<?xml version="1.0" encoding="UTF-8"?>
<lccdd>
  <define>

    <constant name="ITS3Thickness"                   value="0.03*mm"/>
    <constant name="VertexBarrel_rmin1"              value="3.3*cm"/>
    <constant name="VertexBarrel_rmin2"              value="5.7*cm"/>
    <constant name="VertexBarrelModule_maxThickness" value="VertexBarrel_rmin2 - VertexBarrel_rmin1"/>
    <constant name="VertexBarrel_length"             value="VertexTrackerBarrel_length"/>
    <constant name="VertexBarrel_thickness"          value="0.05/100*9.37*cm"/>
    <constant name="VertexBarrelService_thickness"   value="VertexBarrel_thickness-ITS3Thickness"/>
    <constant name="VertexBarrel_rmin"               value="VertexBarrel_rmin1"/>
    <constant name="VertexBarrel_rmax"               value="VertexBarrel_rmin2+VertexBarrelModule_maxThickness"/>
    <constant name="VertexBarrelLayer_rOffset"       value="4.0*mm"/>

    <comment> TODO: These should be computed </comment>
    <constant name="VertexBarrel_NModules1" value="14"/>
    <constant name="VertexBarrel_NModules2" value="24"/>

    <!--

    <constant name="VertexTrackerEndcapP_rmin" value="VertexTrackerInnerRadius"/>
    <constant name="VertexTrackerEndcapP_rmax" value="VertexTrackerOuterRadius"/>
    <constant name="VertexTrackerEndcapP_zmin" value="VertexTrackerBarrel_length + 5*mm"/>

    <constant name="VertexTrackerEndcapN_rmin" value="VertexTrackerInnerRadius"/>
    <constant name="VertexTrackerEndcapN_rmax" value="VertexTrackerOuterRadius"/>
    <constant name="VertexTrackerEndcapN_zmin" value="VertexTrackerBarrelLength + 5*mm"/>
    -->
    <constant name="VertexTrackerEndcapN_zmin" value="VertexTrackerBarrel_zmax"/>
    <constant name="VertexTrackerEndcapP_zmin" value="VertexTrackerBarrel_zmax"/>

    <constant name="VertexEndcap_NLayers" value="2"/>
    <constant name="VertexTrackerEndcap_delta" value="(VertexTrackerEndcapP_zmax - VertexTrackerEndcapP_zmin)/VertexEndcap_NLayers"/>

  
</define>


  <display>
  </display>


  <detectors>

    <detector id="VertexSubAssembly_ID" 
      name="VertexSubAssembly" 
      type="DD4hep_SubdetectorAssembly" 
      vis="TrackerSubAssemblyVis">
      <composite name="VertexEndcapN"/>
      <composite name="VertexEndcapP"/> 
      <composite name="VertexBarrel"/>
    </detector>


    <detector 
      id="VertexBarrel_ID"
      name="VertexBarrel"
      type="athena_VertexBarrel"
      readout="VertexBarrelHits"
      insideTrackingVolume="true">
      <dimensions 
        rmin="VertexBarrel_rmin-VertexBarrelLayer_rOffset" 
        rmax="VertexBarrel_rmax-VertexBarrelLayer_rOffset" 
        length="VertexBarrel_length"/>
      <comment> Define available modules </comment>
      <module name="Module1" vis="PurpleVis">
        <frame width="15*mm"  height="10.0*mm" 
          length="VertexBarrel_length" thickness="0.1 * mm" material="CarbonFiber_25percent" vis="BlueGreenVis" />
        <module_component name="silicon" 
          width="14.0*mm" length="VertexBarrel_length-0.1*mm" thickness="0.05*mm" material="Silicon" sensitive="true">
          <position z="-0.025*mm" y="0*mm"/>
        </module_component>
      </module>
      <module name="Module2">
        <frame width="15*mm"  height="10.0*mm" length="VertexBarrel_length" thickness="0.1 * mm" material="CarbonFiber_25percent" vis="BlueGreenVis" />
        <module_component name="silicon" 
          width="14.0*mm" length="VertexBarrel_length-0.1*mm" thickness="0.05*mm" material="Silicon" sensitive="true">
          <position z="-0.025*mm" y="0*mm"/>
        </module_component>
      </module>
      <comment> Layers composed of many arrayed modules  </comment>
      <layer module="Module1" id="1" vis="VertexVis">
        <barrel_envelope 
          inner_r="VertexBarrel_rmin1-VertexBarrelLayer_rOffset" 
          outer_r="VertexBarrel_rmin2-VertexBarrelLayer_rOffset"
          z_length="VertexBarrel_length"/>
        <rphi_layout phi_tilt="10.0*degree" nphi="VertexBarrel_NModules1" phi0="0.0" rc="VertexBarrel_rmin1" dr="0.0 * mm"/>
        <z_layout dr="0.0 * mm" z0="0.0 * mm" nz="1"/>
      </layer>
      <layer module="Module2" id="2" vis="VertexVis">
        <barrel_envelope 
          inner_r="VertexBarrel_rmin2-VertexBarrelLayer_rOffset" 
          outer_r="VertexBarrel_rmax-VertexBarrelLayer_rOffset"
          z_length="VertexBarrel_length"/>
        <rphi_layout phi_tilt="10.0*degree" nphi="VertexBarrel_NModules2" phi0="0.0" rc="VertexBarrel_rmin2" dr="0.0 * mm"/>
        <z_layout dr="0.0 * mm" z0="0.0 * mm" nz="1"/>
      </layer>
    </detector>

    <detector id="VertexEndcapP_ID" 
      name="VertexEndcapP" 
      type="athena_SimpleDiskTracker"
      insideTrackingVolume="true" 
      reflect="false" vis="AnlRed">
      <position x="0" y="0" z="0"/>
      <layer id="1" vis="AnlOrange"
        inner_z="VertexTrackerEndcapP_zmin + 0*VertexTrackerEndcap_delta" 
        inner_r="VertexTrackerEndcapP_rmin" 
        outer_r="VertexTrackerEndcapP_rmax">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      </layer>
      <layer id="2" vis="AnlOrange"
        inner_z="VertexTrackerEndcapP_zmin + 1*VertexTrackerEndcap_delta" 
        inner_r="VertexTrackerEndcapP_rmin" 
        outer_r="VertexTrackerEndcapP_rmax">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      </layer>
    </detector>

    <detector id="VertexEndcapN_ID" 
      name="VertexEndcapN" 
      type="ref_DiskTracker"
      insideTrackingVolume="true" reflect="true" vis="AnlRed">
      <position x="0" y="0" z="0"/>
      <layer id="1" vis="AnlOrange"
        inner_z="VertexTrackerEndcapN_zmin + 0*VertexTrackerEndcap_delta" 
        inner_r="VertexTrackerEndcapN_rmin" 
        outer_r="VertexTrackerEndcapN_rmax">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      </layer>
      <layer id="2" vis="AnlOrange"
        inner_z="VertexTrackerEndcapN_zmin + 1*VertexTrackerEndcap_delta" 
        inner_r="VertexTrackerEndcapN_rmin" 
        outer_r="VertexTrackerEndcapN_rmax">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      </layer>
    </detector>

  </detectors>

  <readouts>
    <readout name="VertexBarrelHits">
      <segmentation type="CartesianGridXY" grid_size_x="0.050*mm" grid_size_y="0.050*mm" />
      <id>system:8,barrel:2,layer:4,module:12,sensor:2,x:32:-16,y:-16</id>
    </readout>
    <readout name="VertexEndcapHits">
      <segmentation type="CartesianGridXY" grid_size_x="0.20*mm" grid_size_y="0.20*mm" />
      <id>system:8,barrel:2,layer:4,module:12,sensor:2,x:32:-16,y:-16</id>
    </readout>
  </readouts>


</lccdd>