openalea.phenomenal.tracking.median_stem.z_to_xy

openalea.phenomenal.tracking.median_stem.z_to_xy(polyline, z)

For all the points (x’, y’, z’) in a polyline, this function returns the coordinates (x’, y’) whose corresponding z’ height is the closest to z.

Parameters:

• polyline (2D array) – a 3D polyline

• z (int) – z coordinate in 3D space

Returns:

(x’, y’) coordinates

Return type:

float