tweak unicsv bng documentation thanks Hornbydd.

diff --git a/xmldoc/formats/unicsv.xml b/xmldoc/formats/unicsv.xml
index 64a7c13bc2da2cacc4fec3f8f46bca07beef4eb3..15f7f188908289e012c6776f20e4e14f7aa1bea1 100644 (file)
--- a/xmldoc/formats/unicsv.xml
+++ b/xmldoc/formats/unicsv.xml
@@ -103,7 +103,29 @@
      GC1A37,36.090683,-86.679550,The Troll by a182pilot & Family
    </screen>
 </para>
-       
+<para>
+   If processing data from the UK, GPSBabel can process coordinates using X,Y values (often referred to as Eastings/Northings) as shown in <xref linkend="uk_unicsv_1" /> or the full 12 figure alpha numeric, as shown in <xref linkend="uk_unicsv_2" />.
+   Note in <xref linkend="uk_unicsv_2" /> you need to split your original X,Y values into the 100Km 2 character code,
+   eastings and northing values.
+   <example id="uk_unicsv_1">
+     <title>CSV input for UK data with XY coordinates</title>
+     <screen format="linespecific">
+       bng_e,bng_n,name,date
+       353729,177210,id_001,2018/02/03
+       356025,181221,id_002,2018/02/03
+       357962,181528,id_003,2018/03/03
+     </screen>
+   </example>
+   <example id="uk_unicsv_2">
+     <title>CSV input for UK data with alphanumeric coordinates</title>
+     <screen format="linespecific">
+       bng_z,bng_e,bng_n,name,date
+       ST,53729,77210,id_001,2018/02/03
+       ST,56025,81221,id_002,2018/02/03
+       ST,57962,81528,id_003,2018/03/03
+     </screen>
+   </example>
+</para>
 <para>
    On the output side unicsv writes fixed number of columns (waypoint index, latitude and longitude)
    followed by a variable column list depending on internal data.