** This is part of the CTSim program
** Copyright (C) 1983-2000 Kevin Rosenberg
**
-** $Id: phantom.cpp,v 1.8 2000/07/18 03:14:35 kevin Exp $
+** $Id: phantom.cpp,v 1.24 2001/01/02 05:33:37 kevin Exp $
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License (version 2) as
#include "ct.h"
+const int PhantomElement::POINTS_PER_CIRCLE = 360;\r
+const double PhantomElement::SCALE_PELEM_EXTENT=0.005; // increase pelem limits by 0.5% \r
+
+const int Phantom::PHM_INVALID = -1;
+const int Phantom::PHM_HERMAN = 0;
+const int Phantom::PHM_B_HERMAN = 1;
+const int Phantom::PHM_SHEPP_LOGAN = 2;
+const int Phantom::PHM_B_SHEPP_LOGAN = 3;
+const int Phantom::PHM_UNITPULSE = 4;
+
+const char* Phantom::s_aszPhantomName[] =
+{
+ {"herman"},
+ {"herman-b"},
+ {"shepp-logan"},
+ {"shepp-logan-b"},
+ {"unitpulse"},
+};
+
+const char* Phantom::s_aszPhantomTitle[] =
+{
+ {"Herman Head"},
+ {"Herman Head (Bordered)"},
+ {"Shepp-Logan"},
+ {"Shepp-Logan (Bordered)"},
+ {"Unit Pulse"},
+};
+
+const int Phantom::s_iPhantomCount = sizeof(s_aszPhantomName) / sizeof(const char*);
+
// CLASS IDENTIFICATION
-// Phanton
+// Phantom
//
-Phantom::Phantom (void)
+Phantom::Phantom ()
{
init ();
}
}
void
-Phantom::init (void)
+Phantom::init ()
{
m_nPElem = 0;
m_xmin = 1E30;
m_id = PHM_INVALID;
}
-Phantom::~Phantom (void)
+Phantom::~Phantom ()
{
for (PElemIterator i = m_listPElem.begin(); i != m_listPElem.end(); i++) {
delete *i;
const char*
-Phantom::convertPhantomIDToName (const PhantomID phmID)
+Phantom::convertPhantomIDToName (int phmID)
{
- const char *name = "";
+ static const char *name = "";
- if (phmID == PHM_HERMAN)
- name = PHM_HERMAN_STR;
- else if (phmID == PHM_BHERMAN)
- name = PHM_BHERMAN_STR;
- else if (phmID == PHM_ROWLAND)
- name = PHM_ROWLAND_STR;
- else if (phmID == PHM_BROWLAND)
- name = PHM_BROWLAND_STR;
- else if (phmID == PHM_UNITPULSE)
- name = PHM_UNITPULSE_STR;
+ if (phmID >= 0 && phmID < s_iPhantomCount)
+ return (s_aszPhantomName[phmID]);
return (name);
}
+
+const char*
+Phantom::convertPhantomIDToTitle (int phmID)
+{
+ static const char *title = "";
+
+ if (phmID >= 0 && phmID < s_iPhantomCount)
+ return (s_aszPhantomName[phmID]);
+
+ return (title);
+}
-Phantom::PhantomID
+int
Phantom::convertNameToPhantomID (const char* const phmName)
{
- PhantomID id = PHM_INVALID;
+ int id = PHM_INVALID;
- if (strcasecmp (phmName, PHM_HERMAN_STR) == 0)
- id = PHM_HERMAN;
- else if (strcasecmp (phmName, PHM_BHERMAN_STR) == 0)
- id = PHM_BHERMAN;
- else if (strcasecmp (phmName, PHM_ROWLAND_STR) == 0)
- id = PHM_ROWLAND;
- else if (strcasecmp (phmName, PHM_BROWLAND_STR) == 0)
- id = PHM_BROWLAND;
- else if (strcasecmp (phmName, PHM_UNITPULSE_STR) == 0)
- id = PHM_UNITPULSE;
+ for (int i = 0; i < s_iPhantomCount; i++)
+ if (strcasecmp (phmName, s_aszPhantomName[i]) == 0) {
+ id = i;
+ break;
+ }
return (id);
}
bool
Phantom::createFromPhantom (const char* const phmName)
{
- PhantomID phmid = convertNameToPhantomID (phmName);
+ int phmid = convertNameToPhantomID (phmName);
if (phmid == PHM_INVALID) {
m_fail = true;
m_failMessage = "Invalid phantom name ";
}
bool
-Phantom::createFromPhantom (const PhantomID phmid)
+Phantom::createFromPhantom (const int phmid)
{
switch (phmid)
{
case PHM_HERMAN:
addStdHerman();
break;
- case PHM_BHERMAN:
+ case PHM_B_HERMAN:
addStdHermanBordered();
break;
- case PHM_ROWLAND:
- addStdRowland();
+ case PHM_SHEPP_LOGAN:
+ addStdSheppLogan();
break;
- case PHM_BROWLAND:
- addStdRowlandBordered ();
+ case PHM_B_SHEPP_LOGAN:
+ addStdSheppLoganBordered();
break;
case PHM_UNITPULSE:
m_composition = P_UNIT_PULSE;
bool
Phantom::createFromFile (const char* const fname)
{
- bool stoploop = false;
- bool retval = false;
+ bool bGoodFile = true;
FILE *fp;
if ((fp = fopen (fname, "r")) == NULL)
return (false);
- do {
+ m_name = fname;
+
+ while (1) {
double cx, cy, u, v, rot, dens;
char pelemtype[80];
- int n = fscanf (fp, "%79s %lf %lf %lf %lf %lf %lf",
- pelemtype, &cx, &cy, &u, &v, &rot, &dens);
+
+ int status = fscanf (fp, "%79s %lf %lf %lf %lf %lf %lf", pelemtype, &cx, &cy, &u, &v, &rot, &dens);
- if (n == EOF || n == 0) { /* end of file */
- stoploop = true;
- retval = false;
- } else if (n != 7) {
- stoploop = true;
- retval = false;
- } else {
- addPElem (pelemtype, cx, cy, u, v, rot, dens);
- retval = true;
+ if (status == static_cast<int>(EOF))
+ break;
+ else if (status != 7) {
+ sys_error (ERR_WARNING, "Insufficient fields reading phantom file %s [Phantom::createFromFile]", fname);
+ bGoodFile = false;
}
- } while (stoploop == false);
+ addPElem (pelemtype, cx, cy, u, v, rot, dens);
+ }
fclose (fp);
- return (retval);
+ return (bGoodFile);
}
+bool\r
+Phantom::fileWrite (const char* const fname)\r
+{\r
+ fstream file (fname, ios::out);\r
+\r
+ if (! file.fail())\r
+ printDefinitions (file);\r
+ return ! file.fail();\r
+}\r
/* NAME
* addPElem Add pelem
*/
void
-Phantom::print (void) const
+Phantom::print (std::ostream& os) const
{
- printf("PRINTING Phantom\n\n");
- printf("number of pelems in Phantom = %d\n", m_nPElem);
- printf("limits: xmin=%8.2g ymin=%8.2g xmax=%8.2g ymax=%8.2g\n",
- m_xmin, m_ymin, m_xmax, m_ymax);
+ os << "Number of PElements: " << m_nPElem << "\n";
+ os << "Limits: xmin=" << m_xmin << ", ymin=" << m_ymin << ", xmax=" << m_xmax << ", ymax=" << m_ymax << "\n";
- for (PElemIterator i = m_listPElem.begin(); i != m_listPElem.end(); i++) {
- printf("PELEM:\n");
- printf("# pts=%3d atten = %7.4f rot = %7.2f (deg)\n",
- (*i)->nOutlinePoints(), (*i)->atten(), convertRadiansToDegrees ((*i)->rot()));
-
- printf("xmin=%7.3g ymin=%7.3g xmax=%7.3g ymax=%7.3g\n",
- (*i)->xmin(), (*i)->ymin(), (*i)->xmax(), (*i)->ymax());
-
- // for (int i = 0; i < m_nPoints; i++)
- // printf("\t%8.3g %8.3g\n", i->xOutline()[i], i->yOutline()[i]);
+ for (PElemConstIterator i = m_listPElem.begin(); i != m_listPElem.end(); i++) {\r
+ const PhantomElement& rPE = **i;
+ os << "PhantomElement: nPoints=" << rPE.nOutlinePoints();\r
+ os << ", atten=" << rPE.atten() << " rot=" << convertRadiansToDegrees (rPE.rot()) << "\n";
+ os << "xmin=" << rPE.xmin() << ", ymin=" << rPE.ymin() << ", xmax=" << rPE.xmax() << ", ymax=" << rPE.ymax() << "\n";
+ \r
+ if (false)
+ for (int i = 0; i < rPE.nOutlinePoints(); i++)
+ os << rPE.xOutline()[i] << "," << rPE.yOutline()[i] << "\n";
}
}
-
+\r
+void\r
+Phantom::printDefinitions (std::ostream& os) const\r
+{\r
+ for (PElemConstIterator i = m_listPElem.begin(); i != m_listPElem.end(); i++) {\r
+ const PhantomElement& rPE = **i;\r
+ rPE.printDefinition (os);\r
+ }\r
+}
+\r
/* NAME
* show Show vector outline of Phantom to user
#ifdef HAVE_SGP
void
-Phantom::show (void) const
+Phantom::show () const
{
- double wsize = m_xmax - m_xmin;
- double xmin = m_xmin;
- double ymin = m_ymin;
- double xmax, ymax;
- SGP_ID gid;
+ SGPDriver driverSGP ("Phantom Show");
+ SGP sgp (driverSGP);
- if ((m_ymax - m_ymin) > wsize)
- wsize = m_ymax - m_ymin;
- wsize *= 1.1;
+ show (sgp);
- xmax = xmin + wsize;
- ymax = ymin + wsize;
-
- printf("Drawing Phantom:\n\n");
- printf(" data limits: %9.3g, %9.3g, %9.3g, %9.3g\n", m_xmin, m_ymin, m_xmax, m_ymax);
- printf(" window size: %9.3g, %9.3g, %9.3g, %9.3g\n", xmin, ymin, xmax, ymax);
+ std::cout << "Press return to continue";
+ cio_kb_getc();
+}
+
+void
+Phantom::show (SGP& sgp) const
+{
+ double wsize = m_xmax - m_xmin;
+ if ((m_ymax - m_ymin) > wsize)
+ wsize = m_ymax - m_ymin;
+ wsize *= 1.01;
+ double halfWindow = wsize / 2;
- gid = sgp2_init (0, 0, "Phantom Show");
- sgp2_window (xmin, ymin, xmax, ymax);
+ double xcent = m_xmin + (m_xmax - m_xmin) / 2;
+ double ycent = m_ymin + (m_ymax - m_ymin) / 2;
- draw();
+ sgp.setWindow (xcent - halfWindow, ycent - halfWindow, xcent + halfWindow, ycent + halfWindow);
- sgp2_close (gid);
+ draw (sgp);
}
#endif
#ifdef HAVE_SGP
void
-Phantom::draw (void) const
+Phantom::draw (SGP& sgp) const
{
for (PElemIterator i = m_listPElem.begin(); i != m_listPElem.end(); i++)
- sgp2_polyline_abs ((*i)->xOutline(), (*i)->yOutline(), (*i)->nOutlinePoints());
+ sgp.polylineAbs ((*i)->xOutline(), (*i)->yOutline(), (*i)->nOutlinePoints());
}
#endif
/* NAME
- * addStdRowland Make head phantom of S.W. Rowland
+ * addStdSheppLogan Make head phantom of Shepp-Logan
*
* REFERENCES
* S. W. Rowland, "Computer Implementation of Image Reconstruction
*/
void
-Phantom::addStdRowland (void)
+Phantom::addStdSheppLogan ()
{
addPElem ("ellipse", 0.0000, 0.0000, 0.6900, 0.9200, 0.0, 1.00);
addPElem ("ellipse", 0.0000, -0.0184, 0.6624, 0.8740, 0.0, -0.98);
}
void
-Phantom::addStdRowlandBordered (void)
+Phantom::addStdSheppLoganBordered ()
{
- addStdRowland ();
- addPElem ("ellipse", 0.000, 0.0000, 0.7500, 1.000, 0.0, 0.00);
+ addStdSheppLogan ();
+ addPElem ("rectangle", 0.000, 0.0000, 0.8600, 1.150, 0.0, 0.00);
}
/* NAME
*/
void
-Phantom::addStdHerman (void)
+Phantom::addStdHerman ()
{
addPElem ("ellipse", 0.000, 1.50, 0.375, 0.3000, 90.00, -0.003);
addPElem ("ellipse", 0.675, -0.75, 0.225, 0.1500, 140.00, 0.010);
}
void
-Phantom::addStdHermanBordered (void)
+Phantom::addStdHermanBordered ()
{
addStdHerman();
- addPElem ("ellipse", 0.000, 0.000, 8.650, 8.650, 0.00, 0.000);
+ addPElem ("rectangle", 0.000, 0.00, 10.780, 8.110, 90.00, 0.000);
}
void
Phantom::convertToImagefile (ImageFile& im, const int in_nsample, const int trace) const
{
- convertToImagefile (im, in_nsample, trace, 0, im.nx());
+ convertToImagefile (im, in_nsample, trace, 0, im.nx(), true);
}
void
-Phantom::convertToImagefile (ImageFile& im, const int in_nsample, const int trace, const int colStart, const int colCount) const
+Phantom::convertToImagefile (ImageFile& im, const int in_nsample, const int trace, const int colStart, const int colCount, bool bStoreAtColumnPos) const
{
int nx = im.nx();
int ny = im.ny();
ImageFileArray v = im.getArray();
for (int ix = 0; ix < colCount; ix++)
- for (int iy = 0; iy < ny; iy++)
- v[ix][iy] = 0;
+ for (int iy = 0; iy < ny; iy++) {
+ int iColStore = ix;
+ if (bStoreAtColumnPos)
+ iColStore += colStart;
+ v[iColStore][iy] = 0;
+ }
double x_start = xmin + (colStart * xinc);
for (PElemConstIterator pelem = m_listPElem.begin(); pelem != m_listPElem.end(); pelem++) {
double x, y, xi, yi;
int ix, iy, kx, ky;
for (ix = 0, x = x_start; ix < colCount; ix++, x += xinc) {
- for (iy = 0, y = ymin; iy < ny; iy++, y += yinc) {
- for (kx = 0, xi = x + kxofs; kx < nsample; kx++, xi += kxinc) {
- for (ky = 0, yi = y + kyofs; ky < nsample; ky++, yi += kyinc)
- if (rPElem.isPointInside (xi, yi, PHM_COORD) == TRUE)
- v[ix][iy] += rPElem.atten();
+ int iColStore = ix;
+ if (bStoreAtColumnPos)
+ iColStore += colStart;
+ for (iy = 0, y = ymin; iy < ny; iy++, y += yinc) {
+ for (kx = 0, xi = x + kxofs; kx < nsample; kx++, xi += kxinc) {
+ for (ky = 0, yi = y + kyofs; ky < nsample; ky++, yi += kyinc)
+ if (rPElem.isPointInside (xi, yi, PHM_COORD) == TRUE)
+ v[iColStore][iy] += rPElem.atten();
} // for kx
} /* for iy */
} /* for ix */
if (nsample > 1) {
- double factor = 1.0 / (nsample * nsample);
-
- for (int ix = 0; ix < colCount; ix++)
- for (int iy = 0; iy < ny; iy++)
- v[ix][iy] *= factor;
+ double factor = 1.0 / static_cast<double>(nsample * nsample);
+
+\r
+ for (int ix = 0; ix < colCount; ix++) {
+ int iColStore = ix;\r
+ if (bStoreAtColumnPos)\r
+ iColStore += colStart;\r
+ for (int iy = 0; iy < ny; iy++)
+ v[iColStore][iy] *= factor;\r
+ }
}
}
m_rectLimits[2] = m_xmax; m_rectLimits[3] = m_ymax;
}
+\r
-PhantomElement::~PhantomElement (void)
+PhantomElement::~PhantomElement ()
{
delete m_xOutline;
delete m_yOutline;
}
+\r
+void\r
+PhantomElement::printDefinition (std::ostream& os) const\r
+{\r
+ os << convertTypeToName (m_type) << " " << m_cx << " " << m_cy << " " << m_u << " "\r
+ << m_v << " " << convertRadiansToDegrees (m_rot) << " " << m_atten << "\n";\r
+}\r
PhmElemType
PhantomElement::convertNameToType (const char* const typeName)
return (type);
}
+\r
+const char* const\r
+PhantomElement::convertTypeToName (PhmElemType iType)\r
+{\r
+ static char* pszType = "Unknown";\r
+\r
+ if (iType == PELEM_RECTANGLE)\r
+ pszType = "rectangle";\r
+ else if (iType == PELEM_TRIANGLE)\r
+ pszType = "triangle";\r
+ else if (iType == PELEM_ELLIPSE)\r
+ pszType = "ellipse";\r
+ else if (iType == PELEM_SECTOR)\r
+ pszType = "sector";\r
+ else if (iType == PELEM_SEGMENT)\r
+ pszType = "segment";\r
+\r
+ return pszType;\r
+}\r
+\r
void
-PhantomElement::makeTransformMatrices (void)
+PhantomElement::makeTransformMatrices ()
{
GRFMTX_2D temp;
*/
void
-PhantomElement::makeVectorOutline (void)
+PhantomElement::makeVectorOutline ()
{
double radius, theta, start, stop;
double xfact, yfact;
projects / ctsim.git / blobdiff