SiDISCS creation xml and cpp

compact/cb_SiDISCS.xml

+<lccdd xmlns:compact="http://www.lcsim.org/schemas/compact/1.0" 
+       xmlns:xs="http://www.w3.org/2001/XMLSchema" 
+       xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/compact/1.0/compact.xsd">
+
+  <!-- Some information about detector-->  
+  <info name="Central Barrel Discs" title="Central Barrel Discs"
+        author="Marshall Scott"
+        url="https://eicweb.phy.anl.gov/EIC/detectors/reference_detector.git"
+        status="development"
+        version="v1 2021-04-13">
+    <comment>Central Barrel Discs</comment>        
+  </info>
+   
+  <includes>
+  </includes>
+
+  <limits>
+  </limits>
+
+  <regions>
+  </regions>
+
+  <display>
+  </display>
+
+  <!-- Define detector -->
+  <detectors>
+    <comment>
+      Central Barrel Discs
+    </comment>
+    <detector id="cb_SiDISCS_ID" name="cb_SiDISCS" type="cb_SiDISCS" insideTrackingVolume="false" vis="cb_SiDISCSVis" readout="cb_SiDISCS_Hits">
+	    <material name="Ar10CO2"/>	    
+      <dimensions rmin="cb_SiDISCS_rin" rmax="cb_SiDISCS_rout" z_length="cb_SiDISCS_sizez" z="cb_SiDISCS_posz" phi0="170" phi1="330" number="cb_SiDISCS_nlayers" rmin1="cb_SiDISCS_lay_rin" rmax1="cb_SiDISCS_lay_rout" />
+      <layer id="0" z="-cb_SiDISCS_sizez * 0.5 + (1 + 0) * cb_SiDISCS_lay_thickness + (1 + 0) * 5 * cm" inner_r="cb_SiDISCS_lay_rin" outer_r="cb_SiDISCS_lay_rout" vis="cb_SiDISCSVis_lay0" />
+      <layer id="1" z="-cb_SiDISCS_sizez * 0.5 + (1 + 1) * cb_SiDISCS_lay_thickness + (1 + 1) * 5 * cm" inner_r="cb_SiDISCS_lay_rin" outer_r="cb_SiDISCS_lay_rout" vis="cb_SiDISCSVis_lay1" />
+      <layer id="2" z="-cb_SiDISCS_sizez * 0.5 + (1 + 2) * cb_SiDISCS_lay_thickness + (1 + 2) * 5 * cm" inner_r="cb_SiDISCS_lay_rin" outer_r="cb_SiDISCS_lay_rout" vis="cb_SiDISCSVis_lay2" />
+      <layer id="3" z="-cb_SiDISCS_sizez * 0.5 + (1 + 3) * cb_SiDISCS_lay_thickness + (1 + 3) * 5 * cm" inner_r="cb_SiDISCS_lay_rin" outer_r="cb_SiDISCS_lay_rout" vis="cb_SiDISCSVis_lay3" />
+      <layer id="4" z="-cb_SiDISCS_sizez * 0.5 + (1 + 4) * cb_SiDISCS_lay_thickness + (1 + 4) * 5 * cm" inner_r="cb_SiDISCS_lay_rin" outer_r="cb_SiDISCS_lay_rout" vis="cb_SiDISCSVis_lay4" />
+    </detector>
+  </detectors>
+  <readouts>
+    <readout name="cb_SiDISCS_Hits">
+      <segmentation type="CartesianGridXY" grid_size_x="1.0*mm" grid_size_y="1.0*mm" />
+      <id>system:8,layer:8,x:32:-16,y:-16</id>  
+    </readout>
+  </readouts>
+
+
+  <plugins>
+  </plugins>
+</lccdd>

compact/definitions.xml

@@ -626,5 +626,26 @@
     <constant name="ci_GEM_posx"    value="0 * cm"/>
     <constant name="ci_GEM_nlayers" value="8"/>
 
+    <comment>
+      --------------------------
+      Central Barrel Silicon Discs
+      --------------------------
+      I will move this later 
+    </comment>
+    <constant name="cb_SiDISCS_ID"      value="500"/>
+    <constant name="cb_SiDISCS_rin"     value="0  * cm"/>
+    <constant name="cb_SiDISCS_rout"    value="20 * cm"/>
+    <constant name="cb_SiDISCS_sizez"   value="30 * cm"/>
+    <constant name="cb_SiDISCS_shiftz"  value="0  * cm"/>
+    <constant name="cb_SiDISCS_posz"    value="50 * cm"/>
+    <constant name="cb_SiDISCS_phi0"    value="170"/>
+    <constant name="cb_SiDISCS_phi1"    value="330"/>
+    
+    <constant name="cb_SiDISCS_nlayers"       value="5"/>
+    <constant name="cb_SiDISCS_lay_rin"       value="5  * cm"/>
+    <constant name="cb_SiDISCS_lay_rout"      value="cb_SiDISCS_rout - 1 * cm"/>
+    <constant name="cb_SiDISCS_lay_thickness" value="1 * cm"/><comment> No defined in .hh file</comment>
+
+
   </define>
 

compact/display.xml

@@ -59,6 +59,13 @@
     <vis name="ci_GEMVis"  r= "0.8"  g="0.4"  b="0.3" alpha="0.8" showDaughters="true" visible="true"/>
     <vis name="ci_HCALVis"  r= "0.6"  g="0"  b="0.6" alpha="1.0" showDaughters="true" visible="true"/>
 
+    <vis name="cb_SiDISCSVis"       r= "0.3"  g="0.0"  b="0.3" alpha="0.1" showDaughters="true" visible="true"/>
+    <vis name="cb_SiDISCSVis_lay0"  r= "0.8"  g="0.4"  b="0.3" alpha="1.0" showDaughters="true" visible="true"/>
+    <vis name="cb_SiDISCSVis_lay1"  r= "0.8"  g="0.5"  b="0.3" alpha="1.0" showDaughters="true" visible="true"/>
+    <vis name="cb_SiDISCSVis_lay2"  r= "0.8"  g="0.6"  b="0.3" alpha="1.0" showDaughters="true" visible="true"/>
+    <vis name="cb_SiDISCSVis_lay3"  r= "0.8"  g="0.6"  b="0.3" alpha="1.0" showDaughters="true" visible="true"/>
+    <vis name="cb_SiDISCSVis_lay4"  r= "0.8"  g="0.7"  b="0.3" alpha="1.0" showDaughters="true" visible="true"/>
+
     <comment>
       Deprecated colors.
     </comment>

reference_detector.xml

@@ -114,6 +114,7 @@
   <include ref="reference_detector/vertex_tracker.xml"/>
   <include ref="compact/silicon_tracker.xml"/>
   -->
+  
   <include ref="ip6/beampipe.xml"/>
   <include ref="compact/solenoid.xml"/>
   <include ref="compact/ecal.xml"/>
@@ -122,13 +123,14 @@
   <include ref="compact/ce_GEM.xml"/>
   <include ref="compact/ffi_ZDC.xml"/>
   <include ref="compact/ci_GEM.xml"/>
-
+  <include ref="compact/cb_SiDISCS.xml"/>
   <!--
   <include ref="compact/ci_HCAL.xml"/>
   <include ref="compact/forward_rich.xml"/>
   <include ref="compact/roman_pots.xml"/>
   <include ref="compact/hcal.xml"/>
   -->
+  
   <include ref="eic/forward_ion_beamline.xml"/>
 
 

src/cb_SiDISCS.cpp

+#include <XML/Helper.h>
+///////////////////////////
+// Central Ion GEM
+///////////////////////////
+
+using namespace dd4hep;
+
+static Ref_t createDetector(Detector& desc, xml_h handle, SensitiveDetector sens)
+{
+
+  xml::DetElement detElem = handle;
+  std::string     detName = detElem.nameStr();
+  int             detID   = detElem.id();
+  xml::Component  dims    = detElem.dimensions();
+  double RIn              = dims.rmin();
+  double ROut             = dims.rmax();
+  double SizeZ            = dims.z_length();
+  double PosZ             = dims.z();
+  double lay_RIn          = dims.rmin1();
+  double lay_ROut         = dims.rmax1();
+  double lay_phi0         = dims.phi0();
+  double lay_phi1         = dims.phi1();
+  Material mat            = desc.material("Ar10CO2");
+  Material Vacuum         = desc.material("Vacuum");
+
+  //Outer volume  
+  Tube    ci_SiDISCS_Solid(RIn, ROut, SizeZ / 2., 0., 360 * dd4hep::deg);
+  Volume  envelopeVol("cb_SiDISCS_Logic", ci_SiDISCS_Solid, Vacuum);
+  envelopeVol.setVisAttributes(detElem.visStr());
+
+  //Ar10CO2 tube for the layers
+  Tube ci_SiDISCS_detSolid(lay_RIn, lay_ROut, PosZ / 2., lay_phi0 * dd4hep::deg, lay_phi1 * dd4hep::deg);
+
+  //Adding layers to placed detector volume
+  for (xml_coll_t li(detElem,_U(layer)); li; ++li){
+    xml_comp_t x_layer = li;
+  	std::string layer_name = detName + _toString(x_layer.id(), "_layer%d");
+    Volume layer_vol(layer_name, ci_SiDISCS_detSolid, mat);
+    layer_vol.setVisAttributes(x_layer.visStr());
+    sens.setType("tracker");
+    layer_vol.setSensitiveDetector(sens);
+  	Position layer_pos(0, 0, x_layer.z());
+  	PlacedVolume layer_phv = envelopeVol.placeVolume(layer_vol, layer_pos);
+  	layer_phv.addPhysVolID("layer", x_layer.id());
+  }
+  
+  DetElement   det(detName, detID);
+  Volume       motherVol = desc.pickMotherVolume(det);
+  Transform3D  tr(RotationZYX(0,0,0), Position(0, 0, 0));
+  PlacedVolume detPV     = motherVol.placeVolume(envelopeVol, tr);
+  detPV.addPhysVolID("system", detID);
+  det.setPlacement(detPV);
+
+  return det;
+}
+// clang-format off
+DECLARE_DETELEMENT(cb_SiDISCS, createDetector)