1 /*****************************************************************************
5 ** Purpose: Scanner header file
6 ** Programmer: Kevin Rosenberg
7 ** Date Started: July 1, 1984
9 ** This is part of the CTSim program
10 ** Copyright (C) 1983-2000 Kevin Rosenberg
12 ** $Id: scanner.h,v 1.12 2000/08/25 15:59:13 kevin Exp $
15 ** This program is free software; you can redistribute it and/or modify
16 ** it under the terms of the GNU General Public License (version 2) as
17 ** published by the Free Software Foundation.
19 ** This program is distributed in the hope that it will be useful,
20 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
21 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 ** GNU General Public License for more details.
24 ** You should have received a copy of the GNU General Public License
25 ** along with this program; if not, write to the Free Software
26 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 ******************************************************************************/
39 // Projections are collected along an array of ndet detectors. The data
40 // for these detectors is stored in the class DetectorArray
42 typedef float DetectorValue;
47 DetectorArray (const int ndet);
48 ~DetectorArray (void);
50 const int nDet(void) const {return m_nDet;}
51 const double viewAngle(void) const {return m_viewAngle;}
52 DetectorValue* detValues(void) {return m_detValues;}
53 const DetectorValue* detValues(void) const {return m_detValues;}
55 void setViewAngle (double viewAngle)
56 { m_viewAngle = viewAngle; }
59 DetectorValue* m_detValues; // Pointer to array of values recorded by detector
60 int m_nDet; // Number of detectors in array */
61 double m_viewAngle; // View angle in radians
63 DetectorArray& operator=(const DetectorArray& rhs); // assignment
64 DetectorArray (const DetectorArray& rhs); // copy constructor
71 static const int Scanner::GEOMETRY_INVALID;
72 static const int Scanner::GEOMETRY_PARALLEL;
73 static const int Scanner::GEOMETRY_EQUILINEAR;
74 static const int Scanner::GEOMETRY_EQUIANGULAR;
77 Scanner (const Phantom& phm, const char* const geometryName, int nDet, int nView, int nSample, const double rot_anglen, double dFieldOfView, double dFocalLength);
80 void collectProjections (Projections& proj, const Phantom& phm, const int trace = TRACE_NONE, SGP* pSGP = NULL);
82 void collectProjections (Projections& proj, const Phantom& phm, const int iStartView, const int iNumViews, bool bStoreAtViewPosition, const int trace = TRACE_NONE, SGP* pSGP = NULL);
84 void setNView (int nView);
86 const bool fail(void) const {return m_fail;}
87 const string& failMessage(void) const {return m_failMessage;}
88 const unsigned int nDet(void) const {return m_nDet;}
89 const unsigned int nView(void) const {return m_nView;}
90 const double phmLen(void) const {return m_phmLen;}
91 const double rotInc(void) const {return m_rotInc;}
92 const double detInc(void) const {return m_detInc;}
93 const double detLen(void) const {return m_detLen;}
95 static const int getGeometryCount() {return s_iGeometryCount;}
96 static const char** getGeometryNameArray() {return s_aszGeometryName;}
97 static const char** getGeometryTitleArray() {return s_aszGeometryTitle;}
98 static int convertGeometryNameToID (const char* const geometryName);
99 static const char* convertGeometryIDToName (const int idGeometry);
100 static const char* convertGeometryIDToTitle (const int idGeometry);
104 string m_failMessage;
106 unsigned int m_nDet; /* Number of detectors in array */
107 unsigned int m_nView; /* Number of rotated views */
108 unsigned int m_nSample; /* Number of rays per detector */
109 double m_dFieldOfView; // Field of View
110 double m_dFocalLength; // Focal Length
111 double m_detLen; // Total length of detector array
112 double m_rotLen; // Rotation angle length in radians (norm 2PI)
113 double m_detInc; // Increment between centers of detectors
114 double m_rotInc; // Increment in rotation angle between views
115 double m_phmLen; // Maximum Length of phantom or area of interest
118 double xd1,yd1,xd2,yd2; /* Coordinates of detector endpoints */
119 double xs1,ys1,xs2,ys2; /* Coordinates of source endpoints */
120 double angle; /* Starting angle */
123 static const char* s_aszGeometryName[];
124 static const char* s_aszGeometryTitle[];
125 static const int s_iGeometryCount;
127 void projectSingleView (const Phantom& phm, DetectorArray& darray, const double xd1, const double yd1, const double xd2, const double yd2, const double xs1, const double ys1, const double xs2, const double ys2, SGP* pSGP);
129 double projectSingleLine (const Phantom& phm, const double x1, const double y1, const double x2, const double y2, SGP* pSGP);
131 double projectLineAgainstPElem (const PhantomElement& pelem, const double x1, const double y1, const double x2, const double y2, SGP* pSGP);
133 void traceShowParam (SGP* pSGP, const char *label, const char *fmt, int row, int color, ...);
138 const static int RAYSUM_TRACE_ROW_TITLE=1;
139 const static int RAYSUM_TRACE_ROW_TITLE2=2;
140 const static int RAYSUM_TRACE_ROW_PHANT_ID=4;
141 const static int RAYSUM_TRACE_ROW_CHROMATIC=7;
142 const static int RAYSUM_TRACE_ROW_SCATTER=8;
143 const static int RAYSUM_TRACE_ROW_PHOT_STAT=9;
144 const static int RAYSUM_TRACE_ROW_NDET=12;
145 const static int RAYSUM_TRACE_ROW_NVIEW=13;
146 const static int RAYSUM_TRACE_ROW_SAMPLES=14;
147 const static int RAYSUM_TRACE_ROW_CURR_VIEW=17;
148 const static int RAYSUM_TRACE_ROW_ATTEN=18;