Added generic barrel support geometry

* Similar to the TrapEndcapTracker
* Supports shapes via dd4hep's createShape.
* See `Check_Shape_*.xml` for exmaples https://github.com/AIDASoft/DD4hep/tree/master/examples/ClientTests/compact

src/BarrelTrackerWithFrame_geo.cpp

@@ -12,6 +12,7 @@
 #include "DDRec/Surface.h"
 #include "DDRec/DetectorData.h"
 #include "XML/Layering.h"
+#include "XML/Utilities.h"
 #include "Acts/Plugins/DD4hep/ActsExtension.hpp"
 #include "Acts/Surfaces/PlanarBounds.hpp"
 #include "Acts/Surfaces/RectangleBounds.hpp"
@@ -27,13 +28,23 @@ using namespace dd4hep::detail;
 
 /** Barrel Tracker with space frame.
  *
- * - Optional "frame" tag within the module element.
  * - Optional "support" tag within the detector element.
+ * 
+ * The shapes are created using createShape which can be one of many basic geomtries. 
+ * See the examples Check_shape_*.xml in 
+ * [dd4hep's examples/ClientTests/compact](https://github.com/AIDASoft/DD4hep/tree/master/examples/ClientTests/compact)
+ * directory.
+ *
+ *
+ * - Optional "frame" tag within the module element.
  *
  * \ingroup trackers
  *
  * \code
  * \endcode
+ * 
+ *
+ * @author Whitney Armstrong
  */
 static Ref_t create_BarrelTrackerWithFrame(Detector& description, xml_h e, SensitiveDetector sens) {
   typedef vector<PlacedVolume> Placements;
@@ -57,38 +68,47 @@ static Ref_t create_BarrelTrackerWithFrame(Detector& description, xml_h e, Sensi
   Tube topVolumeShape(dimensions.rmin(), dimensions.rmax(), dimensions.length() * 0.5);
   Volume assembly(det_name,topVolumeShape,air);
 
-
-//  The Cold Plate is approximately 30 mm wide and is based on the same carbon-ply layup
-//as for the IB Stave. Two pipes with an inner diameter of 2.67 mm and a wall thickness
-//of 64 μm have been used. The two pipes are interconnected at one end of the Cold Plate
-//providing a loop, whose inlet and outlet are on the same side and correspond to the
-//
-//requirements have led to an equilateral section of the frame with a 42 mm wide side, that
-//provides almost the same rigidity for all the possible Stave positions.
-//
-//                     module mat                um
-//
-//Aluminium                                      50
-//Polyimide                                      100
-//Carbon fibre                                   120
-//Silicon                                        50
-//Eccobond-45                                    100
-//
-//Metal layers                 Aluminium        200
-//Insulating layers            Polyimide        200
-//Glue Cooling tube wall       Eccobond-45      100
-//
-//Carbon fleece            40
-//Carbon paper             30
-//Polyimide                64
-//Water                    
-//Carbon fibre             120
-//Eccobond-45              100
-
-
-
   sens.setType("tracker");
 
+  // Loop over the suports
+  for (xml_coll_t su(x_det, _U(support)); su; ++su) {
+    xml_comp_t x_support = su;
+    double      support_thickness = getAttrOrDefault(x_support, _U(thickness), 2.0 * mm);
+    double      support_length    = getAttrOrDefault(x_support, _U(length), 2.0 * mm);
+    double      support_rmin      = getAttrOrDefault(x_support, _U(rmin), 2.0 * mm);
+    double      support_zstart    = getAttrOrDefault(x_support, _U(zstart), 2.0 * mm);
+    std::string support_name      = getAttrOrDefault<std::string>(x_support, _Unicode(name), "support_tube");
+    std::string support_vis       = getAttrOrDefault<std::string>(x_support, _Unicode(vis), "AnlRed");
+    xml_dim_t  pos        (x_support.child(_U(position), false));
+    xml_dim_t  rot        (x_support.child(_U(rotation), false));
+    Solid support_solid;
+    if(x_support.hasChild("shape")){
+      xml_comp_t shape(x_support.child(_U(shape)));
+      string     shape_type = shape.typeStr();
+      support_solid  = xml::createShape(description, shape_type, shape);
+    } else {
+      support_solid = Tube(support_rmin, support_rmin + support_thickness, support_length / 2);
+    }
+    Transform3D tr = Transform3D(Rotation3D(),Position(0,0,(support_zstart + support_length / 2)));
+    if ( pos.ptr() && rot.ptr() )  {
+      Rotation3D  rot3D(RotationZYX(rot.z(0),rot.y(0),rot.x(0)));
+      Position    pos3D(pos.x(0),pos.y(0),pos.z(0));
+      tr = Transform3D(rot3D, pos3D);
+    }
+    else if ( pos.ptr() )  {
+      tr = Transform3D(Rotation3D(),Position(pos.x(0),pos.y(0),pos.z(0)));
+    }
+    else if ( rot.ptr() )  {
+      Rotation3D rot3D(RotationZYX(rot.z(0),rot.y(0),rot.x(0)));
+      tr = Transform3D(rot3D,Position());
+    }
+    Material    support_mat       = description.material(x_support.materialStr());
+    Volume      support_vol(support_name, support_solid, support_mat);
+    support_vol.setVisAttributes(description.visAttributes(support_vis));
+    pv = assembly.placeVolume(support_vol, tr);
+    // pv = assembly.placeVolume(support_vol, Position(0, 0, support_zstart + support_length / 2));
+  }
+
   // loop over the modules
   for (xml_coll_t mi(x_det, _U(module)); mi; ++mi) {
     xml_comp_t x_mod = mi;