wassname/geopandas
1
0
Fork 0
mirror of https://github.com/wassname/geopandas.git synced 2026-09-09 11:22:50 +08:00
Code Issues Packages Projects Releases Wiki Activity

Fix dissolve retains crs (#389)

Browse Source
This commit is contained in:
Tim Tröndle
2017-01-13 22:31:48 +01:00
committed by Joris Van den Bossche
parent 8333b951e8
commit 3d39798503
2 changed files with 13 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
geopandas/geodataframe.py
+1 -1
View File
@@ -486,7 +486,7 @@ class GeoDataFrame(GeoPandasBase, DataFrame):
g = self.groupby(by=by, group_keys=False)[self.geometry.name].agg(merge_geometries)
# Aggregate
aggregated_geometry = GeoDataFrame(g, geometry=self.geometry.name)
aggregated_geometry = GeoDataFrame(g, geometry=self.geometry.name, crs=self.crs)
# Recombine
aggregated = aggregated_geometry.join(aggregated_data)
geopandas/tests/test_dissolve.py
+12
View File
@@ -51,6 +51,18 @@ class TestDataFrame(unittest.TestCase):
self.assertTrue(test.geometry.name == 'myshapes')
self.assertTrue(test.geom_almost_equals(self.first).all())
@unittest.skipIf(str(pd.__version__) < LooseVersion('0.16'), pandas_0_15_problem)
def test_dissolve_retains_existing_crs(self):
assert self.polydf.crs is not None
test = self.polydf.dissolve('manhattan_bronx')
assert test.crs is not None
@unittest.skipIf(str(pd.__version__) < LooseVersion('0.16'), pandas_0_15_problem)
def test_dissolve_retains_nonexisting_crs(self):
self.polydf.crs = None
test = self.polydf.dissolve('manhattan_bronx')
assert test.crs is None
@unittest.skipIf(str(pd.__version__) < LooseVersion('0.16'), pandas_0_15_problem)
def test_first_dissolve(self):
test = self.polydf.dissolve('manhattan_bronx')