momepy.stroke_orthogonality¶

momepy.stroke_orthogonality(stroke_graph)[source]¶

Computes the stroke’s orthogonality. Orthogonality is defined as the average of the sine of the minimum angles between the stroke and the street segments it intersects:

\[O(s)=\frac{\sum_{i\in A}sin(\theta_i)}{C(s)}\]

Where \(\theta_i\) is the minimum angle between the street segment \(i\) and the stroke \(s\), and \(C(s)\) is the connectivity of the stroke \(s\).

Its value vary between 0 and 1, for low to right angles.

Adapted from [El Gouj et al., 2022].

Parameters:¶

stroke_graph : nx.Graph()¶

Stroke graph of a network, generated with momepy.coins_to_nx().

Returns:¶

stroke_graph – Returns stroke_graph where each node has acquired the additional attribute stroke_orthogonality; and the additional attribute stroke_connectivity (unless it has been present in the input graph).

Return type:¶

nx.Graph()

Examples

>>> stroke_graph = stroke_orthogonality(stroke_graph)