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Plotting in Python: Polar, Parametric Plot
Plotting in Python
Basic Plot and formatting
Subplot, Multiplot
Colormaps in Plots
Bar Plot
Pie Chart
Histogram
Quiver plot to show Vector Fields
Stream plot to Visualize Flow Data
Polar, Parametric Plot
Contour Plot
3D Plot
Density Plot
Animated Plot
Miscellaneous
Polar, Parametric Plot: Program 1
Simple Polar Plot
import numpy as np import matplotlib.pyplot as plt theta = np.linspace(0, 2*np.pi, 100) r = 1 + 0.5 * np.sin(3*theta) plt.polar(theta, r, color='blue', linewidth=2) plt.title('Simple Polar Plot') plt.savefig('plot.png')
Run Code
Output 1
Polar, Parametric Plot: Program 2
Polar Plot with Multiple Curves
import numpy as np import matplotlib.pyplot as plt theta = np.linspace(0, 2*np.pi, 100) r1 = 1 + 0.5 * np.sin(3*theta) r2 = 1 + 0.5 * np.cos(3*theta) plt.polar(theta, r1, label='sin(3?)', color='green') plt.polar(theta, r2, label='cos(3?)', color='red') plt.title('Polar Plot with Multiple Curves') plt.legend() plt.savefig('plot.png')
Run Code
Output 2
Polar, Parametric Plot: Program 3
Parametric Plot (Lissajous Curve)
import numpy as np import matplotlib.pyplot as plt t = np.linspace(0, 2*np.pi, 1000) x = np.sin(3*t + np.pi/2) y = np.sin(4*t) plt.plot(x, y, color='purple') plt.title('Parametric Plot (Lissajous Curve)') plt.xlabel('X-axis') plt.ylabel('Y-axis') plt.axis('equal') plt.savefig('plot.png')
Run Code
Output 3
Polar, Parametric Plot: Program 4
Parametric Plot (Epicycloid)
import numpy as np import matplotlib.pyplot as plt t = np.linspace(0, 2*np.pi, 1000) R = 5 r = 1 x = (R + r) * np.cos(t) - r * np.cos((R + r) * t / r) y = (R + r) * np.sin(t) - r * np.sin((R + r) * t / r) plt.plot(x, y, color='orange') plt.title('Parametric Plot (Epicycloid)') plt.xlabel('X-axis') plt.ylabel('Y-axis') plt.axis('equal') plt.savefig('plot.png')
Run Code
Output 4
Polar, Parametric Plot: Program 5
Polar Parametric Plot (Spiral)
import numpy as np import matplotlib.pyplot as plt theta = np.linspace(0, 4*np.pi, 500) r = theta plt.polar(theta, r, color='cyan', linewidth=2) plt.title('Polar Parametric Plot (Spiral)') plt.savefig('plot.png')
Run Code
Output 5