections (#267)
Improve default plotting appearance. The defaults now follow the new matplotlib defaults (#318, #502, #510)
Provide access to x/y coordinates as attributes for Point GeoSeries (#383)
Make the NYBB dataset available through geopandas.datasets (#384)
Enable sjoin on non-integer-index GeoDataFrames (#422)
Add cx indexer to GeoDataFrame (#482)
GeoDataFrame.from_features now also accepts a Feature Collection (#225, #507)
Use index label instead of integer id in output of iterfeatures and to_json (#421)
Return empty data frame rather than raising an error when performing a spatial join with non overlapping geodataframes (#335)

Bug fixes:

Compatibility with shapely 1.6.0 (#512)
Fix fiona.filter results when bbox is not None (#372)
Fix dissolve to retain CRS (#389)
Fix cx behavior when using index of 0 (#478)
Fix display of lower bin in legend label of choropleth plots using a PySAL scheme (#450)

Improvements:

Complete overhaul of the documentation
Addition of overlay to perform spatial overlays with polygons (#142)
Addition of sjoin to perform spatial joins (#115, #145, #188)
Addition of __geo_interface__ that returns a python data structure to represent the GeoSeries as a GeoJSON-like FeatureCollection (#116) and iterfeatures method (#178)
Addition of the explode (#146) and dissolve (#310, #311) methods.
Addition of the sindex attribute, a Spatial Index using the optional dependency rtree (libspatialindex) that can be used to speed up certain operations such as overlays (#140, #141).
Addition of the GeoSeries.cx coordinate indexer to slice a GeoSeries based on a bounding box of the coordinates (#55).
Improvements to plotting: ability to specify edge colors (#173), support for the vmin, vmax, figsize, linewidth keywords (#207), legends for chloropleth plots (#210), color points by specifying a colormap (#186) or a single color (#238).
Larger flexibility of to_crs, accepting both dicts and proj strings (#289)
Addition of embedded example data, accessible through geopandas.datasets.get_path.

API changes:

In the plot method, the axes keyword is renamed to ax for consistency with pandas, and the colormap keyword is renamed to cmap for consistency with matplotlib (#208, #228, #240).

Bug fixes: