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| t = [0,0.04,0.08,0.12,0.16,0.2,0.24,0.28,0.32,0.36,0.4,0.44,0.48,0.52,0.56,0.6,0.64,0.68,0.72,0.76,0.8,0.84,0.88,0.92]
x = [2.386206897,2.593103448,2.8,3.020689655,3.213793103,3.434482759,3.64137931,3.820689655,4.027586207,4.234482759,4.427586207,4.634482759,4.84137931,5.034482759,5.24137931,5.434482759,5.627586207,5.820689655,6.027586207,6.220689655,6.427586207,6.606896552,6.813793103,7.020689655]
y = [2.910344828,3.144827586,3.365517241,3.55862069,3.737931034,3.903448276,4.055172414,4.193103448,4.303448276,4.4,4.496551724,4.565517241,4.620689655,4.662068966,4.689655172,4.703448276,4.675862069,4.662068966,4.634482759,4.579310345,4.510344828,4.44137931,4.331034483,4.234482759]
vx = []
vy = []
tModif = []
for i in range(1,len(t)-1) :
vx.append((x[i+1]-x[i-1])/0.08)
vy.append((y[i+1]-y[i-1])/0.08)
tModif.append(t[i])
# pyplot.annotate('', xy = (x[i]+vx[i-1]/20, y[i]+vy[i-1]/20), xytext = (x[i], y[i]), arrowprops = {'edgecolor': 'blue','width': 1, 'headwidth': 3})
for i in range(1,len(vx)-1) :
# pyplot.annotate('', xy = (x[i+1]+vx[i+1]/10, y[i+1]+vy[2]/10), xytext = (x[i+1], y[i+1]), arrowprops = {'edgecolor': 'blue','width': 1, 'headwidth': 3})
# pyplot.annotate('', xy = (x[i+1]+vx[i+1]/10-vx[i-1]/10, y[i+1]+vy[i+1]/10-vy[i-1]/10), xytext = (x[i+1]+vx[i+1]/10, y[i+1]+vy[i+1]/10), arrowprops = {'edgecolor': 'blue','width': 1, 'headwidth': 3})
pyplot.annotate('', xy = (x[i+1]+vx[i+1]/10-vx[i-1]/10, y[i+1]+vy[i+1]/10-vy[i-1]/10), xytext = (x[i+1], y[i+1]), arrowprops = {'edgecolor': 'green','width': 1, 'headwidth': 3})
pyplot.scatter(x, y, c = 'red', marker = '+')
pyplot.show() |
