shoot.eddies.eddies2d.Ellipse

class shoot.eddies.eddies2d.Ellipse(lon, lat, a, b, angle, sign=0, fit=None)

Ellipse representation for eddy contours

Parameters:

• lon (float) – Center longitude in degrees.

• lat (float) – Center latitude in degrees.

• a (float) – Semi-major axis in kilometers.

• b (float) – Semi-minor axis in kilometers.

• angle (float) – Orientation angle in degrees.

• sign (int, default 0) – Rotation sign.

• fit (float, optional) – Fit error metric.

__init__(lon, lat, a, b, angle, sign=0, fit=None)

Methods

from_coords(lons, lats)	Create ellipse from coordinate arrays
plot([ax, color, npts])	Plot ellipse on map axes
reconstruct(elon, elat, a, b, angle)	Reconstruct ellipse from parameters
to_json()	Export ellipse parameters as JSON string

Attributes

color	Color for plotting based on eddy type
eddy_type	Eddy type based on rotation and hemisphere
sample	Sample points along ellipse perimeter