** This is part of the CTSim program
** Copyright (C) 1983-2000 Kevin Rosenberg
**
-** $Id: scanner.cpp,v 1.2 2000/06/25 17:32:24 kevin Exp $
+** $Id: scanner.cpp,v 1.11 2000/08/25 15:59:13 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 Scanner::GEOMETRY_INVALID = -1;
+const int Scanner::GEOMETRY_PARALLEL = 0;
+const int Scanner::GEOMETRY_EQUILINEAR = 1;
+const int Scanner::GEOMETRY_EQUIANGULAR = 2;
+
+const char* Scanner::s_aszGeometryName[] =
+{
+ {"parallel"},
+ {"equilinear"},
+ {"equiangular"},
+};
+
+const char* Scanner::s_aszGeometryTitle[] =
+{
+ {"Parallel"},
+ {"Equilinear"},
+ {"Equiangular"},
+};
+
+const int Scanner::s_iGeometryCount = sizeof(s_aszGeometryName) / sizeof(const char*);
+
+
// NAME
// DetectorArray Construct a DetectorArray
* int nSample Number of rays per detector
*/
-Scanner::Scanner (const Phantom& phm, const char* const geometryName, int nDet, int nView, int nSample, const double rot_anglen)
+Scanner::Scanner (const Phantom& phm, const char* const geometryName, int nDet, int nView, int nSample, const double rot_anglen, const double dFocalLengthRatio, const double dFieldOfViewRatio)
{
m_phmLen = phm.maxAxisLength(); // maximal length along an axis
m_nSample = 1;
if (nDet < 1)
nDet = 1;
- if ((nDet % 2) == 0)
- ++nDet; // ensure odd number of detectors
+ // if ((nDet % 2) == 0)
+ // ++nDet; // ensure odd number of detectors
m_nDet = nDet;
m_nView = nView;
m_nSample = nSample;
- m_detLen = SQRT2 * m_phmLen * ((m_nDet + N_EXTRA_DETECTORS) / static_cast<double>(m_nDet));
-
- m_rotLen = rot_anglen;
-
- m_radius = m_detLen / 2;
- m_detInc = m_detLen / m_nDet;
- m_rotInc = m_rotLen / m_nView;
-
- m_initPos.xd1 = m_detLen / 2;
- m_initPos.yd1 = -m_detLen / 2;
- m_initPos.xd2 = m_detLen / 2;
- m_initPos.yd2 = m_detLen / 2;
- m_initPos.xs1 = -m_detLen / 2;
- m_initPos.ys1 = -m_detLen / 2;
- m_initPos.xs2 = -m_detLen / 2;
- m_initPos.ys2 = m_detLen / 2;
- m_initPos.angle = 0.0;
+ m_dFocalLength = (m_phmLen * SQRT2 / 2) * dFocalLengthRatio;
+ m_dFieldOfView = m_phmLen * SQRT2 * dFieldOfViewRatio;
+
+ if (m_idGeometry == GEOMETRY_PARALLEL) {
+ m_detLen = m_dFieldOfView;
+ m_detInc = m_detLen / m_nDet;
+ m_rotLen = rot_anglen;
+ m_rotInc = m_rotLen / m_nView;
+
+ double dHalfDetLen = m_detLen / 2;
+ m_initPos.xs1 = -m_dFocalLength;
+ m_initPos.ys1 = -dHalfDetLen;
+ m_initPos.xs2 = -m_dFocalLength;
+ m_initPos.ys2 = dHalfDetLen;
+ m_initPos.xd1 = m_dFocalLength;
+ m_initPos.yd1 = -dHalfDetLen;
+ m_initPos.xd2 = m_dFocalLength;
+ m_initPos.yd2 = dHalfDetLen;
+ m_initPos.angle = 0.0;
+ } else if (m_idGeometry == GEOMETRY_EQUILINEAR) {
+ double dHalfSquare = m_phmLen / 2;
+ double dFocalPastPhm = m_dFocalLength - dHalfSquare;
+ if (dFocalPastPhm <= 0.) {
+ m_fail = true;
+ m_failMessage = "Focal Point inside of phantom";
+ return;
+ }
+ double dAngle = atan( dHalfSquare / dFocalPastPhm );
+ double dHalfDetLen = 2 * m_dFocalLength * tan (dAngle);
+
+ m_detLen = dHalfDetLen * 2;
+ m_detInc = m_detLen / m_nDet;
+ m_rotLen = rot_anglen;
+ m_rotInc = m_rotLen / m_nView;
+
+ m_initPos.xs1 = -m_dFocalLength;
+ m_initPos.ys1 = 0;
+ m_initPos.xs2 = -m_dFocalLength;
+ m_initPos.ys2 = 0;
+ m_initPos.xd1 = m_dFocalLength;
+ m_initPos.yd1 = -dHalfDetLen;
+ m_initPos.xd2 = m_dFocalLength;
+ m_initPos.yd2 = dHalfDetLen;
+ m_initPos.angle = 0.0;
+ } else if (m_idGeometry == GEOMETRY_EQUIANGULAR) {
+ double dHalfSquare = m_phmLen / 2;
+ double dFocalPastPhm = m_dFocalLength - dHalfSquare;
+ if (dFocalPastPhm <= 0.) {
+ m_fail = true;
+ m_failMessage = "Focal Point inside of phantom";
+ return;
+ }
+ double dAngle = atan( dHalfSquare / dFocalPastPhm );
+ m_detLen = dAngle * 2;
+ }
}
Scanner::~Scanner (void)
}
-Scanner::GeometryID
-Scanner::convertGeometryNameToID (const char* const geometryName)
+const char*
+Scanner::convertGeometryIDToName (const int geomID)
+{
+ const char *name = "";
+
+ if (geomID >= 0 && geomID < s_iGeometryCount)
+ return (s_aszGeometryName[geomID]);
+
+ return (name);
+}
+
+const char*
+Scanner::convertGeometryIDToTitle (const int geomID)
{
- GeometryID geometryID = GEOMETRY_INVALID;
+ const char *title = "";
- if (strcasecmp (geometryName, GEOMETRY_PARALLEL_STR) == 0)
- geometryID = GEOMETRY_PARALLEL;
- else if (strcasecmp (geometryName, GEOMETRY_EQUILINEAR_STR) == 0)
- geometryID = GEOMETRY_EQUILINEAR;
- else if (strcasecmp (geometryName, GEOMETRY_EQUIANGLE_STR) == 0)
- geometryID = GEOMETRY_EQUIANGLE;
+ if (geomID >= 0 && geomID < s_iGeometryCount)
+ return (s_aszGeometryName[geomID]);
- return (geometryID);
+ return (title);
}
+
+int
+Scanner::convertGeometryNameToID (const char* const geomName)
+{
+ int id = GEOMETRY_INVALID;
+ for (int i = 0; i < s_iGeometryCount; i++)
+ if (strcasecmp (geomName, s_aszGeometryName[i]) == 0) {
+ id = i;
+ break;
+ }
+ return (id);
+}
+
/* NAME
- * raysum_collect Calculate ray sums for a Phantom
+ * collectProjections Calculate projections for a Phantom
*
* SYNOPSIS
- * rs = raysum_collect (det, phm, start_view, trace, unit_pulse)
- * Scanner& det Scanner specifications**
- * RAYSUM *rs Calculated ray sum matrix
- * Phantom& phm Phantom we are taking ray sums of
- * int trace Boolean flag to signal ray sum tracing
+ * collectProjections (proj, phm, start_view, nView, bStoreViewPos, trace)
+ * Projectrions& proj Projection storage
+ * Phantom& phm Phantom for which we collect projections
+ * bool bStoreViewPos TRUE then storage proj at normal view position
+ * int trace Trace level
*/
+
+void
+Scanner::collectProjections (Projections& proj, const Phantom& phm, const int trace, SGP* pSGP)
+{
+ collectProjections (proj, phm, 0, proj.nView(), true, trace, pSGP);
+}
+
void
-Scanner::collectProjections (Projections& proj, const Phantom& phm, const int start_view, const int trace)
+Scanner::collectProjections (Projections& proj, const Phantom& phm, const int iStartView, const int iNumViews, bool bStoreAtViewPosition, const int trace, SGP* pSGP)
{
GRFMTX_2D rotmtx_initial, temp;
GRFMTX_2D rotmtx_incr;
- double start_angle = start_view * proj.rotInc();
+ double start_angle = iStartView * proj.rotInc();
double xcent = phm.xmin() + (phm.xmax() - phm.xmin()) / 2;
double ycent = phm.ymin() + (phm.ymax() - phm.ymin()) / 2;
m_trace = trace;
-#ifdef HAVE_SGP
- SGP_ID gid;
- if (m_trace >= TRACE_PHM) {
- double wsize = 1.42 * m_phmLen / 2; /* sqrt(2) * radius */
-
- gid = sgp2_init (512, 512, "RayCollect");
- sgp2_color (C_LTBLUE);
- sgp2_window (xcent - wsize, ycent - wsize, xcent + wsize, ycent + wsize);
- sgp2_color (C_BROWN);
-#if RADIUS
- sgp2_draw_circle (m_phmLen / 2);
-#else
- sgp2_draw_rect (xcent - m_phmLen / 2, ycent - m_phmLen / 2,
- xcent + m_phmLen / 2, ycent + m_phmLen / 2);
-#endif
- sgp2_color (C_BROWN);
- sgp2_move_abs (0., 0.);
- sgp2_draw_circle (wsize);
- // raysum_trace_menu_column = (crt->xsize * crt->asp) / 8 + 3;
- traceShowParam ("X-Ray Simulator", "%s", RAYSUM_TRACE_ROW_TITLE, 8+C_LTWHITE, " ");
- traceShowParam ("---------------", "%s", RAYSUM_TRACE_ROW_TITLE2, 8+C_LTWHITE, " ");
- traceShowParam ("Phantom:", "%s", RAYSUM_TRACE_ROW_PHANT_ID, C_YELLOW, " Herman");
- traceShowParam ("Chomaticity :", "%s", RAYSUM_TRACE_ROW_CHROMATIC, C_LTGREEN, "Mono");
- traceShowParam ("Scatter :", "%5.1f", RAYSUM_TRACE_ROW_SCATTER, C_LTGREEN, 0.);
- traceShowParam ("Photon Uncert:", "%5.1f", RAYSUM_TRACE_ROW_PHOT_STAT, C_LTGREEN, 0.);
- traceShowParam ("Num Scanners:", "%5d", RAYSUM_TRACE_ROW_NDET, C_LTRED, proj.nDet());
- traceShowParam ("Num Views :", "%5d", RAYSUM_TRACE_ROW_NVIEW, C_LTRED, proj.nView());
- traceShowParam ("Samples / Ray:", "%5d", RAYSUM_TRACE_ROW_SAMPLES, C_LTRED, m_nSample);
-
- sgp2_color (C_LTGREEN);
- phm.draw();
-
- initmarker (BDIAMOND, 129);
- }
-#endif
-
/* Calculate initial rotation matrix */
xlat_mtx2 (rotmtx_initial, -xcent, -ycent);
rot_mtx2 (temp, start_angle);
int iview;
double viewAngle;
- for (iview = 0, viewAngle = start_angle; iview < proj.nView(); iview++, viewAngle += proj.rotInc()) {
- DetectorArray& detArray = proj.getDetectorArray( iview );
+ for (iview = 0, viewAngle = start_angle; iview < iNumViews; iview++, viewAngle += proj.rotInc()) {
+ int iStoragePosition = iview;
+ if (bStoreAtViewPosition)
+ iStoragePosition += iStartView;
+
+ DetectorArray& detArray = proj.getDetectorArray( iStoragePosition );
+
+#ifdef HAVE_SGP
+ if (pSGP && m_trace >= TRACE_PHM) {
+ pSGP->eraseWindow();
+ double dWindowSize = max(m_detLen, m_dFocalLength * 2) * SQRT2;
+ double dHalfWindowSize = dWindowSize / 2;
+ double dHalfPhmLen = m_phmLen / 2;
+
+ pSGP->setRasterOp (RO_SET);
+ pSGP->eraseWindow ();
+ pSGP->setWindow (xcent - dHalfWindowSize, ycent - dHalfWindowSize, xcent + dHalfWindowSize, ycent + dHalfWindowSize);
+ pSGP->setColor (C_BROWN);
+ pSGP->moveAbs (0., 0.);
+ pSGP->drawRect (xcent - dHalfPhmLen, ycent - dHalfPhmLen, xcent + dHalfPhmLen, ycent + dHalfPhmLen);
+
+#if 0
+ traceShowParam (pSGP, "X-Ray Simulator", "%s", RAYSUM_TRACE_ROW_TITLE, C_BLACK, " ");
+ traceShowParam (pSGP, "---------------", "%s", RAYSUM_TRACE_ROW_TITLE2, C_BLACK, " ");
+ traceShowParam (pSGP, "Phantom:", "%s", RAYSUM_TRACE_ROW_PHANT_ID, C_YELLOW, " Herman");
+ traceShowParam (pSGP, "Chomaticity :", "%s", RAYSUM_TRACE_ROW_CHROMATIC, C_LTGREEN, "Mono");
+ traceShowParam (pSGP, "Scatter :", "%5.1f", RAYSUM_TRACE_ROW_SCATTER, C_LTGREEN, 0.);
+ traceShowParam (pSGP, "Photon Uncert:", "%5.1f", RAYSUM_TRACE_ROW_PHOT_STAT, C_LTGREEN, 0.);
+ traceShowParam (pSGP, "Num Detectors:", "%5d", RAYSUM_TRACE_ROW_NDET, C_LTRED, proj.nDet());
+ traceShowParam (pSGP, "Num Views :", "%5d", RAYSUM_TRACE_ROW_NVIEW, C_LTRED, proj.nViews());
+ traceShowParam (pSGP, "Samples / Ray:", "%5d", RAYSUM_TRACE_ROW_SAMPLES, C_LTRED, m_nSample);
+#endif
+
+ pSGP->setColor (C_RED);
+ phm.draw (*pSGP);
+
+ pSGP->setMarker (SGP::MARK_BDIAMOND, C_LTGREEN);
+ }
+#endif
#ifdef HAVE_SGP
- if (m_trace >= TRACE_PHM) {
- sgp2_move_abs (xd1, yd1);
- sgp2_line_abs (xd2, yd2);
- sgp2_move_abs (xs1, ys1);
- sgp2_line_abs (xs2, ys2);
+ if (pSGP && m_trace >= TRACE_PHM) {
+ pSGP->setRasterOp (RO_XOR);
+ pSGP->setColor (C_RED);
+ pSGP->moveAbs (xd1, yd1);
+ pSGP->lineAbs (xd2, yd2);
+ pSGP->moveAbs (xs1, ys1);
+ pSGP->lineAbs (xs2, ys2);
+ pSGP->setRasterOp (RO_SET);
}
+ if (m_trace >= TRACE_TEXT)
+ traceShowParam (pSGP, "Current View :", "%5d", RAYSUM_TRACE_ROW_CURR_VIEW, C_LTMAGENTA, iview);
#endif
- if (m_trace)
- traceShowParam ("Current View :", "%5d", RAYSUM_TRACE_ROW_CURR_VIEW, C_LTMAGENTA, iview);
- projectSingleView (phm, detArray, xd1, yd1, xd2, yd2, xs1, ys1, xs2, ys2);
+ projectSingleView (phm, detArray, xd1, yd1, xd2, yd2, xs1, ys1, xs2, ys2, pSGP);
detArray.setViewAngle (viewAngle);
#ifdef HAVE_SGP
- if (m_trace >= TRACE_PHM) {
+ if (pSGP && m_trace >= TRACE_PHM) {
// rs_plot (detArray, xd1, yd1, xcent, ycent, theta);
- sgp2_move_abs (xd1, yd1);
- sgp2_line_abs (xd2, yd2);
- sgp2_move_abs (xs1, ys1);
- sgp2_line_abs (xs2, ys2);
+ pSGP->setColor (C_RED);
+ pSGP->setRasterOp (RO_XOR);
+ pSGP->moveAbs (xd1, yd1);
+ pSGP->lineAbs (xd2, yd2);
+ pSGP->moveAbs (xs1, ys1);
+ pSGP->lineAbs (xs2, ys2);
+ pSGP->setRasterOp (RO_SET);
}
#endif
xform_mtx2 (rotmtx_incr, xd1, yd1); // rotate detector endpoints
*/
void
-Scanner::projectSingleView (const Phantom& phm, DetectorArray& detArray, const double xd1, const double yd1, const double xd2, const double yd2, const double xs1, const double ys1, const double xs2, const double ys2)
+Scanner::projectSingleView (const Phantom& phm, DetectorArray& detArray, const double xd1, const double yd1, const double xd2, const double yd2, const double xs1, const double ys1, const double xs2, const double ys2, SGP* pSGP)
{
double ddx = (xd2 - xd1) / detArray.nDet(); // change in coords between detectors
double ddy = (yd2 - yd1) / detArray.nDet();
double xs = xs_maj;
double ys = ys_maj;
double sum = 0.0;
- for (int i = 0; i < m_nSample; i++) {
+ for (unsigned int i = 0; i < m_nSample; i++) {
#ifdef HAVE_SGP
- if (m_trace >= TRACE_RAYS) {
- sgp2_move_abs (xs, ys);
- sgp2_line_abs (xd, yd);
+ if (pSGP && m_trace >= TRACE_RAYS) {
+ pSGP->setColor (C_LTBLUE);
+ pSGP->setRasterOp (RO_XOR);
+ pSGP->moveAbs (xs, ys);
+ pSGP->lineAbs (xd, yd);
+ pSGP->setRasterOp (RO_SET);
}
#endif
- sum += projectSingleLine (phm, xd, yd, xs, ys);
+ sum += projectSingleLine (phm, xd, yd, xs, ys, pSGP);
- if (m_trace >= TRACE_RAYS)
- traceShowParam ("Attenuation :", "%5.2f", RAYSUM_TRACE_ROW_ATTEN, C_LTMAGENTA, "sum");
-
#ifdef HAVE_SGP
if (m_trace >= TRACE_RAYS) {
- sgp2_move_abs (xs, ys);
- sgp2_line_abs (xd, yd);
+ traceShowParam (pSGP, "Attenuation :", "%5.2f", RAYSUM_TRACE_ROW_ATTEN, C_LTMAGENTA, sum);
+ }
+
+ if (pSGP && m_trace >= TRACE_RAYS) {
+ pSGP->setColor (C_LTBLUE);
+ pSGP->setRasterOp (RO_XOR);
+ pSGP->moveAbs (xs, ys);
+ pSGP->lineAbs (xd, yd);
+ pSGP->setRasterOp (RO_SET);
}
#endif
xd += ddx2;
void
-Scanner::traceShowParam (const char *label, const char *fmt, int row, int color, ...)
+Scanner::traceShowParam (SGP* pSGP, const char *label, const char *fmt, int row, int color, ...)
{
- char s[80];
+ char s[256];
va_list arg;
va_start(arg, color);
- // cio_set_cpos (raysum_trace_menu_column, row);
snprintf (s, sizeof(s), label, "%s");
- // cio_set_text_clr (color - 8, 0);
- cio_put_str (s);
+ string strOut(s);
vsnprintf (s, sizeof(s), fmt, arg);
+ strOut += s;
+
+ // cio_set_cpos (raysum_trace_menu_column, row);
+ // cio_set_text_clr (color - 8, 0);
// cio_set_text_clr (color, 0);
- cio_put_str (s);
+
+ if (pSGP) {
+ pSGP->moveAbs (0., row * 0.04);
+ pSGP->setTextColor (color, -1);
+ pSGP->drawText (strOut);
+ } else {
+ cio_put_str (strOut.c_str());
+ cio_put_str ("\n");
+ }
va_end(arg);
}
*/
double
-Scanner::projectSingleLine (const Phantom& phm, const double x1, const double y1, const double x2, const double y2)
+Scanner::projectSingleLine (const Phantom& phm, const double x1, const double y1, const double x2, const double y2, SGP* pSGP)
{
// check ray against each pelem in Phantom
double rsum = 0.0;
for (PElemConstIterator i = phm.listPElem().begin(); i != phm.listPElem().end(); i++)
- rsum += projectLineAgainstPElem (**i, x1, y1, x2, y2);
+ rsum += projectLineAgainstPElem (**i, x1, y1, x2, y2, pSGP);
return (rsum);
}
*/
double
-Scanner::projectLineAgainstPElem (const PhantomElement& pelem, double x1, double y1, double x2, double y2)
+Scanner::projectLineAgainstPElem (const PhantomElement& pelem, double x1, double y1, double x2, double y2, SGP* pSGP)
{
if (! pelem.clipLineWorldCoords (x1, y1, x2, y2)) {
if (m_trace == TRACE_CLIPPING)
}
#ifdef HAVE_SGP
- if (m_trace == TRACE_CLIPPING) {
- sgp2_move_abs (x1, y1);
- sgp2_line_abs (x2, y2);
+ if (pSGP && m_trace == TRACE_CLIPPING) {
+ pSGP->setRasterOp (RO_XOR);
+ pSGP->moveAbs (x1, y1);
+ pSGP->lineAbs (x2, y2);
cio_tone (8000., 0.05);
- sgp2_move_abs (x1, y1);
- sgp2_line_abs (x2, y2);
+ pSGP->moveAbs (x1, y1);
+ pSGP->lineAbs (x2, y2);
+ pSGP->setRasterOp (RO_SET);
}
#endif
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