From dea46ac332090460005aa1605ebe96cbf7935880 Mon Sep 17 00:00:00 2001
From: Frank Gaede <frank.gaede@desy.de>
Date: Mon, 23 Mar 2015 15:35:49 +0000
Subject: [PATCH] - added method: Geometry::Volume createPlacedEnvelope(
DD4hep::Geometry::LCDD& lcdd, DD4hep::XML::Handle_t e ,
DD4hep::Geometry::DetElement sdet ) ;
---
DDCore/include/XML/Utilities.h | 17 ++++++++
DDCore/src/XML/Utilities.cpp | 78 ++++++++++++++++++++++++++++++++++
2 files changed, 95 insertions(+)
diff --git a/DDCore/include/XML/Utilities.h b/DDCore/include/XML/Utilities.h
index 788e7df67..ecc8cf941 100644
--- a/DDCore/include/XML/Utilities.h
+++ b/DDCore/include/XML/Utilities.h
@@ -22,6 +22,23 @@ namespace DD4hep {
/// Create a solid shape using the plugin mechanism from the attributes of the XML element
Geometry::Solid createShape(Geometry::LCDD& lcdd, const std::string& shape_type, XML::Element element);
+
+ /** Create an envelope volume that is placed into the world volume ( the parent volume of sdet) from an xml
+ * element <envelope/> with child nodes <shape/> and optionally <position/> and <rotation/>.
+ * Example: <br>
+ * <p>
+ * <envelope vis="ILD_ECALVis">
+ * <shape type="PolyhedraRegular" numsides="8" rmin="TPC_outer_radius+Ecal_Tpc_gap" rmax="Ecal_outer_radius"
+ * dz="2.*TPC_Ecal_Hcal_barrel_halfZ" material = "Air" />
+ * <rotation x="0*deg" y="0*deg" z="90*deg-180*deg/8"/>
+ * </envelope>
+ *
+ * @author S.Lu DESY, F. Gaede CERN/DESY
+ * @version $Id:$
+ */
+ Geometry::Volume createPlacedEnvelope( DD4hep::Geometry::LCDD& lcdd, DD4hep::XML::Handle_t e ,
+ DD4hep::Geometry::DetElement sdet ) ;
+
} /* End namespace XML */
} /* End namespace DD4hep */
#endif /* DD4hep_XML_XMLUTILITIES_H */
diff --git a/DDCore/src/XML/Utilities.cpp b/DDCore/src/XML/Utilities.cpp
index dfe91e777..6c68bcea4 100644
--- a/DDCore/src/XML/Utilities.cpp
+++ b/DDCore/src/XML/Utilities.cpp
@@ -11,9 +11,11 @@
#include "DD4hep/Printout.h"
#include "DD4hep/Plugins.h"
#include "DD4hep/LCDD.h"
+#include "DD4hep/DetFactoryHelper.h"
using namespace std;
using namespace DD4hep;
+using namespace DD4hep::Geometry;
/// Create a solid shape using the plugin mechanism from the attributes of the XML element
Geometry::Solid
@@ -29,3 +31,79 @@ DD4hep::XML::createShape(Geometry::LCDD& lcdd, const std::string& shape_type, XM
}
return solid;
}
+
+
+
+
+Geometry::Volume DD4hep::XML::createPlacedEnvelope( DD4hep::Geometry::LCDD& lcdd, DD4hep::XML::Handle_t e ,
+ DD4hep::Geometry::DetElement sdet ){
+
+ xml_det_t x_det = e;
+ string det_name = x_det.nameStr();
+
+ xml_comp_t x_env = x_det.child( DD4hep::XML::Strng_t("envelope") ) ;
+ xml_comp_t x_shape = x_env.child( _U(shape) );
+
+ Material env_mat = lcdd.material( x_shape.materialStr() );
+
+
+ bool useRot = false ;
+ bool usePos = false ;
+ Position pos ;
+ RotationZYX rot ;
+
+ if( x_env.hasChild( _U(position) ) ) {
+ usePos = true ;
+ xml_comp_t env_pos = x_env.position();
+ pos = Position( env_pos.x(),env_pos.y(),env_pos.z() );
+ }
+ if( x_env.hasChild( _U(rotation) ) ) {
+ useRot = true ;
+ xml_comp_t env_rot = x_env.rotation();
+ rot = RotationZYX( env_rot.z(),env_rot.y(),env_rot.x() ) ;
+ }
+
+
+ // ---- create a shape from the specified xml element --------
+ Box env_solid = xml_comp_t( x_shape ).createShape();
+
+ if( !env_solid.isValid() ){
+
+ throw std::runtime_error( std::string(" Cannot create envelope volume : ") + x_shape.typeStr() +
+ std::string(" for detector " ) + det_name ) ;
+ }
+
+ Volume envelope ( det_name+"_envelope", env_solid, env_mat );
+
+ PlacedVolume env_pv ;
+
+ Volume mother = lcdd.pickMotherVolume(sdet);
+
+
+ // ---- place the envelope into the mother volume
+ // only specify transformations given in xml
+ // to allow for optimization
+
+ if( useRot && usePos ){
+ env_pv = mother.placeVolume( envelope , Transform3D( rot, pos ) ) ;
+
+ } else if( useRot ){
+ env_pv = mother.placeVolume( envelope , rot ) ;
+
+ } else if( usePos ){
+ env_pv = mother.placeVolume( envelope , pos ) ;
+
+ } else {
+ env_pv = mother.placeVolume( envelope );
+ }
+
+ // ----------------------------------------------
+
+ env_pv.addPhysVolID("system", sdet.id());
+
+ sdet.setPlacement( env_pv ) ;
+
+ envelope.setAttributes( lcdd,x_det.regionStr(),x_det.limitsStr(),x_env.visStr());
+
+ return envelope ;
+}
--
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