Resolve "Implement ci_GEM"

Closes #20 (closed)

compact/ci_HCAL.xml

@@ -2,7 +2,7 @@
        xmlns:xs="http://www.w3.org/2001/XMLSchema" 
        xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/compact/1.0/compact.xsd">
 
-  <!-- Some information about detector  -->
+  <!-- Some information about detector-->  
   <info name="Central Ion HCAL" title="Central Ion HCAL"
         author="Marshall Scott"
         url="https://eicweb.phy.anl.gov/EIC/detectors/reference_detector.git"
@@ -10,15 +10,12 @@
         version="v1 2021-03-31">
     <comment>Central Ion HCAL</comment>        
   </info>
-
-  <!-- Use DD4hep elements and materials definitions -->
+   
   <includes>
-    <gdmlFile ref="elements.xml"/>
-    <gdmlFile ref="materials.xml"/>
-    <gdmlFile ref="refdetector_defs.xml"/>
   </includes>
 
-  <!-- Define the dimensions of the world volume -->
+
+  <!-- These definitons are in the definitions.xml file
   <define>
     <constant name="ci_HCAL_id"      value="1"/>
     <constant name="ci_HCAL_rin"     value="0 * cm"/>
@@ -33,6 +30,7 @@
     <constant name="ci_HCAL_lay_thickness" value="2* cm"/>
     <constant name="ci_HCAL_lay_gapz"      value="2* cm"/>
   </define>
+  -->
 
    <limits>
    	<comment>Not defined within the ci_HCAL.hh file</comment>
@@ -42,14 +40,10 @@
   	<comment>Not defined within the ci_HCAL.hh file</comment>
   </regions>
 
-  <!-- Common Generic visualization attributes -->
-  <!-- change this -->
-  <comment>Common Generic visualization attributes</comment>
   <display>
-    <vis name="ci_HCALVis"  r= "0.8"  g="0.4"  b="0.3" alpha="0.8" showDaughters="true" visible="true"/>
   </display>
 
-  <!-- Define detector, currentky dummy values -->
+  <!-- Define detector -->
   <detectors>
     <comment>
       Central Ion HCAL