Created
September 21, 2018 09:04
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prototype for interactive 3d volume visualization
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| import numpy as np | |
| import matplotlib.pyplot as plt | |
| class VolumeViz: | |
| def __init__(self, fig, volume): | |
| self.volume = volume | |
| self.figure = fig | |
| self.ax1 = fig.add_subplot(121) | |
| self.ax2 = fig.add_subplot(122) | |
| self.ax1.set_title('click') | |
| self.ax1.imshow(self.volume[:, :, 0]) | |
| self.cid = self.figure.canvas.mpl_connect('button_press_event', self) | |
| self.figure.canvas.draw() | |
| def __call__(self, event): | |
| if event.inaxes!=self.ax1: | |
| return | |
| print('%s click: button=%d, x=%d, y=%d, xdata=%f, ydata=%f' % | |
| ('double' if event.dblclick else 'single', event.button, | |
| event.x, event.y, event.xdata, event.ydata)) | |
| self.ax2.cla() | |
| self.ax2.plot(self.volume[np.round(event.xdata).astype('int'), np.round(event.ydata).astype('int'), :]) | |
| self.figure.canvas.draw() | |
| data = np.random.randn(300, 250, 200) | |
| fig = plt.figure() | |
| VolumeViz(fig, volume=data) | |
| plt.show() |
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