DDLPosPart Class Reference

DDLPosPart handles PosPart elements. More...

#include <DDLPosPart.h>

Inheritance diagram for DDLPosPart:

Public Member Functions
	DDLPosPart (DDLElementRegistry *myreg)
void	preProcessElement (const std::string &name, const std::string &nmspace, DDCompactView &cpv) override
	Called by loadAttributes AFTER attributes are loaded. More...
void	processElement (const std::string &name, const std::string &nmspace, DDCompactView &cpv) override
	Processing the element. More...
Public Member Functions inherited from DDXMLElement
void	appendText (const std::string &inText)
	append to the current (i.e. most recently added) More...
virtual std::vector< DDXMLAttribute >::const_iterator	begin (void)
virtual void	clear (void)
	clear this element's contents. More...
	DDXMLElement (DDLElementRegistry *myreg)
	Constructor. More...
	DDXMLElement (DDLElementRegistry *myreg, const bool &clearme)
	Constructor for autoClear element. More...
virtual std::vector< DDXMLAttribute >::const_iterator	end (void)
virtual const std::string &	get (const std::string &name, size_t aIndex=0) const
	Returns a specific value from the aIndex set of attributes. More...
virtual const std::string &	getAttribute (const std::string &name) const
	Access to attributes by name. More...
virtual const DDXMLAttribute &	getAttributeSet (size_t aIndex=0) const
	Get a "row" of attributes, i.e. one attribute set. More...
virtual const DDName	getDDName (const std::string &defaultNS, const std::string &attname=std::string("name"), size_t aIndex=0)
const std::string	getText (size_t tindex=0) const
	retrieve the text blob. More...
virtual std::vector< std::string >	getVectorAttribute (const std::string &name)
	Returns a set of values as a std::vector of strings, given the attribute name. More...
virtual bool	gotText (void) const
	gotText()? kind of like gotMilk? Yes = text has already been encountered. More...
virtual bool	isEmpty (void) const
	Have any elements of this type been encountered but not processed? More...
void	loadAttributes (const std::string &elemName, const std::vector< std::string > &names, const std::vector< std::string > &values, const std::string &nmspace, DDCompactView &cpv)
	Load the element attributes. More...
void	loadText (const std::string &inText)
	Used to load both text and XML comments into this object. More...
std::vector< DDXMLAttribute >::const_iterator &	operator++ (int inc)
	Allow the elements of this type to be iterated over using ++ operator. More...
const std::string &	parent (void) const
	access to parent element name More...
void	setParent (const std::string &pename)
	Set parent element name to central list of names. More...
void	setSelf (const std::string &sename)
	Set self element name to central list of names. More...
virtual size_t	size (void) const
	Number of elements accumulated. More...
virtual void	stream (std::ostream &os) const
	Allow for the elements to have their own streaming method, but also provide a default. More...
void	throwError (const std::string &keyMessage) const
	format std::string for throw an error. More...
virtual	~DDXMLElement (void)=default
	Destructor. More...

Additional Inherited Members
Protected Attributes inherited from DDXMLElement
DDLElementRegistry *	myRegistry_

Detailed Description

DDLPosPart handles PosPart elements.

Author

Michael Case

DDLPosPart.h - description

begin: Tue Oct 30 2001 email: case@.nosp@m.ucdh.nosp@m.ep.uc.nosp@m.davi.nosp@m.s.edu

A PosPart (or Positioning Part or Part Positioner :-)) is used to position a LogicalPart somewhere inside it's parent. So, A PosPart needs two rLogicalParts (self and parent) on which to operate, a Translation and a Rotation.

Definition at line 27 of file DDLPosPart.h.

Constructor & Destructor Documentation

DDLPosPart::DDLPosPart

(

DDLElementRegistry *

myreg

)

Definition at line 16 of file DDLPosPart.cc.

  : DDXMLElement( myreg )
{}

Member Function Documentation

void DDLPosPart::preProcessElement ( const std::string &  name, const std::string &  nmspace, DDCompactView &  cpv  )

overridevirtual

Called by loadAttributes AFTER attributes are loaded.

The preProcessElement method can assume that the attributes are loaded and perform any code that is necessary at the start of an element.

This would allow users to call their own code to setup anything necessary for the continued processing of the child elements.

Reimplemented from DDXMLElement.

Definition at line 26 of file DDLPosPart.cc.

References DDLElementRegistry::getElement(), and DDXMLElement::myRegistry_.

{
  // Clear out child elements.
  myRegistry_->getElement("Rotation")->clear();
  myRegistry_->getElement("ReflectionRotation")->clear();
}

void DDLPosPart::processElement ( const std::string &  name, const std::string &  nmspace, DDCompactView &  cpv  )

overridevirtual

Processing the element.

The processElement method completes any necessary work to process the XML element.

For example, this can be used to call the DDCore to make the geometry in memory. There is a default for this so that if not declared in the inheriting class, no processing is done.

Reimplemented from DDXMLElement.

Definition at line 37 of file DDLPosPart.cc.

References DDXMLElement::clear(), DDrotPtr(), ev, ClhepEvaluator::eval(), DDLElementRegistry::evaluator(), DDXMLElement::getAttributeSet(), DDLElementRegistry::getElement(), DDXMLElement::myRegistry_, DDName::name(), DDName::ns(), DDCompactView::position(), AlCaHLTBitMon_QueryRunRegistry::string, x, y, and z.

{
  // get all internal elements.
  auto myParent     = myRegistry_->getElement("rParent");
  auto myChild      = myRegistry_->getElement("rChild");
  auto myTranslation= myRegistry_->getElement("Translation");
  auto myDDLRotation= myRegistry_->getElement("Rotation");
  auto myrRotation  = myRegistry_->getElement("rRotation");
  auto myDDLRefl    = myRegistry_->getElement("ReflectionRotation");
  auto myrRefl      = myRegistry_->getElement("rReflectionRotation");
  // FIXME!!! add in the new RotationByAxis element...

  // At this time, PosPart is becoming the most complex of the elements.
  // For simply reflections/rotations we have 4 possible internal "components"
  // to the PosPart.  We take them in the following order of priority
  //     rRotation, Rotation, rReflectionRotation, ReflectionRotation.
  //
  // The idea in the following if-else-if is that no matter
  // what was used inside the PosPart element, the order in which we
  // will look for and use an internal element is:
  // rRotation, Rotation, ReflectionRotation, rReflectionRotation.
  // If it falls through here, a default call will result in a nameless 
  // "identity" rotation being passed to DDCore.
  DDName rotn;
  if (myrRotation->size() > 0){
    rotn = myrRotation->getDDName(nmspace);
  }
  else if (myDDLRotation->size() > 0) {
    // The assumption here is that the Rotation element created 
    // a DDRotation already, and so we can use this as an rRotation
    // just provide DDCore with the name of the one just added... 
    // How to handle name conflicts? OVERWRITTEN by DDCore for now.
    rotn = myDDLRotation->getDDName(nmspace);
  }
  else if (myDDLRefl->size() > 0) {
    // The assumption is that a ReflectionRotation has been created and therefore 
    // we can refer to it as the rotation associated with this PosPart.
    // we can further assume that the namespace is the same as this PosPart.
    rotn = myDDLRefl->getDDName(nmspace);
  }
  else if (myrRefl->size() > 0) {
    rotn = myrRefl->getDDName(nmspace);
  }

  ClhepEvaluator & ev = myRegistry_->evaluator();

  double x = 0.0, y = 0.0, z = 0.0;
  if (myTranslation->size() > 0)
  {
    const DDXMLAttribute & atts = myTranslation->getAttributeSet();
    x = ev.eval(nmspace, atts.find("x")->second);
    y = ev.eval(nmspace, atts.find("y")->second);
    z = ev.eval(nmspace, atts.find("z")->second);
  }

  std::unique_ptr<DDRotation> myDDRotation;
  // if rotation is named ...
  if ( rotn.name() != "" && rotn.ns() != "" ) {
    myDDRotation = std::make_unique<DDRotation>(rotn);
  } else { 
    // rotn is not assigned a name anywhere therefore the DDPos assumes the identity matrix.
    myDDRotation = std::make_unique<DDRotation>(DDName(std::string("identity"),std::string("generatedForDDD")));
    // if the identity is not yet defined, then...
    if ( !myDDRotation->isValid() ) {
      myDDRotation = DDrotPtr(DDName(std::string("identity"),std::string("generatedForDDD")), new DDRotationMatrix );
    }
  }


  DDTranslation myDDTranslation(x, y, z);

  const DDXMLAttribute & atts = getAttributeSet();
  std::string copyno = "";
  if (atts.find("copyNumber") != atts.end())
    copyno = atts.find("copyNumber")->second;
    
  cpv.position(DDLogicalPart(myChild->getDDName(nmspace))
           , DDLogicalPart(myParent->getDDName(nmspace))
           , copyno
           , myDDTranslation
           , *myDDRotation);
  
  // clear all "children" and attributes
  myParent->clear();
  myChild->clear();
  myTranslation->clear();
  myDDLRotation->clear();
  myrRotation->clear();
  myDDLRefl->clear();
  myrRefl->clear();

  // after a pos part is done, we know we can clear it.
  clear();
}