commit 5166a32ad306afc00a8993fb42b0e7bfe6a41fb5 Author: dawsch Date: Wed Oct 23 21:31:03 2024 +0200 commit inicjujący, plik main.py diff --git a/main.py b/main.py new file mode 100644 index 0000000..42ae358 --- /dev/null +++ b/main.py @@ -0,0 +1,69 @@ +import matplotlib.pyplot as plt +import numpy as np + +class Plot: + def __init__(self): + self.fig, self.ax = plt.subplots() + + self.cid_click = self.fig.canvas.mpl_connect('button_press_event', self.onclick) + self.cid_motion = self.fig.canvas.mpl_connect('motion_notify_event', self.on_mouse_move) + self.cid_release = self.fig.canvas.mpl_connect('button_release_event', self.on_release) + + plt.xlim(0, 800) + plt.ylim(0, 600) + plt.grid() + self.line = [] + self.controlPoints = [] + self.curvePoints = [] + self.isDrawing = False + self.inputMode = 0 + self.n = 15 + + def onclick(self, event): + if self.inputMode == 0: + self.isDrawing = True + if self.inputMode == 1 and len(self.controlPoints) < self.n: + self.controlPoints.append((event.xdata, event.ydata)) + self.drawPlot() + + def on_mouse_move(self, event): + if self.isDrawing: + self.line.append((event.xdata, event.ydata)) + self.drawPlot() + + def on_release(self, event): + if self.inputMode == 0: + self.isDrawing = False + self.inputMode = 1 + + def drawPlot(self): + self.ax.clear() + self.ax.plot(*zip(*self.line), color='red', label='linia') + if len(self.controlPoints) > 0: + self.ax.scatter(*zip(*self.controlPoints), color='black', label='Punkty kontrolne') + if len(self.controlPoints) >= self.n: + t_values = np.linspace(0, 1, num=100) + bezier_points = np.array([self.de_casteljau(t) for t in t_values]) + self.ax.plot(bezier_points[:, 0], bezier_points[:, 1], color='blue', label='Krzywa Béziera') + + self.ax.legend() + self.ax.set_xlim(0, 800) + self.ax.set_ylim(0, 600) + self.ax.grid() + plt.draw() + + def de_casteljau(self, t): + points = np.array(self.controlPoints) + n = len(points) + for r in range(1, n): + for i in range(n - r): + points[i] = (1 - t) * points[i] + t * points[i + 1] + return points[0] + + def run(self): + plt.show() + +if __name__ == "__main__": + plot = Plot() + plot.run() +