Editing Openai/68f40a7c-717c-8000-8af6-a222789ef1d8 (section)

===== 1. Performance (Optional) For smoother interactivity, you can separate rotation from redrawing heavy objects (e.g. cube & spiral). Currently, setup_plot() rebuilds the entire 3D scene when resetting the view — consider caching static parts. =====
# Minor Zoom Fix Your scroll zoom reverses direction depending on system configuration. You might want to standardize: ``<code>python zoom_factor = 0.9 if event.step > 0 else 1.1 <syntaxhighlight>3. Add Perspective Ellipse to Update with Rotation Right now, the red dashed ellipse is calculated only when you reset the view. You could make it update live as you drag: </syntaxhighlight>python self.ax.lines.pop(-1)  # remove previous red ellipse perspective_ellipse = self.calculate_perspective_ellipse(self.elev) self.ax.plot3D(perspective_ellipse[:, 0], perspective_ellipse[:, 1], perspective_ellipse[:, 2],                 color='red', linewidth=2, linestyle='--', alpha=0.7) <syntaxhighlight>4. Visual Enhancement - Try increasing the cube edge transparency slightly for depth cues: </syntaxhighlight>python poly.set_edgecolor((0.3, 0.3, 0.3, 0.2)) </code>`` - Or add lighting via ax.plot_surface() if you later move to pyvista or plotly.
# Educational Extension - You could plot the cross-section view (project the spiral’s path onto XY, XZ planes) to show how the circle/ellipse transforms. - Add a slider for elevation angle (using matplotlib.widgets.Slider) so users can visually see how the circle squashes into the golden ellipse as they tilt the view.

Would you like me to modify your code to include a slider for elevation angle so users can dynamically see how the circle morphs into the golden ellipse?