added foc quat to get

src/thd_json/projection/__init__.py

@@ -49,6 +49,7 @@ def get_projection_dict(
     image_dimensions_px: np.ndarray,
     pixel_pitch_mm: np.ndarray,
     header: JsonHeader | None = None,
+    focal_spot_orientation_quat: np.ndarray | None = None
 ):
     if header is None:
         header = generate_header()
@@ -59,6 +60,7 @@ def get_projection_dict(
         detector_center_position_mm,
         detector_center_orientation_quat,
         header,
+        focal_spot_orientation_quat
     )
 
     projection['detector'] = get_detector_dict(image_dimensions_px, pixel_pitch_mm)

src/thd_json/projection_geometry/__init__.py

@@ -45,6 +45,7 @@ def get_projection_geometry_dict(
     detector_center_position_mm: np.ndarray,
     detector_center_orientation_quat: np.ndarray,
     header: JsonHeader | None = None,
+    focal_spot_orientation_quat: np.ndarray | None = None
 ):
     if header is None:
         header = generate_header()
@@ -59,6 +60,10 @@ def get_projection_geometry_dict(
     projection_geometry["detector_center_orientation_quat"] = quaternion_to_dict(
         detector_center_orientation_quat
     )
+    if focal_spot_orientation_quat is not None:
+        projection_geometry["focal_spot_orientation_quat"] = quaternion_to_dict(
+            focal_spot_orientation_quat
+        )
 
     projection_geometry["header"] = {"uuid": header.uuid}