BLWindowShape Struct Reference

#include <BLWindowShape.hh>

List of all members.

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Detailed Description

struct BLWindowShape describes the shape of a window.

This is intended to be used to create a G4PolyCone for the window, a G4PolyCone for its contents, and a G4Tubs for the flange and possibly the pipe to which the flange is bolted (bolts are not modeled).

This class may be subclassed to implement other methods of constructing a window shape.

The standard constructor reads data from filename. The file format is a series of lines: First character # means comment, * means printed comment. Comment and blank lines are ignored. Units are mm. The first line contains the 4 flange variables: innerR outerR insideZ outsideZ The remaining lines contain 3 values for a given radius: r z t The first line must have r=0.0 and have the largest z value and the largest z+t value. z is the inside of the window, z+t is the outside of the window. All values must be positive. Successive r values must increase by at least 0.010 mm. Successive z values and z+t values must decrease by at least 0.010 mm. flangeInnerRadius should equal the last r value. Any z origin may be used (it will be subtracted away). This is intended to be easy to interface to window design spreadsheets (export a list of 3 columns delimited by spaces, then add the appropriate comments and flange values at the top).

Public Member Functions
	BLWindowShape ()
	default constructor.
	BLWindowShape (G4String filename)
	Constructor. Reads directory/filename for the data.
virtual	~BLWindowShape ()
	destructor.
Public Attributes
G4double	flangeInnerRadius
G4double	flangeOuterRadius
G4double	flangeInsideZ
G4double	flangeOutsideZ
std::vector< G4double >	r
std::vector< G4double >	z
std::vector< G4double >	t

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Constructor & Destructor Documentation

BLWindowShape::BLWindowShape

(

)

[inline]

default constructor.

References flangeInnerRadius, flangeInsideZ, flangeOuterRadius, and flangeOutsideZ.

                        : r(), z(), t() { flangeInnerRadius=0.0;
                flangeOuterRadius=0.0; flangeOutsideZ=0.0; flangeInsideZ=0.0; }

BLWindowShape::BLWindowShape

(

G4String

filename

)

Constructor. Reads directory/filename for the data.

References flangeInnerRadius, flangeInsideZ, flangeOuterRadius, flangeOutsideZ, BLCommand::printError(), r, t, and z.

                                              : r(), z(), t()
{
        flangeInnerRadius = 0.0;
        flangeOuterRadius = 0.0;
        flangeInsideZ = 0.0;
        flangeOutsideZ = 0.0;

        G4String file = filename;

        std::ifstream in;
        if(filename != "")
                in.open(file.c_str());
        if(!in.good()) {
                BLCommand::printError("BLWindowShape Cannot open file '%s'",
                                file.c_str());
                return;
        }

        bool flangeLine = true;
        int lineno = 0;
        while(in.good()) {
                char line[1024+1];
                line[0] = '\0';
                in.getline(line,sizeof(line));
                ++lineno;
                if(line[0] == '*')
                        printf("%s\n",line);
                if(line[0] == '\0' || line[0] == '#' || line[0] == '*')
                        continue;
                int n = 0;
                if(flangeLine) {
                        flangeLine = false;
                        n = sscanf(line,"%lf %lf %lf %lf",&flangeInnerRadius,
                            &flangeOuterRadius,&flangeInsideZ,&flangeOutsideZ);
                        n -= 1; // 4 items here, check is for 3
                } else {
                        G4double rr=0.0,zz=0.0,tt=0.0;
                        n = sscanf(line,"%lf %lf %lf",&rr,&zz,&tt);
                        r.push_back(rr);
                        z.push_back(zz);
                        t.push_back(tt);
                }
                if(n != 3) {
                        BLCommand::printError("BLWindowShape Invalid syntax"
                                        " '%s' line %d\n",file.c_str(),lineno);
                        break;
                }
        }
        in.close();
}

virtual BLWindowShape::~BLWindowShape

(

)

[inline, virtual]

destructor.

{ }

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Member Data Documentation

G4double BLWindowShape::flangeInnerRadius

Referenced by BLWindowShape(), and BLCMDabsorber::constructSolids().

G4double BLWindowShape::flangeOuterRadius

Referenced by BLWindowShape(), and BLCMDabsorber::constructSolids().

G4double BLWindowShape::flangeInsideZ

Referenced by BLWindowShape().

G4double BLWindowShape::flangeOutsideZ

Referenced by BLWindowShape(), and BLCMDabsorber::constructSolids().

std::vector<G4double> BLWindowShape::r

Referenced by BLWindowShape(), and BLCMDabsorber::constructSolids().

std::vector<G4double> BLWindowShape::z

Referenced by BLWindowShape(), and BLCMDabsorber::constructSolids().

std::vector<G4double> BLWindowShape::t

Referenced by BLWindowShape(), and BLCMDabsorber::constructSolids().

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The documentation for this struct was generated from the following files:

• BLWindowShape.hh
• BLWindowShape.cc