<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="nxdlformat.xsl" ?>
<!--
# NeXus - Neutron and X-ray Common Data Format
# 
# Copyright (C) 2008-2017 NeXus International Advisory Committee (NIAC)
# 
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 3 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# For further information, see http://www.nexusformat.org
-->
<definition name="NXxkappa" extends="NXxbase" type="group"
  category="application"
  xmlns="http://definition.nexusformat.org/nxdl/3.1"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://definition.nexusformat.org/nxdl/3.1 ../nxdl.xsd"
  version="1.0b"
  >
  <doc>
    raw data from a kappa geometry (CAD4) single crystal diffractometer, extends :ref:`NXxbase`
    
    This is the application definition for raw data from a kappa geometry 
    (CAD4) single crystal
    diffractometer. It extends :ref:`NXxbase`, so the full definition is 
    the content of :ref:`NXxbase` plus the
    data defined here.
  </doc>
  <group type="NXentry" name="entry">
    <field name="definition">
      <doc> Official NeXus NXDL schema to which this file conforms </doc>
      <enumeration>
        <item value="NXxkappa"/>
      </enumeration>
    </field>
    <group type="NXinstrument" name="instrument">
      <group type="NXdetector" name="detector">
        <field name="polar_angle" type="NX_FLOAT" units="NX_ANGLE">
          <doc>The polar_angle (two theta) at each scan point</doc>
          <dimensions rank="1">
            <dim index="1" value="np"/>
          </dimensions>
        </field>
      </group>
    </group>
    <group type="NXsample" name="sample">
      <field name="rotation_angle" type="NX_FLOAT" units="NX_ANGLE"
        axis="1">
        <doc>
          This is an array holding the sample rotation angle at each
          scan point
        </doc>
        <dimensions rank="1">
          <dim index="1" value="np" />
        </dimensions>
      </field>
      <field name="kappa" type="NX_FLOAT" units="NX_ANGLE" axis="1">
        <doc>
          This is an array holding the kappa angle at each scan point
        </doc>
        <dimensions rank="1">
          <dim index="1" value="np" />
        </dimensions>
      </field>
      <field name="phi" type="NX_FLOAT" units="NX_ANGLE" axis="1">
        <doc>
          This is an array holding the phi angle at each scan point
        </doc>
        <dimensions rank="1">
          <dim index="1" value="np" />
        </dimensions>
      </field>
      <field name="alpha" type="NX_FLOAT" units="NX_ANGLE">
        <doc>This holds the inclination angle of the kappa arm. </doc>
      </field>
    </group>
    <group type="NXdata" name="name">
      <link name="polar_angle" target="/NXentry/NXinstrument/NXdetector/polar_angle"></link>
      <link name="rotation_angle" target="/NXentry/NXsample/rotation_angle"></link>
      <link name="kappa" target="/NXentry/NXsample/kappa"></link>
      <link name="phi" target="/NXentry/NXsample/phi"></link>
    </group>
  </group>
</definition>