1 /*****************************************************************************
5 ** Purpose: Header file for Phantom objects
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: phantom.h,v 1.14 2000/09/04 09:06:46 kevin Exp $
14 ** This program is free software; you can redistribute it and/or modify
15 ** it under the terms of the GNU General Public License (version 2) as
16 ** published by the Free Software Foundation.
18 ** This program is distributed in the hope that it will be useful,
19 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ** GNU General Public License for more details.
23 ** You should have received a copy of the GNU General Public License
24 ** along with this program; if not, write to the Free Software
25 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 ******************************************************************************/
32 #include "ctsupport.h"
45 /* Codes for Coordinate Types */
46 /* Defines coords for isPointInside() */
49 PELEM_COORD, /* Normalized PElem Coordinates */
50 PHM_COORD /* World phantom Coordinates */
57 PhantomElement (const char* const type, const double cx, const double cy, const double u, const double v, const double rot, const double atten);
61 bool isPointInside (double x, double y, const CoordType coord_type) const;
63 bool clipLineNormalizedCoords (double& x1, double& y1, double& x2, double& y2) const;
65 bool clipLineWorldCoords (double& x1, double& y1, double& x2, double& y2) const;
67 const int nOutlinePoints() const {return m_nPoints;}
68 double* rectLimits() {return m_rectLimits;}
69 double* xOutline() {return m_xOutline;}
70 double* yOutline() {return m_yOutline;}
71 const double atten() const {return m_atten;}
72 const double diameter() const {return m_diameter;}
73 const double xmin() const {return m_xmin;}
74 const double xmax() const {return m_xmax;}
75 const double ymin() const {return m_ymin;}
76 const double ymax() const {return m_ymax;}
77 const double rot() const {return m_rot;}
78 const double cx() const {return m_cx;}
79 const double cy() const {return m_cy;}
80 const double u() const {return m_u;}
81 const double v() const {return m_v;}
84 PhmElemType m_type; // pelem type (box, ellipse, etc)
85 double m_cx, m_cy; // center of pelem
86 double m_u, m_v; // size of pelem
87 double m_atten; // X-ray attenuation coefficient
88 double m_rot; // pelem rotation angle (in radians)
89 double *m_x, *m_y; // ptr to array of points in obj world coord
90 int m_nPoints; // number of points in outline arrays
91 double m_xmin, m_xmax, m_ymin, m_ymax; // pelem limits
93 GRFMTX_2D m_xformPhmToObj; // map from phantom to normalized pelem coords
94 GRFMTX_2D m_xformObjToPhm; // map from normalized pelem coords to phantom coords
97 double m_rectLimits[4];
99 static const int POINTS_PER_CIRCLE = 360;
100 static const double SCALE_PELEM_EXTENT=0.005; // increase pelem limits by 0.5%
102 static PhmElemType PhantomElement::convertNameToType (const char* const typeName);
104 void makeTransformMatrices ();
106 void makeVectorOutline ();
108 void calcArcPoints (double x[], double y[], const int pts, const double xcent, const double ycent, const double r, const double start, const double stop);
110 void calcEllipsePoints (double x[], double y[], const int pts, const double u, const double v);
112 static int numCirclePoints (double theta);
114 PhantomElement (const PhantomElement& rhs); // copy constructor
115 PhantomElement& operator= (const PhantomElement&); // assignment operator
120 P_PELEMS, // Phantom made of PElems
121 P_UNIT_PULSE, // Special phantom, not made of pelems
122 P_FILTER // defined only by this type
123 } PhantomComposition;
126 //////////////////////////////////////////////////////
127 // Phantom Class Declaration
128 //////////////////////////////////////////////////////
135 static const int PHM_INVALID;
136 static const int PHM_HERMAN;
137 static const int PHM_B_HERMAN;
138 static const int PHM_SHEPP_LOGAN;
139 static const int PHM_B_SHEPP_LOGAN;
140 static const int PHM_UNITPULSE;
143 Phantom (const char* const phmName);
147 void setComposition (PhantomComposition composition)
148 { m_composition = composition; }
150 const PhantomComposition getComposition () const
151 { return m_composition; }
153 bool createFromPhantom (const char* const phmName);
155 bool createFromPhantom (const int phmid);
157 bool createFromFile (const char* const fname);
159 void addPElem (const PhantomElement& pelem);
161 void addPElem (const char* const composition, const double cx, const double cy, const double u, const double v, const double rot, const double atten);
163 void convertToImagefile (ImageFile& im, const int in_nsample, const int trace, const int colStart, const int colCount, bool bStoreAtColumnPos) const;
165 void convertToImagefile (ImageFile& im, const int in_nsample, const int trace) const;
167 bool fail() const {return m_fail;}
168 const string& failMessage() const {return m_failMessage;}
169 const string& name() const {return m_name;}
170 const int id() const {return m_id;}
174 void show (SGP& sgp) const;
175 void draw (SGP& sgp) const;
178 void addStdHerman ();
179 void addStdHermanBordered ();
180 void addStdSheppLogan ();
181 void addStdSheppLoganBordered ();
185 const double maxAxisLength () const {return (((m_xmax - m_xmin) > (m_ymax - m_ymin)) ? (m_xmax - m_xmin) : (m_ymax - m_ymin));}
187 const double diameter() const {return m_diameter;}
188 const double xmin() const {return m_xmin;}
189 const double xmax() const {return m_xmax;}
190 const double ymin() const {return m_ymin;}
191 const double ymax() const {return m_ymax;}
192 slist<PhantomElement*>& listPElem() {return m_listPElem;}
193 const slist<PhantomElement*>& listPElem() const {return m_listPElem;}
194 const int nPElem() const {return m_nPElem;}
196 static const int getPhantomCount() {return s_iPhantomCount;}
197 static const char** getPhantomNameArray() {return s_aszPhantomName;}
198 static const char** getPhantomTitleArray() {return s_aszPhantomTitle;}
199 static int convertNameToPhantomID (const char* const phmName);
200 static const char* convertPhantomIDToName (const int phmID);
201 static const char* convertPhantomIDToTitle (const int phmID);
204 PhantomComposition m_composition;
205 int m_nPElem; // number of pelems in phantom
206 double m_xmin, m_xmax, m_ymin, m_ymax; // extent of pelems in pelem coordinates
207 double m_diameter; // diameter of object
208 mutable slist<PhantomElement*> m_listPElem; // pelem lists
212 string m_failMessage;
214 static const char* s_aszPhantomName[];
215 static const char* s_aszPhantomTitle[];
216 static const int s_iPhantomCount;
220 Phantom (const Phantom& rhs); // copy constructor
221 Phantom& operator= (const Phantom&); // assignment operator
224 typedef slist<PhantomElement*>::iterator PElemIterator;
225 typedef slist<PhantomElement*>::const_iterator PElemConstIterator;