** This is part of the CTSim program
** Copyright (c) 1983-2001 Kevin Rosenberg
**
-** $Id: scanner.cpp,v 1.33 2001/03/01 07:30:49 kevin Exp $
+** $Id: scanner.cpp,v 1.36 2001/03/11 15:27:30 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
if (m_idGeometry == GEOMETRY_PARALLEL) {
m_dFanBeamAngle = 0;
m_detLen = m_dScanDiameter;
+ m_detStart = -m_detLen / 2;
m_detInc = m_detLen / m_nDet;
double dDetectorArrayEndOffset = 0;
// For even number of detectors, make detInc slightly larger so that center lies
m_initPos.xd2 = m_dXCenter + dHalfDetLen + dDetectorArrayEndOffset;
m_initPos.yd2 = m_dYCenter - m_dCenterDetectorLength;
m_initPos.angle = 0.0;
+ m_detLen += dDetectorArrayEndOffset;
} else if (m_idGeometry == GEOMETRY_EQUILINEAR) {
if (m_dScanDiameter / 2 >= m_dFocalLength) {
m_fail = true;
const double dHalfDetLen = m_dSourceDetectorLength * tan (dAngle);
m_detLen = dHalfDetLen * 2;
+ m_detStart = -dHalfDetLen;
m_detInc = m_detLen / m_nDet;
double dDetectorArrayEndOffset = 0;
if (m_nDet % 2 == 0) { // Adjust for Even number of detectors
m_detInc = m_detLen / (m_nDet - 1); // center detector = (nDet/2)
dDetectorArrayEndOffset = m_detInc;
+ m_detLen += dDetectorArrayEndOffset;
}
m_dFanBeamAngle = dAngle * 2;
const double dAngle = asin ((m_dScanDiameter / 2) / m_dFocalLength);
m_detLen = 2 * dAngle;
+ m_detStart = -dAngle;
m_detInc = m_detLen / m_nDet;
double dDetectorArrayEndOffset = 0;
if (m_nDet % 2 == 0) { // Adjust for Even number of detectors
m_detInc = m_detLen / (m_nDet - 1); // center detector = (nDet/2)
dDetectorArrayEndOffset = m_detInc;
}
+ // adjust for center-detector length
double dA1 = acos ((m_dScanDiameter / 2) / m_dCenterDetectorLength);
double dAngularScale = 2 * (HALFPI + dAngle - dA1) / m_detLen;
+
m_dAngularDetLen = dAngularScale * (m_detLen + dDetectorArrayEndOffset);
m_dAngularDetIncrement = dAngularScale * m_detInc;
m_initPos.dAngularDet = -m_dAngularDetLen / 2;
m_initPos.ys1 = m_dYCenter + m_dFocalLength;;
m_initPos.xs2 = m_dXCenter;
m_initPos.ys2 = m_dYCenter + m_dFocalLength;
+ m_detLen += dDetectorArrayEndOffset;
}
// Calculate incrementatal rotation matrix
traceShowParam ("Num Views:", "%d", PROJECTION_TRACE_ROW_NVIEW, C_BLUE, proj.nView());
traceShowParam ("Samples / Ray:", "%d", PROJECTION_TRACE_ROW_SAMPLES, C_BLUE, m_nSample);
- m_pSGP->setMarker (SGP::MARK_BDIAMOND, C_LTGREEN);
+ m_pSGP->setMarker (SGP::MARKER_BDIAMOND);
}
#endif