LCD_DocGeoUtil.hh

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// ----------------------------------------------------------------------------
// $Id: LCD_DocGeoUtil.hh,v 1.11 2004/02/03 12:45:21 uid561 Exp $
// ----------------------------------------------------------------------------
//
// LCD_DocGeoUtil.h
//
// static utilities which sort out some of the particular element types
// used in describing LCD detector geometry
//
#ifndef LCD_DOCGEOUTIL_H
#define LCD_DOCGEOUTIL_H
#include "xercesc/dom/deprecated/DOM_Document.hpp"

class LCD_DocGeoUtil {
public:
  // By default return width of a single layer.  If all is set to
  // true, multiply by number of layers
  // Input element may either be a layering element or have a
  // child which is a layering element
  static double getLayerWidth(XERCES_CPP_NAMESPACE::DOM_Element elt,
                              bool all = false);

  // Given a barrel (tube centered on IP) return dimensions
  static bool barrelDim(const XERCES_CPP_NAMESPACE::DOM_Element& tube,
                        double *pInnerR,
                        double *pOuterZ, double *pOuterR = 0);

  // Given a tube (barrel or not) return dimensions in "standard form,"
  // i.e., in terms of offset, length in z-dimension
  static bool tubeDim(const XERCES_CPP_NAMESPACE::DOM_Element& tube,
                      double *pInnerR,
                      double *pOffsetZ, double *pLength,
                      double *pOuterR = 0);

  // Similarly for a disk
  static bool diskDim(const XERCES_CPP_NAMESPACE::DOM_Element& disk,
                      double *pInnerR,
                      double *pInnerZ, double *pOuterR, double *pOuterZ = 0);

  static bool coneDim(const XERCES_CPP_NAMESPACE::DOM_Element& cone,
                      double *pMinInnerR,
                      double *pMinOuterR, double *pMaxInnerR,
                      double *pMaxOuterR, double *pInnerZ, double *pOuterZ);

  // If element is anything other than a volume (e.g., a complex volume)
  // answer will be no.  Otherwise, check one level down for "reflected"
  // attribute.
  static bool reflected(const XERCES_CPP_NAMESPACE::DOM_Element& vol);

  // Given a layered volume, find distance (r for tube, z for disk)
  // from ip to layer 0
  static double getLayer0Dist(const XERCES_CPP_NAMESPACE::DOM_Element& layered);

  // For now don't deal with a complex volume as a single object.
  // In particular it cannot be any other volume's neighbor, and
  // we don't try to compute overall dimensions for a complex volume,
  // just for its constituents

  // Given a complex volume whose component volumes are either all
  // tubes or all disks, find its dimensions
  // static bool complexDim(const DOM_Element& complex,  double *pInnerR,
  //                  double *pInnerZ, double *pOuterR, double *pOuterZ);

  // Given a segmentation element or something that contains one,
  // return number of phi and theta divisions.
  //  NOTE:  Old detector files really specified divisions in cos(theta),
  //  not theta, but the decision has been made to always segment
  //  by theta, even if the file says "cos_theta".
  static bool getSegmentation(const XERCES_CPP_NAMESPACE::DOM_Element& elt,
                              double *nTheta, double *nPhi);
};
#endif

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