From 105e2b047e6eae2f427375dc11288e9fb46e3947 Mon Sep 17 00:00:00 2001
From: Pete R Jemian <prjemian@gmail.com>
Date: Fri, 16 Sep 2022 09:15:13 -0500
Subject: [PATCH] DOC #522 justify to compute Q

---
 applications/NXsas.nxdl.xml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/applications/NXsas.nxdl.xml b/applications/NXsas.nxdl.xml
index 092fb459f..77ace5382 100644
--- a/applications/NXsas.nxdl.xml
+++ b/applications/NXsas.nxdl.xml
@@ -115,6 +115,9 @@
             Since the beam center is to be determined as a step of data
             reduction, it is not necessary to document or assume the position of
             the beam center in acquired data.
+
+            It is necessary to define which are the x and y directions, to coordinate
+            with the pixel size and compute Q.
           </doc>
           <dimensions rank="2">
             <dim index="1" value="nXPixel" />