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add geometry validation to Sampler #238

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add geometry validation to Sampler #238

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19 changes: 19 additions & 0 deletions map2loop/sampler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,15 @@ def sample(
Returns:
pandas.DataFrame: the sampled data points
"""
valid_geometry = (
shapely.geometry.point.Point,
shapely.geometry.multipoint.MultiPoint
)

all_valid_geometries = all(isinstance(geom, valid_geometry) for geom in spatial_data.geometry)
if not all_valid_geometries:
raise ValueError("Invalid geometry types found in spatial_data")

data = spatial_data.copy()
data["X"] = data.geometry.x
data["Y"] = data.geometry.y
Expand Down Expand Up @@ -149,6 +158,16 @@ def sample(
Returns:
pandas.DataFrame: the sampled data points
"""
valid_geometry = (
shapely.geometry.multipolygon.MultiPolygon,
shapely.geometry.polygon.Polygon,
shapely.geometry.multilinestring.MultiLineString,
shapely.geometry.linestring.LineString
)
all_valid_geometries = all(isinstance(geom, valid_geometry) for geom in spatial_data.geometry)
if not all_valid_geometries:
raise ValueError("Invalid geometry types found in spatial_data")

schema = {"ID": str, "X": float, "Y": float, "featureId": str}
df = pandas.DataFrame(columns=schema.keys()).astype(schema)
for _, row in spatial_data.iterrows():
Expand Down