correction of example

examples/16_network/pet_follow_particle.py

@@ -128,25 +128,19 @@ def update(frame):
 # ^^^^^^^^^^^^^^^^^^
 step = 1 / 60.0
 
-x, y = meshgrid(arange(24, 36, step), arange(31, 36, step))
-x0, y0 = x.reshape(-1), y.reshape(-1)
-# Pre-order to speed up
-_, i = group_obs(x0, y0, 1, 360)
-x0, y0 = x0[i], y0[i]
-
 t_start, t_end = n.period
 dt = 14
 
 shape = (n.obs.size, 2)
 # Forward run
 i_target_f, pct_target_f = -ones(shape, dtype="i4"), zeros(shape, dtype="i1")
 for t in range(t_start, t_end - dt):
-    particle_candidate(x0, y0, c, n, t, i_target_f, pct_target_f, n_days=dt)
+    particle_candidate(c, n, step, t, i_target_f, pct_target_f, n_days=dt)
 
 # Backward run
 i_target_b, pct_target_b = -ones(shape, dtype="i4"), zeros(shape, dtype="i1")
 for t in range(t_start + dt, t_end):
-    particle_candidate(x0, y0, c, n, t, i_target_b, pct_target_b, n_days=-dt)
+    particle_candidate(c, n, step, t, i_target_b, pct_target_b, n_days=-dt)
 
 # %%
 fig = plt.figure(figsize=(10, 10))

src/py_eddy_tracker/observations/groups.py

@@ -137,8 +137,6 @@ def create_particles(eddies, step):
 def particle_candidate(c, eddies, step_mesh, t_start, i_target, pct, **kwargs):
     """Select particles within eddies, advect them, return target observation and associated percentages
 
-    :param np.array(float) x: longitude of particles
-    :param np.array(float) y: latitude  of particles
     :param `~py_eddy_tracker.dataset.grid.GridCollection` c: GridCollection with speed for particles
     :param GroupEddiesObservations eddies: GroupEddiesObservations considered
     :param int t_start: julian day of the advection