add utilities

Author: jonhealy1

stac_fastapi/elasticsearch/stac_fastapi/elasticsearch/utilities.py

@@ -0,0 +1,15 @@
+from typing import List
+
+def bbox2polygon(b0: float, b1: float, b2: float, b3: float) -> List[List[List[float]]]:
+    """Transform a bounding box represented by its four coordinates `b0`, `b1`, `b2`, and `b3` into a polygon.
+
+    Args:
+        b0 (float): The x-coordinate of the lower-left corner of the bounding box.
+        b1 (float): The y-coordinate of the lower-left corner of the bounding box.
+        b2 (float): The x-coordinate of the upper-right corner of the bounding box.
+        b3 (float): The y-coordinate of the upper-right corner of the bounding box.
+
+    Returns:
+        List[List[List[float]]]: A polygon represented as a list of lists of coordinates.
+    """
+    return [[[b0, b1], [b2, b1], [b2, b3], [b0, b3], [b0, b1]]]