Merge pull request #1602 from ablazejuk/patch-1

Validate that polygon has at least 3 vertices in geometry utils.py

supervision/geometry/utils.py

@@ -16,6 +16,9 @@ def get_polygon_center(polygon: np.ndarray) -> Point:
  Point: The center of the polygon, represented as a
  Point object with x and y attributes.
 
+ Raises:
+ ValueError: If the polygon has no vertices.
+
  Examples:
  ```python
  import numpy as np
@@ -30,6 +33,9 @@ def get_polygon_center(polygon: np.ndarray) -> Point:
  # This is one of the 3 candidate algorithms considered for centroid calculation.
  # For a more detailed discussion, see PR #1084 and commit eb33176
 
+ if len(polygon) == 0:
+ raise ValueError("Polygon must have at least one vertex.")
+
  shift_polygon = np.roll(polygon, -1, axis=0)
  signed_areas = np.cross(polygon, shift_polygon) / 2
  if signed_areas.sum() == 0: