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Classe « Path »

Méthode matplotlib.artist.Path.contains_point

Signature de la méthode contains_point

def contains_point(self, point, transform=None, radius=0.0) 

Description

help(Path.contains_point)

Return whether the area enclosed by the path contains the given point.

The path is always treated as closed; i.e. if the last code is not
`CLOSEPOLY` an implicit segment connecting the last vertex to the first
vertex is assumed.

Parameters
----------
point : (float, float)
    The point (x, y) to check.
transform : `~matplotlib.transforms.Transform`, optional
    If not ``None``, *point* will be compared to ``self`` transformed
    by *transform*; i.e. for a correct check, *transform* should
    transform the path into the coordinate system of *point*.
radius : float, default: 0
    Additional margin on the path in coordinates of *point*.
    The path is extended tangentially by *radius/2*; i.e. if you would
    draw the path with a linewidth of *radius*, all points on the line
    would still be considered to be contained in the area. Conversely,
    negative values shrink the area: Points on the imaginary line
    will be considered outside the area.

Returns
-------
bool

Notes
-----
The current algorithm has some limitations:

- The result is undefined for points exactly at the boundary
  (i.e. at the path shifted by *radius/2*).
- The result is undefined if there is no enclosed area, i.e. all
  vertices are on a straight line.
- If bounding lines start to cross each other due to *radius* shift,
  the result is not guaranteed to be correct.

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