| vision: | |
| 1. Central Structure: Is there a dense, chaotic cluster of streamlines near the center of the volume, matching the ground truth? | |
| 2. Radial Extensions: Are there long, straight streamline tubes extending radially outward from the central region, similar to the ground truth? | |
| 3. Color Mapping: Are the tubes colored by vorticity magnitude using a blue-white-red diverging colormap, with warm colors concentrated near the center and cool colors on the extended lines? | |