** Date Started: Aug 1984
**
** This is part of the CTSim program
-** Copyright (C) 1983-2000 Kevin Rosenberg
+** Copyright (c) 1983-2001 Kevin Rosenberg
**
-** $Id: phantom.cpp,v 1.23 2000/12/21 03:40:58 kevin Exp $
+** $Id: phantom.cpp,v 1.29 2001/02/09 14:34:16 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 PhantomElement::POINTS_PER_CIRCLE = 360;
+const double PhantomElement::SCALE_PELEM_EXTENT=0.005; // increase pelem limits by 0.5%
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 int Phantom::PHM_SHEPP_LOGAN = 1;
+const int Phantom::PHM_UNITPULSE = 2;
const char* Phantom::s_aszPhantomName[] =
{
{"herman"},
- {"herman-b"},
{"shepp-logan"},
- {"shepp-logan-b"},
- {"unitpulse"},
+ {"unit-pulse"},
};
const char* Phantom::s_aszPhantomTitle[] =
{
{"Herman Head"},
- {"Herman Head (Bordered)"},
{"Shepp-Logan"},
- {"Shepp-Logan (Bordered)"},
{"Unit Pulse"},
};
m_xmax = -1E30;
m_ymin = 1E30;
m_ymax = -1E30;
- m_diameter = 0;
m_composition = P_PELEMS;
m_fail = false;
m_id = PHM_INVALID;
case PHM_HERMAN:
addStdHerman();
break;
- case PHM_B_HERMAN:
- addStdHermanBordered();
- break;
case PHM_SHEPP_LOGAN:
addStdSheppLogan();
break;
- case PHM_B_SHEPP_LOGAN:
- addStdSheppLoganBordered();
- break;
case PHM_UNITPULSE:
m_composition = P_UNIT_PULSE;
addPElem ("rectangle", 0., 0., 100., 100., 0., 0.); // outline
return (bGoodFile);
}
+bool
+Phantom::fileWrite (const char* const fname)
+{
+ fstream file (fname, ios::out);
+
+ if (! file.fail())
+ printDefinitions (file);
+ return ! file.fail();
+}
/* NAME
* addPElem Add pelem
if (m_ymin > pelem->ymin()) m_ymin = pelem->ymin();
if (m_ymax < pelem->ymax()) m_ymax = pelem->ymax();
- if (m_diameter < pelem->diameter())
- m_diameter = pelem->diameter();
-
- // m_diameter = lineLength(m_xmin, m_ymin, m_xmax, m_ymax);
-
m_nPElem++;
}
*/
void
-Phantom::print () 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()));
+ for (PElemConstIterator i = m_listPElem.begin(); i != m_listPElem.end(); i++) {
+ const PhantomElement& rPE = **i;
+ os << "PhantomElement: nPoints=" << rPE.nOutlinePoints();
+ os << ", atten=" << rPE.atten() << " rot=" << convertRadiansToDegrees (rPE.rot()) << "\n";
+ os << "xmin=" << rPE.xmin() << ", ymin=" << rPE.ymin() << ", xmax=" << rPE.xmax() << ", ymax=" << rPE.ymax() << "\n";
- printf("xmin=%7.3g ymin=%7.3g xmax=%7.3g ymax=%7.3g\n",
- (*i)->xmin(), (*i)->ymin(), (*i)->xmax(), (*i)->ymax());
+ if (false)
+ for (int i = 0; i < rPE.nOutlinePoints(); i++)
+ os << rPE.xOutline()[i] << "," << rPE.yOutline()[i] << "\n";
+ }
+}
+void
+Phantom::print (std::ostringstream& os) const
+{
+ os << "Number of PElements: " << m_nPElem << "\n";
+ os << "Limits: xmin=" << m_xmin << ", ymin=" << m_ymin << ", xmax=" << m_xmax << ", ymax=" << m_ymax << "\n";
+
+ for (PElemConstIterator i = m_listPElem.begin(); i != m_listPElem.end(); i++) {
+ const PhantomElement& rPE = **i;
+ os << "PhantomElement: nPoints=" << rPE.nOutlinePoints();
+ os << ", atten=" << rPE.atten() << " rot=" << convertRadiansToDegrees (rPE.rot()) << "\n";
+ os << "xmin=" << rPE.xmin() << ", ymin=" << rPE.ymin() << ", xmax=" << rPE.xmax() << ", ymax=" << rPE.ymax() << "\n";
- // for (int i = 0; i < m_nPoints; i++)
- // printf("\t%8.3g %8.3g\n", i->xOutline()[i], i->yOutline()[i]);
+ if (false)
+ for (int i = 0; i < rPE.nOutlinePoints(); i++)
+ os << rPE.xOutline()[i] << "," << rPE.yOutline()[i] << "\n";
+ }
+}
+
+void
+Phantom::printDefinitions (std::ostream& os) const
+{
+ for (PElemConstIterator i = m_listPElem.begin(); i != m_listPElem.end(); i++) {
+ const PhantomElement& rPE = **i;
+ rPE.printDefinition (os);
+ }
+}
+
+void
+Phantom::printDefinitions (std::ostringstream& os) const
+{
+ for (PElemConstIterator i = m_listPElem.begin(); i != m_listPElem.end(); i++) {
+ const PhantomElement& rPE = **i;
+ rPE.printDefinition (os);
}
}
addPElem ("ellipse", 0.5538, -0.3858, 0.0330, 0.2060, -18.0, 0.03);
}
-void
-Phantom::addStdSheppLoganBordered ()
-{
- addStdSheppLogan ();
- addPElem ("rectangle", 0.000, 0.0000, 0.8600, 1.150, 0.0, 0.00);
-}
/* NAME
* addStdHerman Standard head phantom of G. T. Herman
addPElem ("ellipse", 0.000, 0.00, 7.875, 5.7187, 90.00, -0.206);
}
-void
-Phantom::addStdHermanBordered ()
-{
- addStdHerman();
- addPElem ("rectangle", 0.000, 0.00, 10.780, 8.110, 90.00, 0.000);
-}
/* NAME
*/
void
-Phantom::convertToImagefile (ImageFile& im, const int in_nsample, const int trace) const
+Phantom::convertToImagefile (ImageFile& im, double dViewRatio, const int in_nsample, const int trace) const
{
- convertToImagefile (im, in_nsample, trace, 0, im.nx(), true);
+ convertToImagefile (im, dViewRatio, 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, bool bStoreAtColumnPos) const
+Phantom::convertToImagefile (ImageFile& im, const double dViewRatio, const int in_nsample, const int trace, const int colStart, const int colCount, bool bStoreAtColumnPos) const
{
int nx = im.nx();
int ny = im.ny();
double dy = m_ymax - m_ymin;
double xcent = m_xmin + dx / 2;
double ycent = m_ymin + dy / 2;
- double phmlen = (dx > dy ? dx : dy);
-
- double phmradius = phmlen / 2;
+ double dHalflen = dViewRatio * (getDiameterBoundaryCircle() / SQRT2 / 2);
- double xmin = xcent - phmradius;
- double xmax = xcent + phmradius;
- double ymin = ycent - phmradius;
- double ymax = ycent + phmradius;
+ double xmin = xcent - dHalflen;
+ double xmax = xcent + dHalflen;
+ double ymin = ycent - dHalflen;
+ double ymax = ycent + dHalflen;
// Each pixel holds the average of the intensity of the cell with (ix,iy) at the center of the pixel
// Set major increments so that the last cell v[nx-1][ny-1] will start at xmax - xinc, ymax - yinc).
if (nsample > 1) {
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
+ int iColStore = ix;
+ if (bStoreAtColumnPos)
+ iColStore += colStart;
for (int iy = 0; iy < ny; iy++)
- v[iColStore][iy] *= factor;\r
+ v[iColStore][iy] *= factor;
}
}
}
makeTransformMatrices (); // calc transform matrices between phantom and normalized phantomelement
makeVectorOutline (); // calculate vector outline of pelem
- // Find maximum diameter of Object
- double r2Max = 0;
- for (int i = 0; i < m_nPoints; i++) {
- double r2 = (m_xOutline[i] * m_xOutline[i]) + (m_yOutline[i] * m_yOutline[i]);
- if (r2 > r2Max)
- r2Max = r2;
- }
- m_diameter = 2 * sqrt( r2Max );
-
m_rectLimits[0] = m_xmin; m_rectLimits[1] = m_ymin;
m_rectLimits[2] = m_xmax; m_rectLimits[3] = m_ymax;
}
+
PhantomElement::~PhantomElement ()
{
delete m_xOutline;
delete m_yOutline;
}
+void
+PhantomElement::printDefinition (std::ostream& os) const
+{
+ os << convertTypeToName (m_type) << " " << m_cx << " " << m_cy << " " << m_u << " "
+ << m_v << " " << convertRadiansToDegrees (m_rot) << " " << m_atten << "\n";
+}
+
+void
+PhantomElement::printDefinition (std::ostringstream& os) const
+{
+ os << convertTypeToName (m_type) << " " << m_cx << " " << m_cy << " " << m_u << " "
+ << m_v << " " << convertRadiansToDegrees (m_rot) << " " << m_atten << "\n";
+}
+
PhmElemType
PhantomElement::convertNameToType (const char* const typeName)
{
return (type);
}
+const char* const
+PhantomElement::convertTypeToName (PhmElemType iType)
+{
+ static char* pszType = "Unknown";
+
+ if (iType == PELEM_RECTANGLE)
+ pszType = "rectangle";
+ else if (iType == PELEM_TRIANGLE)
+ pszType = "triangle";
+ else if (iType == PELEM_ELLIPSE)
+ pszType = "ellipse";
+ else if (iType == PELEM_SECTOR)
+ pszType = "sector";
+ else if (iType == PELEM_SEGMENT)
+ pszType = "segment";
+
+ return pszType;
+}
+
+
void
PhantomElement::makeTransformMatrices ()
{
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