lagrangian.Path

class lagrangian.Path

Bases: lagrangian.core.Integration

Handles the movement of a particle using the Runge-Kutta method.

__init__(self: lagrangian.core.Path, start_time: lagrangian::DateTime, end_time: lagrangian::DateTime, delta_t: boost::posix_time::time_duration, field: lagrangian.core.Field) → None

Default constructor

Parameters

• start_time (datetime.datetime) – Start time of the integration

• end_time (datetime.datetime) – End date of the integration

• delta_t (datetime.timedelta) – Time interval

• field (lagrangian.Field) – Field to use for computing the velocity of a point.

Methods

Path.compute(self, it, x0, y0)	Calculate the new position of the particle
Path.fetch(self, date)	Perform the tasks before a new time step (eg load grids required)
Path.iterator(self)	Return an iterator that describes the integration period