cartagen.strokes_roads

strokes_roads(roads, attributes=None, angle=45.0, angle_sum=30.0)

Calculate strokes inside a road network.

This algorithm is based on the ‘Good Continuation’ principle as defined by Thomson & Richardson. [1] It defines strokes, which are segments that follow this perceptual grouping also known as Gestalt’s principle.

Parameters:

• roads (GeoDataFrame of LineString) – The roads to calculate the strokes from.

• attributes (list of str) – The list of attributes to help the derivation of continuity.

• angle (float, optional) – Thresholds for the maximum angle between two segments at the junction of two sections belonging to the same stroke.

• angle_sum (float, optional) – Thresholds for the maximum angle between two sections belonging to the same stroke.

Returns:

GeoDataFrame of LineString

See also

strokes_rivers

Calculate strokes inside a river network.

References

[1]

Robert C. Thomson and Dianne Richardson. The ‘ good continuation ’ principle of perceptual organization applied to the generalization of road networks. In Computer Science, Geography. 2002. URL: https://api.semanticscholar.org/CorpusID:16734527.

(Source code)