modified: adding_detectors.md

src/docs/part2/adding_detectors.md

@@ -175,10 +175,10 @@ have to map exactly to detector geometry. However, it typically will typically
 parallel the geometry (and probably should).
 
 ```cpp
-  string  module_name = "RomanPot";
-  Assembly    assembly(det_name + "_assembly");
-  DetElement  sdet(    det_name, det_id);
-  sens.setType("tracker");
+string  module_name = "RomanPot";
+Assembly    assembly(det_name + "_assembly");
+DetElement  sdet(    det_name, det_id);
+sens.setType("tracker");
 ```
 The last line sets the `SensitiveDetector sens` argument to be the tracker type 
 (which is a DD4hep built-in). We will soon assign this to sensitive volumes.  
@@ -186,8 +186,8 @@ The last line sets the `SensitiveDetector sens` argument to be the tracker type
 looks up the detector name (here "MyRomanPot").
 
 ```cpp
-  double z_offset  = (x_det.hasAttr(_Unicode(zoffset))) ? x_det.attr<double>(_Unicode(zoffset)) : 0.0;
-  double thickness  = (x_det.hasAttr(_Unicode(thickness))) ? x_det.attr<double>(_Unicode(thickness)) : 0.01*dd4hep::cm;
+double z_offset  = (x_det.hasAttr(_Unicode(zoffset))) ? x_det.attr<double>(_Unicode(zoffset)) : 0.0;
+double thickness  = (x_det.hasAttr(_Unicode(thickness))) ? x_det.attr<double>(_Unicode(thickness)) : 0.01*dd4hep::cm;
 ```
 Here we grab attributes and provide default values. We continue with default 
 values that could also be define through attributes, however, we will want to 
@@ -195,31 +195,31 @@ add child elements of the detector tag (so the attributes does not grow too
 long).
 
 ```cpp
-  double rp_chamber_thickness = 5.0*dd4hep::mm;
-  double rp_chamber_radius    = 5.0*dd4hep::cm;
-  double rp_chamber_length    = 50.0*dd4hep::cm;
-  Tube    rp_beam_pipe_tube(rp_chamber_radius, rp_chamber_radius+rp_chamber_thickness, rp_chamber_length/2.0);
-  Tube    rp_beam_vacuum_tube(0.0, rp_chamber_radius+rp_chamber_thickness, rp_chamber_length/2.0);
-  Tube    rp_beam_vacuum_tube2(0.0, rp_chamber_radius, rp_chamber_length/2.0);
-
-  double rp_detector_tube_radius    = 2.5*dd4hep::cm;
-  double rp_detector_tube_length    = 20.0*dd4hep::cm;
-  Tube    rp_detector_tube(rp_detector_tube_radius, rp_detector_tube_radius+rp_chamber_thickness, rp_detector_tube_length/2.0);
-  Tube    rp_detector_vacuum_tube(0.0, rp_detector_tube_radius+rp_chamber_thickness, rp_detector_tube_length/2.0);
-  Tube    rp_detector_vacuum_tube2(0.0, rp_detector_tube_radius, rp_detector_tube_length/2.0);
-
-  ROOT::Math::Rotation3D rot_X( ROOT::Math::RotationX(M_PI/2.0) );
-  ROOT::Math::Rotation3D rot_Y( ROOT::Math::RotationY(M_PI/2.0) );
-
-  UnionSolid rp_chamber_tee1(rp_beam_vacuum_tube, rp_detector_vacuum_tube, rot_X);
-  UnionSolid rp_chamber_tee12(rp_chamber_tee1, rp_detector_vacuum_tube, rot_Y);
-
-  UnionSolid rp_chamber_tee2(rp_beam_vacuum_tube2, rp_detector_vacuum_tube2, rot_X);
-  UnionSolid rp_chamber_tee22(rp_chamber_tee2, rp_detector_vacuum_tube2, rot_Y);
-
-  SubtractionSolid  sub1(rp_chamber_tee12,rp_chamber_tee22);
-  Volume  rp_chamber_vol("rp_chamber_walls_vol", sub1, aluminum);
-  Volume  rp_vacuum_vol("rp_chamber_vacuum_vol", rp_chamber_tee22, vacuum);
+double rp_chamber_thickness = 5.0*dd4hep::mm;
+double rp_chamber_radius    = 5.0*dd4hep::cm;
+double rp_chamber_length    = 50.0*dd4hep::cm;
+Tube    rp_beam_pipe_tube(rp_chamber_radius, rp_chamber_radius+rp_chamber_thickness, rp_chamber_length/2.0);
+Tube    rp_beam_vacuum_tube(0.0, rp_chamber_radius+rp_chamber_thickness, rp_chamber_length/2.0);
+Tube    rp_beam_vacuum_tube2(0.0, rp_chamber_radius, rp_chamber_length/2.0);
+
+double rp_detector_tube_radius    = 2.5*dd4hep::cm;
+double rp_detector_tube_length    = 20.0*dd4hep::cm;
+Tube    rp_detector_tube(rp_detector_tube_radius, rp_detector_tube_radius+rp_chamber_thickness, rp_detector_tube_length/2.0);
+Tube    rp_detector_vacuum_tube(0.0, rp_detector_tube_radius+rp_chamber_thickness, rp_detector_tube_length/2.0);
+Tube    rp_detector_vacuum_tube2(0.0, rp_detector_tube_radius, rp_detector_tube_length/2.0);
+
+ROOT::Math::Rotation3D rot_X( ROOT::Math::RotationX(M_PI/2.0) );
+ROOT::Math::Rotation3D rot_Y( ROOT::Math::RotationY(M_PI/2.0) );
+
+UnionSolid rp_chamber_tee1(rp_beam_vacuum_tube, rp_detector_vacuum_tube, rot_X);
+UnionSolid rp_chamber_tee12(rp_chamber_tee1, rp_detector_vacuum_tube, rot_Y);
+
+UnionSolid rp_chamber_tee2(rp_beam_vacuum_tube2, rp_detector_vacuum_tube2, rot_X);
+UnionSolid rp_chamber_tee22(rp_chamber_tee2, rp_detector_vacuum_tube2, rot_Y);
+
+SubtractionSolid  sub1(rp_chamber_tee12,rp_chamber_tee22);
+Volume  rp_chamber_vol("rp_chamber_walls_vol", sub1, aluminum);
+Volume  rp_vacuum_vol("rp_chamber_vacuum_vol", rp_chamber_tee22, vacuum);
 ```
 The above code builds the up the two solids associated with 3 tubes 
 intersecting. One volume is the aluminum vacuum chamber walls and the other is