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VideoFullDomain.py
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# Author: Vatsal Sanjay
# vatsalsanjay@gmail.com
# Physics of Fluids
# Last updated: 19-Nov-2020
import numpy as np
import os
import subprocess as sp
import matplotlib
import matplotlib.pyplot as plt
from matplotlib.collections import LineCollection
from matplotlib.ticker import StrMethodFormatter
import sys
matplotlib.rcParams['font.family'] = 'serif'
matplotlib.rcParams['text.usetex'] = True
matplotlib.rcParams['text.latex.preamble'] = [r'']
def readingXc(filename):
fp = open(filename, "r")
temp1 = fp.read()
temp2 = temp1.split("\n")
tTemp, XcTemp, YcTemp, VcTemp = [], [], [], []
for n1 in range(len(temp2)):
temp3 = temp2[n1].split(" ")
if temp3 == ['']:
pass
else:
tTemp.append(float(temp3[0]))
XcTemp.append(float(0))
YcTemp.append(float(temp3[1]))
VcTemp.append(float(temp3[2]))
t = np.array(tTemp)
Xc = np.array(XcTemp)
Yc = np.array(YcTemp)
Vc = np.array(VcTemp)
return t, Xc, Yc, Vc
def gettingFacets(filename):
exe = ["./getFacet", filename]
p = sp.Popen(exe, stdout=sp.PIPE, stderr=sp.PIPE)
stdout, stderr = p.communicate()
temp1 = stderr.decode("utf-8")
temp2 = temp1.split("\n")
segs = []
skip = False
if (len(temp2) > 1e2):
for n1 in range(len(temp2)):
temp3 = temp2[n1].split(" ")
if temp3 == ['']:
skip = False
pass
else:
if not skip:
temp4 = temp2[n1+1].split(" ")
r1, z1 = np.array([float(temp3[1]), float(temp3[0])])
r2, z2 = np.array([float(temp4[1]), float(temp4[0])])
segs.append(((r1, z1),(r2,z2)))
segs.append(((r1, -z1),(r2,-z2)))
segs.append(((-r1, z1),(-r2,z2)))
segs.append(((-r1, -z1),(-r2,-z2)))
skip = True
return segs
def gettingfield(filename):
exe = ["./getData", filename, str(0), str(0), str(zmax), str(rmax), str(nr), str(Ohd), str(Ohs)]
p = sp.Popen(exe, stdout=sp.PIPE, stderr=sp.PIPE)
stdout, stderr = p.communicate()
temp1 = stderr.decode("utf-8")
temp2 = temp1.split("\n")
# print(temp2) #debugging
Rtemp, Ztemp, D2temp, veltemp = [],[],[],[]
for n1 in range(len(temp2)):
temp3 = temp2[n1].split(" ")
if temp3 == ['']:
pass
else:
Ztemp.append(float(temp3[0]))
Rtemp.append(float(temp3[1]))
D2temp.append(float(temp3[2]))
veltemp.append(float(temp3[3]))
R = np.asarray(Rtemp)
Z = np.asarray(Ztemp)
D2 = np.asarray(D2temp)
vel = np.asarray(veltemp)
nz = int(len(Z)/nr)
# print("nr is %d %d" % (nr, len(R))) # debugging
print("nz is %d" % nz)
R.resize((nz, nr))
Z.resize((nz, nr))
D2.resize((nz, nr))
vel.resize((nz, nr))
return R, Z, D2, vel, nz
# ----------------------------------------------------------------------------------------------------------------------
nGFS = 2750
Ldomain = float(sys.argv[1])
GridsPerR = int(sys.argv[2])
nr = int(GridsPerR*Ldomain)
We, Ohd = float(sys.argv[3]), float(sys.argv[4])
tsnap = float(sys.argv[5])
# tc = float(sys.argv[6])
Ohs = 1e-5
rmin, rmax, zmin, zmax = [-Ldomain/2, Ldomain/2, 0, Ldomain]
lw = 1
folder = 'VideoD2_v1' # output folder
if not os.path.isdir(folder):
os.makedirs(folder)
for ti in range(nGFS):
t = tsnap*ti
place = "intermediate/snapshot-%5.4f" % t
name = "%s/%8.8d.png" %(folder, int(t*1000))
if not os.path.exists(place):
print("%s File not found!" % place)
else:
if os.path.exists(name):
print("%s Image present!" % name)
else:
segs = gettingFacets(place)
if (len(segs) == 0):
print("Problem in the available file %s" % place)
else:
R, Z, D2, vel, nz = gettingfield(place)
zminp, zmaxp, rminp, rmaxp = Z.min(), Z.max(), R.min(), R.max()
# print(zminp, zmaxp, rminp, rmaxp)
# Part to plot
AxesLabel, TickLabel = [50, 20]
fig, ax = plt.subplots()
fig.set_size_inches(19.20, 10.80)
ax.plot([0, 0], [zmin, zmax],'-.',color='grey',linewidth=lw)
ax.plot([rmin, rmin], [zmin, zmax],'-',color='black',linewidth=lw)
ax.plot([rmin, rmax], [zmin, zmin],'-',color='black',linewidth=lw)
ax.plot([rmin, rmax], [zmax, zmax],'-',color='black',linewidth=lw)
ax.plot([rmax, rmax], [zmin, zmax],'-',color='black',linewidth=lw)
## Drawing Facets
line_segments = LineCollection(segs, linewidths=4, colors='green', linestyle='solid')
ax.add_collection(line_segments)
## D
cntrl1 = ax.imshow(D2, cmap="hot_r", interpolation='Bilinear', origin='lower', extent=[-rminp, -rmaxp, zminp, zmaxp], vmax = 0.5, vmin = -3.0)
## V
cntrl2 = ax.imshow(vel, interpolation='Bilinear', cmap="Blues", origin='lower', extent=[rminp, rmaxp, zminp, zmaxp], vmax = 1.0, vmin = 0.0)
ax.set_aspect('equal')
ax.set_xlim(rmin, rmax)
ax.set_ylim(zmin, zmax)
# t2 = t/tc
ax.set_title('$t/t_c$ = %4.3f' % t, fontsize=TickLabel)
# l, b, w, h = ax.get_position().bounds
# cb1 = fig.add_axes([l+0.05*w, b-0.05, 0.40*w, 0.03])
# c1 = plt.colorbar(cntrl1,cax=cb1,orientation='horizontal')
# c1.set_label('$\log_{10}\left(\epsilon_\eta\\right)$',fontsize=TickLabel, labelpad=5)
# c1.ax.tick_params(labelsize=TickLabel)
# c1.ax.xaxis.set_major_formatter(StrMethodFormatter('{x:,.1f}'))
# cb2 = fig.add_axes([l+0.55*w, b-0.05, 0.40*w, 0.03])
# c2 = plt.colorbar(cntrl2,cax=cb2,orientation='horizontal')
# c2.ax.tick_params(labelsize=TickLabel)
# c2.set_label('$V$',fontsize=TickLabel)
# c2.ax.xaxis.set_major_formatter(StrMethodFormatter('{x:,.2f}'))
ax.axis('off')
# plt.show()
plt.savefig(name, bbox_inches="tight")
plt.close()