import cubic spline 2d class

src/components/course/cubic_spline_course/cubic_spline_2d.py

@@ -19,3 +19,6 @@ class CubicSpline2D:
     def __init__(self, x_points, y_points):
         print(x_points)
         print(y_points)
+
+    def _calculate_distance_from_start(self, x_points, y_points):
+        pass

src/simulations/course/cubic_spline/cubic_spline_2d_plot.py

@@ -0,0 +1,39 @@
+"""
+cubic_spline_2d_plot.py
+
+Author: Shisato Yano
+"""
+
+# import path setting
+import numpy as np
+import sys
+import matplotlib.pyplot as plt
+from pathlib import Path
+
+abs_dir_path = str(Path(__file__).absolute().parent)
+relative_path = "/../../../components/"
+
+sys.path.append(abs_dir_path + relative_path + "course/cubic_spline_course")
+
+# import component module
+from cubic_spline_2d import CubicSpline2D
+
+
+# flag to show plot figure
+# when executed as unit test, this flag is set as false
+show_plot = True
+
+
+def main():
+    """
+    Main process function
+    """
+
+    x_points = [-2.5, 0.0, 2.5, 5.0, 7.5, 3.0, -1.0]
+    y_points = [0.7, -6, 5, 6.5, 0.0, 5.0, -2.0]
+
+    cs_2d = CubicSpline2D(x_points, y_points)
+
+
+if __name__ == "__main__":
+    main()