mirror of
https://github.com/NohamR/Stage-2023.git
synced 2025-05-24 00:49:03 +00:00
42 lines
1.5 KiB
Python
42 lines
1.5 KiB
Python
import csv
|
|
import matplotlib.pyplot as plt
|
|
|
|
# plusoumoins = 6
|
|
|
|
def opencsv(file):
|
|
with open(file, newline='') as csvfile:
|
|
return [row for row in csv.DictReader(csvfile, delimiter=';')]
|
|
|
|
data = opencsv('pt4only.txt')
|
|
|
|
def tester(plusoumoins):
|
|
for i in range (len(data)-plusoumoins):
|
|
|
|
##corection des points manquants
|
|
if i <plusoumoins:
|
|
vitesse = -(float(data[i+1]['distance']) - float(data[i-1]['distance'])) / (float(data[i+1]['temps']) - float(data[i-1]['temps']))
|
|
if vitesse>0.05 or vitesse<-0.05:
|
|
vitesse=0
|
|
else :
|
|
vitesse = -(float(data[i+plusoumoins]['distance']) - float(data[i-plusoumoins]['distance'])) / (float(data[i+plusoumoins]['temps']) - float(data[i-plusoumoins]['temps']))
|
|
print(f'vitesse {i}:', vitesse)
|
|
|
|
plt.figure(plusoumoins,figsize=[16,9])
|
|
plt.xlim([-1,476])
|
|
plt.ylim([-0.3, 1])
|
|
plt.xlabel("Numéro de l'image", fontsize = 16)
|
|
plt.ylabel("Vitesse (sans unité)", fontsize = 16)
|
|
plt.xticks([0,50,100,150,200,250,300,350,400,450,500],fontsize = 14)
|
|
# plt.yticks([-0.3,0,1], fontsize = 14)
|
|
plt.yticks([i/100 for i in range(-30, 100, 5)], fontsize = 14)
|
|
|
|
plt.plot([i],[vitesse], marker='o', linestyle='-', color='blue')
|
|
|
|
if i == 474-plusoumoins:
|
|
plt.savefig(f'vitesse/vitesse±{plusoumoins}.png')
|
|
plt.clf
|
|
|
|
# with open("vt-pt4only.txt", 'a', encoding='utf-8') as file:
|
|
# file.write('\n' + str(i) + ';' + str(vitesse))
|
|
|
|
tester(21) |