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 1.11 2000/08/02 18:06:00 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);
80 void collectProjections (Projections& proj, const Phantom& phm, const int start_view = 0, const int trace = TRACE_NONE, SGP* pSGP = NULL);
82 void setNView (int nView);
84 const bool fail(void) const {return m_fail;}
85 const string& failMessage(void) const {return m_failMessage;}
86 const unsigned int nDet(void) const {return m_nDet;}
87 const unsigned int nView(void) const {return m_nView;}
88 const double phmLen(void) const {return m_phmLen;}
89 const double rotInc(void) const {return m_rotInc;}
90 const double detInc(void) const {return m_detInc;}
91 const double radius(void) const {return m_radius;}
93 static const int getGeometryCount() {return s_iGeometryCount;}
94 static const char** getGeometryNameArray() {return s_aszGeometryName;}
95 static const char** getGeometryTitleArray() {return s_aszGeometryTitle;}
96 static int convertGeometryNameToID (const char* const geometryName);
97 static const char* convertGeometryIDToName (const int idGeometry);
98 static const char* convertGeometryIDToTitle (const int idGeometry);
102 string m_failMessage;
104 unsigned int m_nDet; /* Number of detectors in array */
105 unsigned int m_nView; /* Number of rotated views */
106 unsigned int m_nSample; /* Number of rays per detector */
107 double m_detLen; /* Total length of detector array */
108 double m_rotLen; /* Rotation angle length in radians (norm 2PI) */
109 double m_detInc; /* Increment between centers of detectors */
110 double m_rotInc; /* Increment in rotation angle between views */
111 double m_radius; /* Radius of rotation. Distance from center of phm to center of det */
112 double m_phmLen; /* Maximum Length of phantom or area of interest */
115 double xd1,yd1,xd2,yd2; /* Coordinates of detector endpoints */
116 double xs1,ys1,xs2,ys2; /* Coordinates of source endpoints */
117 double angle; /* Starting angle */
120 static const char* s_aszGeometryName[];
121 static const char* s_aszGeometryTitle[];
122 static const int s_iGeometryCount;
123 static const int N_EXTRA_DETECTORS=0; // Number of extra detectors widths when calculating detlen
125 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);
127 double projectSingleLine (const Phantom& phm, const double x1, const double y1, const double x2, const double y2, SGP* pSGP);
129 double projectLineAgainstPElem (const PhantomElement& pelem, const double x1, const double y1, const double x2, const double y2, SGP* pSGP);
131 void traceShowParam (const char *label, const char *fmt, int row, int color, ...);
136 const static int RAYSUM_TRACE_ROW_TITLE=1;
137 const static int RAYSUM_TRACE_ROW_TITLE2=2;
138 const static int RAYSUM_TRACE_ROW_PHANT_ID=4;
139 const static int RAYSUM_TRACE_ROW_CHROMATIC=7;
140 const static int RAYSUM_TRACE_ROW_SCATTER=8;
141 const static int RAYSUM_TRACE_ROW_PHOT_STAT=9;
142 const static int RAYSUM_TRACE_ROW_NDET=12;
143 const static int RAYSUM_TRACE_ROW_NVIEW=13;
144 const static int RAYSUM_TRACE_ROW_SAMPLES=14;
145 const static int RAYSUM_TRACE_ROW_CURR_VIEW=17;
146 const static int RAYSUM_TRACE_ROW_ATTEN=18;