cartagen.max_break

max_break(line, offset, exaggeration=1.0)

Spread a road bend and keep its shape.

This algorithm was proposed by Mustière. [1] [2] It first finds the side of the road bend and dilates the line on its exterior side.

Parameters:

• line (LineString) – The line to dilate.

• offset (float) – The distance to dilate.

• exaggeration (float, optional) – A multiplicator for the offset parameter.

Returns:

LineString

See also

coalescence_splitting

Splits a line into parts when coalescence is detected.

min_break

Spread a road bend and minimize its extent.

References

[1]

Sébastien Mustière. Apprentissage supervisé pour la généralisation cartographique. PhD thesis, Université Pierre et Marie Curie, Paris VI, 2001. Thèse de Doctorat de l’université Pierre et Marie Curie (Paris VI). URL: https://api.semanticscholar.org/CorpusID:172049177.

[2]

Sébastien Mustière and Cécile Duchêne. Comparison of different approaches to combine road generalisation algorithms: galbe, agent and cartolearn. In Computer Science, Engineering. 2001. URL: https://api.semanticscholar.org/CorpusID:211143953.

Examples

>>> line = LineString([(0, 0), (3, 3), (6, 0)])
>>> max_break(line, 1.0)
<LINESTRING (-0.707 0.707, 2.293 3.707, 2.426 3.819...)>

(Source code)