momepy.Squareness¶

class momepy.Squareness(gdf, verbose=True)[source]¶

Calculates squareness of each object in given GeoDataFrame.

Uses only external shape (shapely.geometry.exterior), courtyards are not included.

\[\mu=\frac{\sum_{i=1}^{N} d_{i}}{N}\]

where \(d\) is the deviation of angle of corner \(i\) from 90 degrees.

Adapted from [DPR+17].

Returns np.nan for MultiPolygons.

Parameters

gdfGeoDataFrame: GeoDataFrame containing objects
verbosebool (default True): if True, shows progress bars in loops and indication of steps

Examples

>>> buildings_df['squareness'] = momepy.Squareness(buildings_df).series
100%|██████████| 144/144 [00:01<00:00, 129.49it/s]
>>> buildings_df.squareness[0]
3.7075816043359864

Attributes

seriesSeries: Series containing resulting values
gdfGeoDataFrame: original GeoDataFrame

__init__(gdf, verbose=True)[source]¶: Initialize self. See help(type(self)) for accurate signature.

Methods

__init__(gdf[, verbose])

Initialize self.

momepy.SquareCompactness momepy.VolumeFacadeRatio