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Add E and L outputsfor hermite integrator

This commit is contained in:
Thibault Barnouin
2021-11-05 22:40:33 +01:00
parent 04a4dd6e6a
commit b2234afeca
3 changed files with 11 additions and 7 deletions

View File

@@ -6,7 +6,6 @@ Implementation of the various integrators for numerical integration.
Comes from the assumption that the problem is analytically defined in position-momentum (q-p) space for a given hamiltonian H.
"""
from os import system
import time
import numpy as np
from lib.plots import DynamicUpdate
@@ -74,7 +73,7 @@ def frogleap(duration, step, dyn_syst, recover_param=False, display=False):
d.on_running(q_array[0], q_array[1], q_array[2], step=j, label="step {0:d}/{1:d}".format(j,N))
else:
d.on_running(q_array[:,0], q_array[:,1], q_array[:,2], step=j, label="step {0:d}/{1:d}".format(j,N))
time.sleep(1e-5)
if display:
system("convert -delay 5 -loop 0 tmp/?????.png tmp/temp.gif && rm tmp/?????.png")
system("convert tmp/temp.gif -fuzz 30% -layers Optimize plots/dynsyst.gif && rm tmp/temp.gif")

View File

@@ -163,7 +163,7 @@ class System:
for body in self.bodylist:
body.p = body.v*body.m
def hermite(self, duration, dt, display=False):
def hermite(self, duration, dt, recover_param=False, display=False):
if display:
try:
system("mkdir tmp")
@@ -173,9 +173,14 @@ class System:
d.on_launch()
N = np.ceil(duration/dt).astype(int)
E = np.zeros(N)
L = np.zeros((N,3))
for j in range(N):
self.HPC(dt)
E[j] = self.Eval()
L[j] = self.Lval()
if display:
# display progression
q_array = self.get_positions()
@@ -183,7 +188,7 @@ class System:
d.on_running(q_array[0], q_array[1], q_array[2], step=j, label="step {0:d}/{1:d}".format(j,N))
else:
d.on_running(q_array[:,0], q_array[:,1], q_array[:,2], step=j, label="step {0:d}/{1:d}".format(j,N))
#time.sleep(1e-5)
return 1
if recover_param:
return E, L

View File

@@ -35,7 +35,7 @@ def main():
duration, step = 100*3e7, 1e4
E, L = frogleap(duration, step, dyn_syst, recover_param=True)#, display=True)
#dyn_syst.hermite(duration,step, display=True)
E, L = dyn_syst.hermite(duration,step, recover_param=True, display=True)
fig1 = plt.figure(figsize=(30,15))
ax1 = fig1.add_subplot(111)