Added inlet waveform + saved times that will be available for ParaView

functions.py

@@ -9,6 +9,7 @@ import pandas as pd
 import tkinter as tk
 from statistics import mean 
 from scipy.signal import find_peaks
+import matplotlib.transforms as mtransforms
 
 
 def error_plot(folder,t_step,r_criteria,save):
@@ -118,6 +119,37 @@ def flow(folder,N_ts,T_cyc,dt,n_cyc):
     plt.show()
     return Q
     
+def inlet_flow_waveform(project_folder,t_btw_rst,N_ts,dt,T_cyc,n_cyc):
+    x = np.loadtxt(project_folder+'/ROI-1.flow')
+    t = x[:,0]
+    Q = -x[:,1]
+    Nt_pts = np.linspace(t_btw_rst,N_ts,int(N_ts/t_btw_rst))
+    t_pts = Nt_pts*dt
+    # Put all the time values on a single cardiac cylce            
+    for n in range(len(t_pts)):
+        tmp=divmod(t_pts[n],T_cyc)
+        t_pts[n]=tmp[1]
+        if round(tmp[1],3) ==  0:
+            t_pts[n]=T_cyc
+    # Interpolate the flow rate to obtain the location of the point
+    Q_pts = np.interp(t_pts, t, Q)
+
+    fig, ax = plt.subplots()
+    ax.plot(t, Q, 'r')
+    ax.plot(t_pts, Q_pts, 'ob')
+    trans_offset = mtransforms.offset_copy(ax.transData, fig=fig,
+                                       x=-0, y=0.15, units='inches')
+
+    ax.set(xlabel='Time [s]', ylabel='Flow Rate - Q [mL/s]',
+       title='Inlet Flow rate Waveform - 1 cycle')
+    ax.set_ylim([-10, 90])
+    ax.spines['right'].set_visible(False)
+    ax.spines['top'].set_visible(False)
+    # Adding label to the points
+    time = ['$t_1$', '$t_2$', '$t_3$', '$t_4$', '$t_5$', '$t_6$']
+    for x, y, t in zip(t_pts[(-n_cyc-1):], Q_pts[(-n_cyc-1):], time):
+        plt.text(x, y, t, transform=trans_offset, fontsize=12)        
+    plt.show()
             
         
         

main.py

@@ -13,7 +13,7 @@ from scipy import signal
 import statistics
 
 
-from functions import error_plot, periodicity, pressure, flow
+from functions import error_plot, periodicity, pressure, flow, inlet_flow_waveform
   
 # Selct dir 
 Tk().withdraw()
@@ -31,25 +31,25 @@ mylines = []                             # Declare an empty list named mylines.
 with open (project_folder + '/solver.inp', 'rt') as myfile: # Open lorem.txt for reading text data.
     for myline in myfile:                # For each line, stored as myline,
         mylines.append(myline)           # add its contents to mylines.
-# print(mylines)
-
-
 # Number of Timesteps - idx 3
 # Idea: remove the text to extract the number, the text part will be the same no matter the simulation
 N_ts = int(mylines[3][20:-1])
-
 # Time Step Size - idx 4
 dt = float(mylines[4][16:-1])
-
 # Residual criteria - idx 4
 rc = float(mylines[26][18:-1])
+# Imesteps between Restarts - idx 6
+t_btw_rst = int(mylines[6][37:-1])
 
 # Cehcking convergency and periodicity
 error_plot(folder,dt,rc,False)
 periodicity(project,folder,dt,T_cyc,n_cyc)
 
-# Pressure
+# Pressure - Outlets
 (DBP,MBP,SBP,PP) = pressure(folder,N_ts,T_cyc,dt,n_cyc)
  
-# Flow Rate
+# Flow Rate - Outlets
 (Q_avg) = flow(folder,N_ts,T_cyc,dt,n_cyc)
+
+# Inlet Flow Rate + and t saved
+inlet_flow_waveform(project_folder,t_btw_rst,N_ts,dt,T_cyc,n_cyc)