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Add ArcGIS API for Python Geometry Support to Weight Objects #331

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Add ArcGIS API for Python Geometry Support to Weight Objects #331

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4915055
- adds support for ArcGIS API for Python's Polygon and Polyline Geome…
achapkowski Jul 29, 2020
18e2158
- fix for failing test by adding check for `dict` type
achapkowski Jul 29, 2020
a2a3318
removed `r = ` from the tuple enforcement statement as per the request.
achapkowski Jul 30, 2020
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11 changes: 10 additions & 1 deletion libpysal/weights/_contW_lists.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,14 +17,23 @@ def _get_boundary_points(shape):
Recursively handle polygons vs. multipolygons to
extract the boundary point set from each.
"""
if shape.type.lower() == 'polygon':
if shape.type.lower() == "polygon" and \
isinstance(shape, dict) and \
'rings' in shape:
return _get_boundary_points(shape.boundary()) # returns a polyline (path)
elif shape.type.lower() == 'polygon':
shape = shape.boundary
return _get_boundary_points(shape)

elif shape.type.lower() == 'linestring':
return list(map(tuple, list(zip(*shape.coords.xy))))
elif shape.type.lower() == 'multilinestring':
return list(it.chain(*(list(zip(*shape.coords.xy))
for shape in shape)))
elif shape.type.lower() == 'polyline':
coords = []
[coords.extend([tuple(p) for p in path]) for path in shape['paths']]
return coords
elif shape.type.lower() == 'multipolygon':
return list(it.chain(*(_get_boundary_points(part.boundary)
for part in shape)))
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