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 1.17 2000/12/16 06:12:47 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"
43 /* Codes for Coordinate Types */
44 /* Defines coords for isPointInside() */
47 PELEM_COORD, /* Normalized PElem Coordinates */
48 PHM_COORD /* World phantom Coordinates */
55 PhantomElement (const char* const type, const double cx, const double cy, const double u, const double v, const double rot, const double atten);
59 bool isPointInside (double x, double y, const CoordType coord_type) const;
61 bool clipLineNormalizedCoords (double& x1, double& y1, double& x2, double& y2) const;
63 bool clipLineWorldCoords (double& x1, double& y1, double& x2, double& y2) const;
65 const int nOutlinePoints() const {return m_nPoints;}
66 double* rectLimits() {return m_rectLimits;}
67 double* xOutline() {return m_xOutline;}
68 double* yOutline() {return m_yOutline;}
69 const double atten() const {return m_atten;}
70 const double diameter() const {return m_diameter;}
71 const double xmin() const {return m_xmin;}
72 const double xmax() const {return m_xmax;}
73 const double ymin() const {return m_ymin;}
74 const double ymax() const {return m_ymax;}
75 const double rot() const {return m_rot;}
76 const double cx() const {return m_cx;}
77 const double cy() const {return m_cy;}
78 const double u() const {return m_u;}
79 const double v() const {return m_v;}
82 PhmElemType m_type; // pelem type (box, ellipse, etc)
83 double m_cx, m_cy; // center of pelem
84 double m_u, m_v; // size of pelem
85 double m_atten; // X-ray attenuation coefficient
86 double m_rot; // pelem rotation angle (in radians)
87 double *m_x, *m_y; // ptr to array of points in obj world coord
88 int m_nPoints; // number of points in outline arrays
89 double m_xmin, m_xmax, m_ymin, m_ymax; // pelem limits
91 GRFMTX_2D m_xformPhmToObj; // map from phantom to normalized pelem coords
92 GRFMTX_2D m_xformObjToPhm; // map from normalized pelem coords to phantom coords
95 double m_rectLimits[4];
97 static const int POINTS_PER_CIRCLE;
98 static const double SCALE_PELEM_EXTENT; // increase pelem limits by 0.5%
100 static PhmElemType PhantomElement::convertNameToType (const char* const typeName);
102 void makeTransformMatrices ();
104 void makeVectorOutline ();
106 void calcArcPoints (double x[], double y[], const int pts, const double xcent, const double ycent, const double r, const double start, const double stop);
108 void calcEllipsePoints (double x[], double y[], const int pts, const double u, const double v);
110 static int numCirclePoints (double theta);
112 PhantomElement (const PhantomElement& rhs); // copy constructor
113 PhantomElement& operator= (const PhantomElement&); // assignment operator
118 P_PELEMS, // Phantom made of PElems
119 P_UNIT_PULSE, // Special phantom, not made of pelems
120 P_FILTER // defined only by this type
121 } PhantomComposition;
124 //////////////////////////////////////////////////////
125 // Phantom Class Declaration
126 //////////////////////////////////////////////////////
133 static const int PHM_INVALID;
134 static const int PHM_HERMAN;
135 static const int PHM_B_HERMAN;
136 static const int PHM_SHEPP_LOGAN;
137 static const int PHM_B_SHEPP_LOGAN;
138 static const int PHM_UNITPULSE;
141 Phantom (const char* const phmName);
145 void setComposition (PhantomComposition composition)
146 { m_composition = composition; }
148 const PhantomComposition getComposition () const
149 { return m_composition; }
151 bool createFromPhantom (const char* const phmName);
153 bool createFromPhantom (const int phmid);
155 bool createFromFile (const char* const fname);
157 void addPElem (const PhantomElement& pelem);
159 void addPElem (const char* const composition, const double cx, const double cy, const double u, const double v, const double rot, const double atten);
161 void convertToImagefile (ImageFile& im, const int in_nsample, const int trace, const int colStart, const int colCount, bool bStoreAtColumnPos) const;
163 void convertToImagefile (ImageFile& im, const int in_nsample, const int trace) const;
165 bool fail() const {return m_fail;}
166 const std::string& failMessage() const {return m_failMessage;}
167 const std::string& name() const {return m_name;}
168 const int id() const {return m_id;}
172 void show (SGP& sgp) const;
173 void draw (SGP& sgp) const;
176 void addStdHerman ();
177 void addStdHermanBordered ();
178 void addStdSheppLogan ();
179 void addStdSheppLoganBordered ();
183 const double maxAxisLength () const {return (((m_xmax - m_xmin) > (m_ymax - m_ymin)) ? (m_xmax - m_xmin) : (m_ymax - m_ymin));}
185 const double diameter() const {return m_diameter;}
186 const double xmin() const {return m_xmin;}
187 const double xmax() const {return m_xmax;}
188 const double ymin() const {return m_ymin;}
189 const double ymax() const {return m_ymax;}
190 std::list<PhantomElement*>& listPElem() {return m_listPElem;}
191 const std::list<PhantomElement*>& listPElem() const {return m_listPElem;}
192 const int nPElem() const {return m_nPElem;}
194 static const int getPhantomCount() {return s_iPhantomCount;}
195 static const char** getPhantomNameArray() {return s_aszPhantomName;}
196 static const char** getPhantomTitleArray() {return s_aszPhantomTitle;}
197 static int convertNameToPhantomID (const char* const phmName);
198 static const char* convertPhantomIDToName (const int phmID);
199 static const char* convertPhantomIDToTitle (const int phmID);
202 PhantomComposition m_composition;
203 int m_nPElem; // number of pelems in phantom
204 double m_xmin, m_xmax, m_ymin, m_ymax; // extent of pelems in pelem coordinates
205 double m_diameter; // diameter of object
206 mutable std::list<PhantomElement*> m_listPElem; // pelem lists
210 std::string m_failMessage;
212 static const char* s_aszPhantomName[];
213 static const char* s_aszPhantomTitle[];
214 static const int s_iPhantomCount;
218 Phantom (const Phantom& rhs); // copy constructor
219 Phantom& operator= (const Phantom&); // assignment operator
222 typedef std::list<PhantomElement*>::iterator PElemIterator;
223 typedef std::list<PhantomElement*>::const_iterator PElemConstIterator;