** This is part of the CTSim program
** Copyright (C) 1983-2000 Kevin Rosenberg
**
-** $Id: projections.cpp,v 1.2 2000/06/19 17:58:20 kevin Exp $
+** $Id: projections.cpp,v 1.34 2001/01/02 06:29:23 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"
-
+\r
+const kuint16 Projections::m_signature = ('P'*256 + 'J');\r
/* NAME
* Projections Constructor for projections matrix storage
void
Projections::init (const int nView, const int nDet)
{
+ m_label.setLabelType (Array2dFileLabel::L_HISTORY);
m_nView = nView;
m_nDet = nDet;
newProjData ();
+\r
+ time_t t = time (NULL);\r
+ tm* lt = localtime (&t);\r
+ m_year = lt->tm_year;\r
+ m_month = lt->tm_mon;\r
+ m_day = lt->tm_mday;\r
+ m_hour = lt->tm_hour;\r
+ m_minute = lt->tm_min;\r
+ m_second = lt->tm_sec;\r
}
void
Projections::initFromScanner (const Scanner& scanner)
{
+ m_label.setLabelType (Array2dFileLabel::L_HISTORY);
deleteProjData();
init (scanner.nView(), scanner.nDet());
m_phmLen = scanner.phmLen();
m_rotInc = scanner.rotInc();
m_detInc = scanner.detInc();
+ m_geometry = scanner.geometry();
+ m_focalLength = scanner.focalLength();
+ m_fieldOfView = scanner.fieldOfView();
m_rotStart = 0;
- m_detStart = -scanner.radius() + (scanner.detInc() / 2);
- m_phmLen = scanner.phmLen();
+ m_detStart = -(scanner.detLen() / 2);
+#if 0
+ if (m_geometry == Scanner::GEOMETRY_EQUILINEAR) {
+ m_detInc /= 2;
+ std::cout << "Kludge: detInc /= 2 in Projections::initFromScanner" << endl;
+ }
+#endif
}
void
/* NAME
- * projections_write_header Write data header for projections file
+ * Projections::headerWwrite Write data header for projections file
*
*/
bool
-Projections::headerWrite (void)
+Projections::headerWrite (fnetorderstream& fs)
{
- kuint32 _hsize = m_headerSize;
+ kuint16 _hsize = m_headerSize;
+ kuint16 _signature = m_signature;
kuint32 _nView = m_nView;
kuint32 _nDet = m_nDet;
kuint32 _geom = m_geometry;
- kuint32 _remarksize = m_remark.length();
+ kuint16 _remarksize = m_remark.length();
+ kuint16 _year = m_year;
+ kuint16 _month = m_month;
+ kuint16 _day = m_day;
+ kuint16 _hour = m_hour;
+ kuint16 _minute = m_minute;
+ kuint16 _second = m_second;
+
kfloat64 _calcTime = m_calcTime;
kfloat64 _rotStart = m_rotStart;
kfloat64 _rotInc = m_rotInc;
kfloat64 _detStart = m_detStart;
kfloat64 _detInc = m_detInc;
kfloat64 _phmLen = m_phmLen;
-
- if (m_fd < 0) {
- sys_error (ERR_SEVERE, "m_fd < 0 [projections_write_header]");
- return false;
- }
-
- if (lseek (m_fd, (off_t) 0, SEEK_SET) != (off_t) 0) {
- sys_error (ERR_WARNING, "Error seeking to beginning of fiel [projections_write_header]");
- return false;
- }
+ kfloat64 _fieldOfView = m_fieldOfView;
+ kfloat64 _focalLength = m_focalLength;
- if (! write_nint32 (&_hsize, m_fd) ||
- ! write_nint32 (&_nView, m_fd) ||
- ! write_nint32 (&_nDet, m_fd) ||
- ! write_nint32 (&_geom, m_fd) ||
- ! write_nfloat64 (&_calcTime, m_fd) ||
- ! write_nfloat64 (&_rotStart, m_fd) ||
- ! write_nfloat64 (&_rotInc, m_fd) ||
- ! write_nfloat64 (&_detStart, m_fd) ||
- ! write_nfloat64 (&_detInc, m_fd) ||
- ! write_nfloat64 (&_phmLen, m_fd) ||
- ! write_nint32 (&_remarksize, m_fd) ||
- (::write (m_fd, m_remark.c_str(), _remarksize) != _remarksize)) {
- sys_error (ERR_SEVERE, "Error writing header information [projections_write_header] %ld", _remarksize);
- return false;
- }
- m_headerSize = _hsize = lseek(m_fd, (off_t) 0, SEEK_CUR);
- if ((lseek(m_fd, 0, SEEK_SET) != 0) || ! write_nint32 (&_hsize, m_fd)) {
- sys_error (ERR_SEVERE, "Error writing header information [projections_write_header]");
+ fs.seekp(0);
+ if (! fs)
return false;
- }
+
+ fs.writeInt16 (_hsize);
+ fs.writeInt16 (_signature);
+ fs.writeInt32 (_nView);
+ fs.writeInt32 (_nDet);
+ fs.writeInt32 (_geom);
+ fs.writeFloat64 (_calcTime);
+ fs.writeFloat64 (_rotStart);
+ fs.writeFloat64 (_rotInc);
+ fs.writeFloat64 (_detStart);
+ fs.writeFloat64 (_detInc);
+ fs.writeFloat64 (_phmLen);
+ fs.writeFloat64 (_focalLength);
+ fs.writeFloat64 (_fieldOfView);
+ fs.writeInt16 (_year);
+ fs.writeInt16 (_month);
+ fs.writeInt16 (_day);
+ fs.writeInt16 (_hour);
+ fs.writeInt16 (_minute);
+ fs.writeInt16 (_second);
+ fs.writeInt16 (_remarksize);
+ fs.write (m_remark.c_str(), _remarksize);
+
+ m_headerSize = fs.tellp();
+ _hsize = m_headerSize;
+ fs.seekp(0);
+ fs.writeInt16 (_hsize);
+ if (! fs)
+ return false;
return true;
}
-
/* NAME
* projections_read_header Read data header for projections file
*
*/
-
bool
-Projections::headerRead (void)
+Projections::headerRead (fnetorderstream& fs)
{
- kuint32 _hsize;
- kuint32 _nView;
- kuint32 _nDet;
- kuint32 _geom;
- kuint32 _remarksize = 0;
- kfloat64 _calcTime;
- kfloat64 _rotStart;
- kfloat64 _rotInc;
- kfloat64 _detStart;
- kfloat64 _detInc;
- kfloat64 _phmLen;
+ kuint16 _hsize, _signature, _year, _month, _day, _hour, _minute, _second, _remarksize = 0;
+ kuint32 _nView, _nDet, _geom;
+ kfloat64 _calcTime, _rotStart, _rotInc, _detStart, _detInc, _phmLen, _focalLength, _fieldOfView;
- if (m_fd < 0) {
- sys_error (ERR_SEVERE, "m_fd < 0 [projections_read_header]");
- return false;
- }
-
- if (lseek (m_fd, (off_t) 0, SEEK_SET) != (off_t) 0) {
- sys_error (ERR_WARNING, "Error seeking to beginning of field [projections_read_header]");
- return false;
+ fs.seekg(0);
+ if (! fs)
+ return false;
+
+ fs.readInt16 (_hsize);
+ fs.readInt16 (_signature);
+ fs.readInt32 (_nView);
+ fs.readInt32 (_nDet);
+ fs.readInt32 (_geom);
+ fs.readFloat64 (_calcTime);
+ fs.readFloat64 (_rotStart);
+ fs.readFloat64 (_rotInc);
+ fs.readFloat64 (_detStart);
+ fs.readFloat64 (_detInc);
+ fs.readFloat64 (_phmLen);
+ fs.readFloat64 (_focalLength);
+ fs.readFloat64 (_fieldOfView);
+ fs.readInt16 (_year);
+ fs.readInt16 (_month);
+ fs.readInt16 (_day);
+ fs.readInt16 (_hour);
+ fs.readInt16 (_minute);
+ fs.readInt16 (_second);
+ fs.readInt16 (_remarksize);
+
+ if (! fs) {
+ sys_error (ERR_SEVERE, "Error reading header information , _remarksize=%d [projections_read_header]", _remarksize);
+ return false;
}
- off_t testPos;
- if (! read_nint32 (&_hsize, m_fd)) {
- sys_error (ERR_SEVERE, "Error reading header size , _hsize=%d [projections_read_header]", _hsize);
+ if (_signature != m_signature) {
+ sys_error (ERR_SEVERE, "File %s does not have a valid projection file signature", m_filename.c_str());
return false;
}
- if ( ! read_nint32 (&_nView, m_fd) ||
- ! read_nint32 (&_nDet, m_fd) ||
- ! read_nint32 (&_geom, m_fd) ||
- ! read_nfloat64 (&_calcTime, m_fd) ||
- ! read_nfloat64 (&_rotStart, m_fd) ||
- ! read_nfloat64 (&_rotInc, m_fd) ||
- ! read_nfloat64 (&_detStart, m_fd) ||
- ! read_nfloat64 (&_detInc, m_fd) ||
- ! read_nfloat64 (&_phmLen, m_fd) ||
- ! read_nint32 (&_remarksize, m_fd))
- {
- sys_error (ERR_SEVERE, "Error reading header information , _remarksize=%d [projections_read_header]", _remarksize);
- return false;
- }
-
- char remarkStorage[_remarksize+1];
- if (::read (m_fd, &remarkStorage, _remarksize) != _remarksize) {
+
+ char* pszRemarkStorage = new char [_remarksize+1];
+ fs.read (pszRemarkStorage, _remarksize);
+ if (! fs) {
sys_error (ERR_SEVERE, "Error reading remark, _remarksize = %d", _remarksize);
return false;
}
- remarkStorage[_remarksize] = 0;
- m_remark = remarkStorage;
+ pszRemarkStorage[_remarksize] = 0;
+ m_remark = pszRemarkStorage;
+ delete pszRemarkStorage;\r
- off_t _hsizeread = lseek(m_fd, 0, SEEK_CUR);
- if (_hsizeread != _hsize) {
+ off_t _hsizeread = fs.tellg();
+ if (!fs || _hsizeread != _hsize) {
sys_error (ERR_WARNING, "File header size read %ld != file header size stored %ld [read_projections_header]\n_remarksize=%ld", (long int) _hsizeread, _hsize, _remarksize);
return false;
}
m_detStart = _detStart;
m_detInc = _detInc;
m_phmLen = _phmLen;
+ m_focalLength = _focalLength;
+ m_fieldOfView = _fieldOfView;
+ m_year = _year;
+ m_month = _month;
+ m_day = _day;
+ m_hour = _hour;
+ m_minute = _minute;
+ m_second = _second;
+
+ m_label.setLabelType (Array2dFileLabel::L_HISTORY);
+ m_label.setLabelString (m_remark);
+ m_label.setCalcTime (m_calcTime);
+ m_label.setDateTime (m_year, m_month, m_day, m_hour, m_minute, m_second);
return true;
}
+bool
+Projections::read (const std::string& filename)
+{
+ return read (filename.c_str());
+}
+
bool
Projections::read (const char* filename)
{
- if ((m_fd = open(filename, OPEN_RDONLY | O_BINARY)) < 0) {
- sys_error (ERR_SEVERE, "Error opening projections file %s for input [open_projections]", filename);
+ m_filename = filename;\r
+#ifdef MSVC\r
+ frnetorderstream fileRead (m_filename.c_str(), std::ios::in | std::ios::binary);\r
+#else\r
+ frnetorderstream fileRead (m_filename.c_str(), std::ios::in | std::ios::binary | std::ios::nocreate);\r
+#endif\r
+
+ if (fileRead.fail())
return false;
- }
- if (! headerRead()) {
- sys_error (ERR_SEVERE, "Error reading projections file %s [open_projections]", filename);
+ if (! headerRead (fileRead))
return false;
- }
deleteProjData ();
- newProjData ();
+ newProjData();
for (int i = 0; i < m_nView; i++) {
- if (! detarrayRead (*m_projData[i], i))
+ if (! detarrayRead (fileRead, *m_projData[i], i))
break;
}
- close (m_fd);
- m_fd = -1;
-
+ fileRead.close();
return true;
}
+bool
+Projections::copyViewData (const std::string& filename, std::ostream& os, int startView, int endView)
+{
+ return copyViewData (filename.c_str(), os, startView, endView);
+}
+
+bool
+Projections::copyViewData (const char* const filename, std::ostream& os, int startView, int endView)
+{
+ frnetorderstream is (filename, ios::in | ios::binary);
+ kuint16 sizeHeader, signature;
+ kuint32 _nView, _nDet;
+
+ is.readInt16 (sizeHeader);
+ is.readInt16 (signature);
+ is.readInt32 (_nView);
+ is.readInt32 (_nDet);
+ int nView = _nView;
+ int nDet = _nDet;
+
+ if (signature != m_signature) {
+ sys_error (ERR_FATAL, "Illegal signature in projection file %s", filename);
+ return false;
+ }
+
+ if (startView < 0)
+ startView = 0;
+ if (startView > nView - 1)
+ startView = nView;
+ if (endView < 0 || endView > nView - 1)
+ endView = nView - 1;
+
+ if (startView > endView) { // swap if start > end
+ int tempView = endView;
+ endView = startView;
+ startView = tempView;
+ }
+
+ int sizeView = 8 /* view_angle */ + 4 /* nDet */ + (4 * nDet);
+ unsigned char* pViewData = new unsigned char [sizeView];
+
+ for (int i = startView; i <= endView; i++) {
+ is.seekg (sizeHeader + i * sizeView);
+ is.read (reinterpret_cast<char*>(pViewData), sizeView);
+ os.write (reinterpret_cast<char*>(pViewData), sizeView);
+ if (is.fail() || os.fail())
+ break;
+ }
+
+ delete pViewData;
+ if (is.fail())
+ sys_error (ERR_FATAL, "Error reading projection file");
+ if (os.fail())
+ sys_error (ERR_FATAL, "Error writing projection file");
+
+ return (! (is.fail() | os.fail()));
+}
+
+bool
+Projections::copyHeader (const std::string& filename, std::ostream& os)
+{
+ return copyHeader (filename.c_str(), os);
+}
+
bool
-Projections::write (const char* filename)
+Projections::copyHeader (const char* const filename, std::ostream& os)
{
- if ((m_fd = open (filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY
-#ifndef _WIN32
- , S_IWRITE | S_IREAD | S_IRGRP | S_IROTH
-#endif
- )) < 0) {
- sys_error (ERR_SEVERE, "Error opening file %s for output [projections_create]", filename);
+ frnetorderstream is (filename, std::ios::in | std::ios::binary);
+ kuint16 sizeHeader, signature;
+ is.readInt16 (sizeHeader);
+ is.readInt16 (signature);
+ is.seekg (0);
+ if (signature != m_signature) {
+ sys_error (ERR_FATAL, "Illegal signature in projection file %s", filename);
+ return false;
+ }
+
+ unsigned char* pHdrData = new unsigned char [sizeHeader];
+ is.read (reinterpret_cast<char*>(pHdrData), sizeHeader);
+ if (is.fail()) {
+ sys_error (ERR_FATAL, "Error reading header");
return false;
- }
- if (! headerWrite ()) {
- sys_error(ERR_SEVERE, "Error writing to file %s [create_projections]", filename);
+ }
+
+ os.write (reinterpret_cast<char*>(pHdrData), sizeHeader);
+ if (os.fail()) {
+ sys_error (ERR_FATAL, "Error writing header");
return false;
- }
+ }
+
+ return true;
+}
+
+bool
+Projections::write (const std::string& filename)
+{
+ return write (filename.c_str());
+}
+
+bool
+Projections::write (const char* filename)
+{
+ frnetorderstream fs (filename, std::ios::out | std::ios::binary | std::ios::trunc | std::ios::ate);
+ m_filename = filename;
+ if (! fs) {
+ sys_error (ERR_SEVERE, "Error opening file %s for output [projections_create]", filename);
+ return false;
+ }
- headerWrite ();
+ if (! headerWrite (fs))
+ return false;
if (m_projData != NULL) {
for (int i = 0; i < m_nView; i++) {
- if (! detarrayWrite (*m_projData[i], i))
+ if (! detarrayWrite (fs, *m_projData[i], i))
break;
}
}
+ if (! fs)
+ return false;
- close (m_fd);
- m_fd = -1;
+ fs.close();
return true;
}
*/
bool
-Projections::detarrayRead (DetectorArray& darray, const int iview)
+Projections::detarrayRead (fnetorderstream& fs, DetectorArray& darray, const int iview)
{
const int detval_bytes = darray.nDet() * sizeof(kfloat32);
const int detheader_bytes = sizeof(kfloat64) /* view_angle */ + sizeof(kint32) /* nDet */;
kfloat64 view_angle;
kuint32 nDet;
- if (m_fd < 0) {
- sys_error (ERR_SEVERE, "Tried to read detector array on closed file [detarrayRead]");
- return false;
- }
-
- if (lseek(m_fd, start_data, SEEK_SET) != start_data) {
- sys_error (ERR_SEVERE, "Error seeking detectory array [detarrayRead]");
- return false;
- }
+ fs.seekg (start_data);
- if (! read_nfloat64 (&view_angle, m_fd) ||
- ! read_nint32 (&nDet, m_fd)) {
- sys_error (ERR_SEVERE, "Error reading detector array [detarrayRead]");
- return false;
- }
+ fs.readFloat64 (view_angle);
+ fs.readInt32 (nDet);
darray.setViewAngle (view_angle);
// darray.setNDet ( nDet);
- for (int i = 0; i < nDet; i++) {
+ for (unsigned int i = 0; i < nDet; i++) {
kfloat32 detval;
- if (! read_nfloat32 (&detval, m_fd)) {
- sys_error (ERR_SEVERE, "Error reading detector array [detarrayRead]");
- return false;
- }
+ fs.readFloat32 (detval);
detval_ptr[i] = detval;
}
+ if (! fs)
+ return false;
return true;
}
*/
bool
-Projections::detarrayWrite (const DetectorArray& darray, const int iview)
+Projections::detarrayWrite (fnetorderstream& fs, const DetectorArray& darray, const int iview)
{
const int detval_bytes = darray.nDet() * sizeof(float);
const int detheader_bytes = sizeof(kfloat64) /* view_angle */ + sizeof(kint32) /* nDet */;
kfloat64 view_angle = darray.viewAngle();
kuint32 nDet = darray.nDet();
- if (m_fd < 0) {
- sys_error (ERR_SEVERE, "Tried to write detector array with no file open [detarrayWrite]");
+ fs.seekp (start_data);
+ if (! fs) {
+ sys_error (ERR_SEVERE, "Error seeking detectory array [detarrayWrite]");
return false;
}
- if (lseek(m_fd, start_data, SEEK_SET) != start_data) {
- sys_error (ERR_SEVERE, "Error seeking detectory array [detarrayWrite]");
- return false;
- }
+ fs.writeFloat64 (view_angle);
+ fs.writeInt32 (nDet);
- if ( ! write_nfloat64 (&view_angle, m_fd)) {
- sys_error (ERR_SEVERE, "Error writing detector array [detarrayWrite]");
- return false;
- }
- if ( ! write_nint32 (&nDet, m_fd)) {
- sys_error (ERR_SEVERE, "Error writing detector array [detarrayWrite]");
- return false;
- }
- for (int i = 0; i < nDet; i++) {
- kfloat32 detval = detval_ptr[i];
- if ( ! write_nfloat32 (&detval, m_fd)) {
- sys_error (ERR_SEVERE, "Error writing detector array [detarrayWrite]");
- return false;
- }
+ for (unsigned int i = 0; i < nDet; i++) {
+ kfloat32 detval = detval_ptr[i];
+ fs.writeFloat32 (detval);
}
+ if (! fs)
+ return (false);
+
return true;
}
-
/* NAME
- * prt_projections Print projections data
+ * printProjectionData Print projections data
*
* SYNOPSIS
- * prt_projections (proj)
- * Projections& proj Projection data to be printed
+ * printProjectionData ()
*/
void
-Projections::printProjectionData (void)
+Projections::printProjectionData ()
{
- printf("Projections Print\n\n");
- printf("Description: %s\n", m_remark.c_str());
- printf("nView = %d nDet = %d\n", m_nView, m_nDet);
- printf("rotStart = %8.4f rotInc = %8.4f\n", m_rotStart, m_rotInc);
- printf("detStart = %8.4f detInc = %8.4f\n", m_detStart, m_detInc);
+ printProjectionData (0, nView() - 1);
+}
+void
+Projections::printProjectionData (int startView, int endView)
+{
+ printf("Projections Data\n\n");
+ printf("Description: %s\n", m_remark.c_str());
+ printf("Geometry: %s\n", Scanner::convertGeometryIDToName (m_geometry));
+ printf("nView = %8d nDet = %8d\n", m_nView, m_nDet);
+ printf("focalLength = %8.4f fieldOfView = %8.4f\n", m_focalLength, m_fieldOfView);
+ printf("rotStart = %8.4f rotInc = %8.4f\n", m_rotStart, m_rotInc);
+ printf("detStart = %8.4f detInc = %8.4f\n", m_detStart, m_detInc);
if (m_projData != NULL) {
- for (int ir = 0; ir < m_nView; ir++) {
- DetectorValue* detval = m_projData[ir]->detValues();
- for (int id = 0; id < m_projData[ir]->nDet(); id++)
- printf("%8.4f ", detval[id]);
- printf("\n");
- }
+ if (startView < 0)
+ startView = 0;
+ if (startView > m_nView - 1)
+ startView = m_nView - 1;
+ if (endView > m_nView - 1)
+ endView = m_nView - 1;
+ for (int ir = startView; ir <= endView - 1; ir++) {
+ printf("View %d: angle %f\n", ir, m_projData[ir]->viewAngle());
+ DetectorValue* detval = m_projData[ir]->detValues();
+ for (int id = 0; id < m_projData[ir]->nDet(); id++)
+ printf("%8.4f ", detval[id]);
+ printf("\n");
+ }
}
}
void
-Projections::printScanInfo (void) const
+Projections::printScanInfo (std::ostringstream& os) const
{
- printf ("Number of detectors: %d\n", m_nDet);
- printf (" Number of views: %d\n", m_nView);
- printf (" Remark: %s\n", m_remark.c_str());
- printf (" phmLen: %f\n", m_phmLen);
- printf (" detStart: %f\n", m_detStart);
- printf (" detInc: %f\n", m_detInc);
- printf (" rotStart: %f\n", m_rotStart);
- printf (" rotInc: %f\n", m_rotInc);
+ os << "Number of detectors: " << m_nDet << "\n";
+ os << " Number of views: " << m_nView<< "\n";
+ os << " Remark: " << m_remark.c_str()<< "\n";
+ os << " Geometry: " << Scanner::convertGeometryIDToName (m_geometry)<< "\n";
+ os << " Focal Length: " << m_focalLength<< "\n";
+ os << " Field Of View: " << m_fieldOfView<< "\n";
+ os << " phmLen: " << m_phmLen<< "\n";
+ os << " detStart: " << m_detStart<< "\n";
+ os << " detInc: " << m_detInc<< "\n";
+ os << " rotStart: " << m_rotStart<< "\n";
+ os << " rotInc: " << m_rotInc<< "\n";
}
+
projects / ctsim.git / blobdiff