+/*****************************************************************************
+** FILE IDENTIFICATION
+**
+** Name: phm2pj.cpp
+** Purpose: Take projections of a phantom object
+** Programmer: Kevin Rosenberg
+** Date Started: 1984
+**
+** This is part of the CTSim program
+** Copyright (C) 1983-2000 Kevin Rosenberg
+**
+** $Id: phm2pj.cpp,v 1.1 2000/06/17 20:12:15 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
+** published by the Free Software Foundation.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+******************************************************************************/
+
+#include "ct.h"
+#include "timer.h"
+
+
+enum { O_PHANTOM, O_DESC, O_NRAY, O_ROTANGLE, O_PHMFILE,
+ O_TRACE, O_VERBOSE, O_HELP, O_DEBUG, O_VERSION };
+
+static struct option phm2pj_options[] =
+{
+ {"phantom", 1, 0, O_PHANTOM},
+ {"phmfile", 1, 0, O_PHMFILE},
+ {"desc", 1, 0, O_DESC},
+ {"nray", 1, 0, O_NRAY},
+ {"rotangle", 1, 0, O_ROTANGLE},
+ {"trace", 1, 0, O_TRACE},
+ {"verbose", 0, 0, O_VERBOSE},
+ {"help", 0, 0, O_HELP},
+ {"debug", 0, 0, O_DEBUG},
+ {"version", 0, 0, O_VERSION},
+ {0, 0, 0, 0}
+};
+
+
+void
+phm2pj_usage (const char *program)
+{
+ cout << "usage: " << fileBasename(program) << " outfile ndet nview [--phantom phantom-name] [--phmfile filename] [OPTIONS]" << endl;
+ cout << "Calculate (projections) through phantom object, either a predefined --phantom or a --phmfile" << endl;
+ cout << "" << endl;
+ cout << " outfile Name of output file for raysums" << endl;
+ cout << " ndet Number of detectors" << endl;
+ cout << " nview Number of rotated views" << endl;
+ cout << " --phantom Phantom to use for projection" << endl;
+ cout << " herman Herman head phantom" << endl;
+ cout << " rowland Rowland head phantom" << endl;
+ cout << " browland Bordered Rowland head phantom" << endl;
+ cout << " unitpulse Unit pulse phantom" << endl;
+ cout << " --phmfile Get Phantom from phantom file" << endl;
+ cout << " --desc Description of raysum" << endl;
+ cout << " --nray Number of rays per detector (default = 1)" << endl;
+ cout << " --rotangle Degrees to rotate view through, multiple of PI (default = 1)" << endl;
+ cout << " --trace Trace level to use" << endl;
+ cout << " none No tracing (default)" << endl;
+ cout << " text Trace text level" << endl;
+ cout << " phm Trace phantom image" << endl;
+ cout << " rays Trace rays" << endl;
+ cout << " plot Trace plot" << endl;
+ cout << " clipping Trace clipping" << endl;
+ cout << " --verbose Verbose mode" << endl;
+ cout << " --debug Debug mode" << endl;
+ cout << " --version Print version" << endl;
+ cout << " --help Print this help message" << endl;
+}
+
+#ifdef HAVE_MPI
+void GatherProjectionsMPI (MPIWorld& mpiWorld, Projections& pjGlobal, Projections& pjLocal, const int opt_debug);
+#endif
+
+int
+phm2pj_main (int argc, char* argv[])
+{
+ Phantom phm;
+ ScannerGeometry opt_geometry = DETECTOR_PARALLEL;
+ char *opt_outfile = NULL;
+ string opt_desc;
+ string opt_phmfilename;
+ int opt_ndet, opt_nview;
+ int opt_nray = 1;
+ int opt_trace = 0;
+ int opt_phmnum = -1;
+ int opt_verbose = 0;
+ int opt_debug = 0;
+ double opt_rotangle = 1;
+ char* endptr = NULL;
+ char* endstr;
+
+#ifdef HAVE_MPI
+ MPIWorld mpiWorld (argc, argv);
+#endif
+
+ Timer timerProgram;
+
+#ifdef HAVE_MPI
+ if (mpiWorld.getRank() == 0) {
+#endif
+ while (1) {
+ int c = getopt_long(argc, argv, "", phm2pj_options, NULL);
+
+ if (c == -1)
+ break;
+
+ switch (c) {
+ case O_PHANTOM:
+ if ((opt_phmnum = opt_set_phantom (optarg)) < 0) {
+ phm2pj_usage(argv[0]);
+ return (1);
+ }
+ phm.create (opt_phmnum);
+ break;
+ case O_PHMFILE:
+#ifdef HAVE_MPI
+ if (mpiWorld.getRank() == 0)
+ cerr << "Can not read phantom from file in MPI mode" << endl;
+ return (1);
+#endif
+ opt_phmfilename = optarg;
+ phm.createFromFile (opt_phmfilename.c_str());
+ break;
+ case O_VERBOSE:
+ opt_verbose = 1;
+ break;
+ case O_DEBUG:
+ opt_debug = 1;
+ break;
+ break;
+ case O_TRACE:
+ if ((opt_trace = opt_set_trace(optarg)) < 0) {
+ phm2pj_usage(argv[0]);
+ return (1);
+ }
+ break;
+ case O_DESC:
+ opt_desc = optarg;
+ break;
+ case O_ROTANGLE:
+ opt_rotangle = strtod(optarg, &endptr);
+ endstr = optarg + strlen(optarg);
+ if (endptr != endstr) {
+ cerr << "Error setting --rotangle to " << optarg << endl;
+ phm2pj_usage(argv[0]);
+ return (1);
+ }
+ break;
+ case O_NRAY:
+ opt_nray = strtol(optarg, &endptr, 10);
+ endstr = optarg + strlen(optarg);
+ if (endptr != endstr) {
+ cerr << "Error setting --nray to %s" << optarg << endl;
+ phm2pj_usage(argv[0]);
+ return (1);
+ }
+ break;
+ case O_VERSION:
+#ifdef VERSION
+ cout << "Version: " << VERSION << endl;
+#else
+ cout << "Unknown version number" << endl;
+#endif
+ exit(0);
+ case O_HELP:
+ case '?':
+ phm2pj_usage(argv[0]);
+ return (0);
+ default:
+ phm2pj_usage(argv[0]);
+ return (1);
+ }
+ }
+
+ if (phm.nPElem() == 0) {
+ cerr << "No phantom defined" << endl;
+ phm2pj_usage(argv[0]);
+ return (1);
+ }
+ if (optind + 3 != argc) {
+ phm2pj_usage(argv[0]);
+ return (1);
+ }
+
+ opt_outfile = argv[optind];
+ opt_ndet = strtol(argv[optind+1], &endptr, 10);
+ endstr = argv[optind+1] + strlen(argv[optind+1]);
+ if (endptr != endstr) {
+ cerr << "Error setting --ndet to " << argv[optind+1] << endl;
+ phm2pj_usage(argv[0]);
+ return (1);
+ }
+ opt_nview = strtol(argv[optind+2], &endptr, 10);
+ endstr = argv[optind+2] + strlen(argv[optind+2]);
+ if (endptr != endstr) {
+ cerr << "Error setting --nview to " << argv[optind+2] << endl;
+ phm2pj_usage(argv[0]);
+ return (1);
+ }
+
+ ostringstream desc;
+ desc << "Raysum_Collect: NDet=" << opt_ndet << ", Nview=" << opt_nview << ", NRay=" << opt_nray << ", RotAngle=" << opt_rotangle << ", ";
+ if (opt_phmfilename.length()) {
+ desc << "PhantomFile=" << opt_phmfilename;
+ } else if (opt_phmnum != -1) {
+ desc << "Phantom=" << name_of_phantom(opt_phmnum);
+ }
+ if (opt_desc.length()) {
+ desc << ": " << opt_desc;
+ }
+ opt_desc = desc.str();
+#ifdef HAVE_MPI
+ }
+#endif
+
+#ifdef HAVE_MPI
+ mpiWorld.getComm().Bcast (&opt_rotangle, 1, MPI::DOUBLE, 0);
+ mpiWorld.getComm().Bcast (&opt_nview, 1, MPI::INT, 0);
+ mpiWorld.getComm().Bcast (&opt_ndet, 1, MPI::INT, 0);
+ mpiWorld.getComm().Bcast (&opt_nray, 1, MPI::INT, 0);
+ mpiWorld.getComm().Bcast (&opt_phmnum, 1, MPI::INT, 0);
+ mpiWorld.getComm().Bcast (&opt_verbose, 1, MPI::INT, 0);
+ mpiWorld.getComm().Bcast (&opt_debug, 1, MPI::INT, 0);
+ mpiWorld.getComm().Bcast (&opt_trace, 1, MPI::INT, 0);
+
+ if (mpiWorld.getRank() > 0 && opt_phmnum >= 0)
+ phm.create (opt_phmnum);
+#endif
+
+ opt_rotangle *= PI;
+ Scanner scanner (phm, opt_geometry, opt_ndet, opt_nview, opt_nray, opt_rotangle);
+
+#ifdef HAVE_MPI
+ mpiWorld.setTotalWorkUnits (opt_nview);
+
+ Projections pjGlobal;
+ if (mpiWorld.getRank() == 0) {
+ pjGlobal = Projections (scanner);
+ }
+
+ Scanner localScanner (phm, opt_geometry, opt_ndet, mpiWorld.getMyLocalWorkUnits(), opt_nray, opt_rotangle);
+ Projections pjLocal (localScanner);
+ if (opt_debug)
+ cout << "pjLocal->nview = " << pjLocal.nView() << " (process " << mpiWorld.getRank() << ")" << endl;;
+
+ TimerMPI timerProject (mpiWorld.getComm());
+ localScanner.collectProjections (pjLocal, phm, mpiWorld.getMyStartWorkUnit(), opt_trace);
+ if (opt_verbose)
+ timerProject.timerEndAndReport ("Time to collect projections");
+
+ TimerMPI timerGather (mpiWorld.getComm());
+ GatherProjectionsMPI (mpiWorld, pjGlobal, pjLocal, opt_debug);
+ if (opt_verbose)
+ timerGather.timerEndAndReport ("Time to gather projections");
+#else
+ Projections pjGlobal (scanner);
+ scanner.collectProjections (pjGlobal, phm, 0, opt_trace);
+#endif
+
+#ifdef HAVE_MPI
+ if (mpiWorld.getRank() == 0)
+#endif
+ {
+ pjGlobal.setCalcTime (timerProgram.timerEnd());
+ pjGlobal.setRemark (opt_desc);
+ pjGlobal.write (opt_outfile);
+ if (opt_verbose) {
+ phm.print();
+ cout << endl;
+ pjGlobal.printScanInfo();
+ cout << endl;
+ cout << "Remark: " << pjGlobal.remark() << endl;
+ cout << "Run time: " << pjGlobal.calcTime() << " seconds" << endl;
+ }
+ }
+
+ return (0);
+}
+
+
+/* FUNCTION
+ * GatherProjectionsMPI
+ *
+ * SYNOPSIS
+ * Gather's raysums from all processes in pjLocal in pjGlobal in process 0
+ */
+
+#ifdef HAVE_MPI
+void GatherProjectionsMPI (MPIWorld& mpiWorld, Projections& pjGlobal, Projections& pjLocal, const int opt_debug)
+{
+ for (int iw = 0; iw < mpiWorld.getMyLocalWorkUnits(); iw++) {
+ DetectorArray& detArray = pjLocal.getDetectorArray(iw);
+ double viewAngle = detArray.viewAngle();
+ int nDet = detArray.nDet();
+ DetectorValue* detval = detArray.detValues();
+
+ mpiWorld.getComm().Send(&viewAngle, 1, MPI::DOUBLE, 0, 0);
+ mpiWorld.getComm().Send(&nDet, 1, MPI::INT, 0, 0);
+ mpiWorld.getComm().Send(detval, nDet, MPI::FLOAT, 0, 0);
+ }
+
+ if (mpiWorld.getRank() == 0) {
+ for (int iProc = 0; iProc < mpiWorld.getNumProcessors(); iProc++) {
+ for (int iw = mpiWorld.getStartWorkUnit(iProc); iw <= mpiWorld.getEndWorkUnit(iProc); iw++) {
+ MPI::Status status;
+ double viewAngle;
+ int nDet;
+ DetectorArray detArray = pjGlobal.getDetectorArray(iw);
+ DetectorValue* detval = detArray.detValues();
+
+ mpiWorld.getComm().Recv(&viewAngle, 1, MPI::DOUBLE, iProc, 0, status);
+ mpiWorld.getComm().Recv(&nDet, 1, MPI::INT, iProc, 0, status);
+ mpiWorld.getComm().Recv(detval, nDet, MPI::FLOAT, iProc, 0, status);
+ detArray.setViewAngle (viewAngle);
+ }
+ }
+ }
+
+}
+#endif
+
+
+#ifndef NO_MAIN
+int
+main (int argc, char* argv[])
+{
+ return (phm2pj_main(argc, argv));
+}
+#endif
+
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