Research Article
Features from a Single Vector Pressure Stroke
| Number | Feature | Definition | Formula and value |
| 1 | | Rotation angle of | | 2 | | Azimuth angle of segment | | 3 | | Azimuth angle of | | 4 | | Azimuth angle of start | | 5 | | Azimuth angle of end | | 6 | | Rotation angle of segment | | 7 | | Included angle | |
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