DiffractionSpot: Consistent definition of rotation angle

2026-02-05 13:46:59 +01:00
parent cb7e7ad576
commit aac982a239
1 changed files with 3 additions and 1 deletions
@@ -70,7 +70,9 @@ SpotToSave DiffractionSpot::Export(const DiffractionGeometry &geometry, int64_t

    float phi = 0.0f;
    if (geometry.GetRotation()) {
-        phi = geometry.GetRotation()->GetIncrement_deg() * image_num + geometry.GetRotation()->GetWedge_deg();
+        // Rotation angle is considered as increment + half wedge.
+        // It ignores the starting angle.
+        phi = geometry.GetRotation()->GetAngle_deg(image_num) + geometry.GetRotation()->GetWedge_deg() / 2.0f;
    }

    return {