jupytersketcher/doc/pub/tutorial/fig-tut/mpl_code_Spring.py

import matplotlib.pyplot as mpl
import matplotlib.transforms as transforms

mpl.ion()  # for interactive drawing
fig = mpl.figure()

ax = fig.gca()
xmin, xmax, ymin, ymax = 0.0, 14.0, -2.5, 7.5
ax.set_xlim(xmin, xmax)
ax.set_ylim(ymin, ymax)
ax.set_aspect('equal')



mpl.grid(True)

# line
x = [2.0, 2.0]
y = [0.0, 1.25]
[line] = ax.plot(x, y, 'b', linewidth=2, linestyle='solid')

# line
x = [2.0, 2.0]
y = [3.75, 5.0]
[line] = ax.plot(x, y, 'b', linewidth=2, linestyle='solid')

# sprial
x = [2.0,
 2.5,
 2.0,
 1.5,
 1.9999999999999998,
 2.5,
 2.0,
 1.5,
 1.9999999999999998,
 2.5,
 2.0000000000000004,
 1.5,
 1.9999999999999996,
 2.5,
 2.0000000000000004,
 1.5,
 1.9999999999999996,
 2.5,
 2.0000000000000004,
 1.5,
 1.9999999999999993,
 2.5,
 2.0000000000000027,
 1.5,
 1.9999999999999993,
 2.5,
 1.9999999999999991,
 1.5,
 1.9999999999999991,
 2.5,
 2.0000000000000027,
 1.5,
 1.9999999999999991,
 2.5,
 1.9999999999999993,
 1.5,
 1.999999999999999,
 2.5,
 2.000000000000003,
 1.5,
 1.9999999999999987,
 2.5,
 1.9999999999999996,
 1.5,
 1.9999999999999951]
y = [1.25,
 1.3068181818181819,
 1.3636363636363635,
 1.4204545454545454,
 1.4772727272727273,
 1.5340909090909092,
 1.5909090909090908,
 1.6477272727272727,
 1.7045454545454546,
 1.7613636363636362,
 1.8181818181818181,
 1.875,
 1.9318181818181817,
 1.9886363636363638,
 2.0454545454545454,
 2.1022727272727275,
 2.159090909090909,
 2.215909090909091,
 2.2727272727272725,
 2.3295454545454546,
 2.3863636363636362,
 2.4431818181818183,
 2.5,
 2.5568181818181817,
 2.6136363636363633,
 2.6704545454545454,
 2.7272727272727275,
 2.784090909090909,
 2.840909090909091,
 2.8977272727272725,
 2.9545454545454546,
 3.0113636363636362,
 3.0681818181818183,
 3.125,
 3.1818181818181817,
 3.2386363636363633,
 3.2954545454545454,
 3.352272727272727,
 3.409090909090909,
 3.465909090909091,
 3.5227272727272725,
 3.5795454545454546,
 3.6363636363636362,
 3.693181818181818,
 3.75]
[line] = ax.plot(x, y, 'b', linewidth=2, linestyle='solid')
ax.text(2, 5.5, 'Default Spring',
        horizontalalignment='center', fontsize=14)

# line
x = [8.0, 8.0]
y = [0.0, 0.8333333333333334]
[line] = ax.plot(x, y, 'b', linewidth=2, linestyle='solid')

# line
x = [8.0, 8.0]
y = [4.166666666666667, 5.0]
[line] = ax.plot(x, y, 'b', linewidth=2, linestyle='solid')

# sprial
x = [8.0,
 8.034878236872062,
 8.069586550480032,
 8.10395584540888,
 8.1378186779085,
 8.171010071662835,
 8.2033683215379,
 8.234735781392946,
 8.264959632116602,
 8.293892626146237,
 8.32139380484327,
 8.3473291852295,
 8.371572412738697,
 8.394005376803362,
 8.41451878627752,
 8.433012701892219,
 8.449397023149583,
 8.463591927283394,
 8.475528258147577,
 8.485147863137998,
 8.492403876506105,
 8.497260947684136,
 8.499695413509547,
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 8.485147863137998,
 8.475528258147577,
 8.463591927283394,
 8.449397023149583,
 8.433012701892219,
 8.41451878627752,
 8.394005376803362,
 8.371572412738697,
 8.3473291852295,
 8.32139380484327,
 8.293892626146237,
 8.264959632116602,
 8.234735781392946,
 8.2033683215379,
 8.171010071662835,
 8.1378186779085,
 8.10395584540888,
 8.069586550480032,
 8.034878236872062,
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 7.965121763127937,
 7.930413449519968,
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 7.862181322091501,
 7.828989928337165,
 7.7966316784621,
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 7.514852136862002,
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 7.828989928337165,
 7.862181322091501,
 7.89604415459112,
 7.930413449519967,
 7.965121763127938,
 8.0,
 8.034878236872062,
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 8.1378186779085,
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 7.652670814770501,
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 7.7966316784621,
 7.828989928337165,
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 7.965121763127938,
 8.0,
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 8.1378186779085,
 8.171010071662835,
 8.203368321537901,
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[line] = ax.plot(x, y, 'b', linewidth=2, linestyle='solid')
ax.annotate('bar_length', xy=[ 7.          0.41666667], xycoords='data',
            textcoords='data', xytext=(4.5, 1.3333333333333335),
            horizontalalignment='left',
            verticalalignment='top',
            fontsize=14,
            arrowprops=dict(arrowstyle='->',
                            facecolor='black',
                            linewidth=2,
                            shrinkA=5,
                            shrinkB=5))

# line
mpl.arrow(x=7, y=0.833333, dx=0, dy=-0.833333,
          facecolor='k', edgecolor='k',
          linestyle='solid',
          linewidth=1, head_width=0.1,
          length_includes_head=True,
          shape='full')
mpl.arrow(x=7, y=0, dx=0, dy=0.833333,
          facecolor='k', edgecolor='k',
          linestyle='solid',
          linewidth=1, head_width=0.1,
          length_includes_head=True,
          shape='full')
ax.annotate('bar_length', xy=[ 7.          4.58333333], xycoords='data',
            textcoords='data', xytext=(4.5, 5.5),
            horizontalalignment='left',
            verticalalignment='top',
            fontsize=14,
            arrowprops=dict(arrowstyle='->',
                            facecolor='black',
                            linewidth=2,
                            shrinkA=5,
                            shrinkB=5))

# line
mpl.arrow(x=7, y=5, dx=0, dy=-0.833333,
          facecolor='k', edgecolor='k',
          linestyle='solid',
          linewidth=1, head_width=0.1,
          length_includes_head=True,
          shape='full')
mpl.arrow(x=7, y=4.16667, dx=0, dy=0.833333,
          facecolor='k', edgecolor='k',
          linestyle='solid',
          linewidth=1, head_width=0.1,
          length_includes_head=True,
          shape='full')
ax.text(8, -1.51667, 'width',
        horizontalalignment='center', fontsize=14)

# line
mpl.arrow(x=7.5, y=-1.75, dx=1, dy=0,
          facecolor='k', edgecolor='k',
          linestyle='solid',
          linewidth=1, head_width=0.1,
          length_includes_head=True,
          shape='full')
mpl.arrow(x=8.5, y=-1.75, dx=-1, dy=0,
          facecolor='k', edgecolor='k',
          linestyle='solid',
          linewidth=1, head_width=0.1,
          length_includes_head=True,
          shape='full')
ax.annotate('start', xy=(8.0, 0), xycoords='data',
            textcoords='data', xytext=(7.25, -0.75),
            horizontalalignment='center',
            verticalalignment='top',
            fontsize=14,
            arrowprops=dict(arrowstyle='->',
                            facecolor='black',
                            linewidth=2,
                            shrinkA=5,
                            shrinkB=5))
ax.text(9.73333, 2.5, 'length',
        horizontalalignment='left', fontsize=14)

# line
mpl.arrow(x=9.5, y=5, dx=0, dy=-5,
          facecolor='k', edgecolor='k',
          linestyle='solid',
          linewidth=1, head_width=0.1,
          length_includes_head=True,
          shape='full')
mpl.arrow(x=9.5, y=0, dx=0, dy=5,
          facecolor='k', edgecolor='k',
          linestyle='solid',
          linewidth=1, head_width=0.1,
          length_includes_head=True,
          shape='full')
ax.annotate('num_windings', xy=(8.6, 2.5), xycoords='data',
            textcoords='data', xytext=(9.0, 5.5),
            horizontalalignment='center',
            verticalalignment='top',
            fontsize=14,
            arrowprops=dict(arrowstyle='->',
                            facecolor='black',
                            linewidth=2,
                            shrinkA=5,
                            shrinkB=5))
mpl.title("Spring")
mpl.draw()
mpl.savefig("tmp_Spring.png", dpi=None)
mpl.savefig("tmp_Spring.pdf")