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Allow using geopandas interface without using geometry column #464

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Mar 12, 2021
Merged

Allow using geopandas interface without using geometry column #464

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12 changes: 6 additions & 6 deletions geoviews/data/geopandas.py
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Original file line number Diff line number Diff line change
Expand Up @@ -106,7 +106,7 @@ def init(cls, eltype, data, kdims, vdims):
def validate(cls, dataset, vdims=True):
dim_types = 'key' if vdims else 'all'
geom_dims = cls.geom_dims(dataset)
if len(geom_dims) != 2:
if len(geom_dims) > 0 and len(geom_dims) != 2:
raise DataError('Expected %s instance to declare two key '
'dimensions corresponding to the geometry '
'coordinates but %d dimensions were found '
Expand Down Expand Up @@ -247,13 +247,13 @@ def geom_dims(cls, dataset):

@classmethod
def dimension_type(cls, dataset, dim):
col = cls.geo_column(dataset.data)
if len(dataset.data):
arr = geom_to_array(dataset.data[col].iloc[0])
geom_dims = cls.geom_dims(dataset)
if dim in geom_dims:
return float
elif len(dataset.data):
return type(dataset.data[dim.name].iloc[0])
else:
return float
ds = dataset.clone(arr, datatype=cls.subtypes, vdims=[])
return ds.interface.dimension_type(ds, dim)

@classmethod
def isscalar(cls, dataset, dim, per_geom=False):
Expand Down