** This is part of the CTSim program
** Copyright (C) 1983-2000 Kevin Rosenberg
**
-** $Id: ct.h,v 1.13 2000/06/10 23:00:17 kevin Exp $
+** $Id: ct.h,v 1.18 2000/06/19 17:58:20 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 "png.h"
#endif
#ifdef HAVE_G2_H
- #ifdef __cplusplus
- extern "C" {
- #include "g2.h"
- }
- #else
- #include "g2.h"
- #endif
- #ifdef HAVE_X11
- #ifdef __cplusplus
- extern "C" {
- #include "g2_X11.h"
- }
- #else
- #include "g2_X11.h"
- #endif
- #endif
+extern "C" {
+#include "g2.h"
+}
+#ifdef HAVE_X11
+extern "C" {
+#include "g2_X11.h"
+}
+#endif
#endif
#ifdef HAVE_STDIO_H
#include <stdio.h>
#include "kmath.h"
#include "keyboard.h"
#include "cio.h"
+#include "byteorder.h"
#ifdef HAVE_SGP
#include "ezplot.h"
#include "sgp.h"
#endif
+#include <fstream>
#include <iostream>
+#include <sstream>
#include <string>
+#include <iterator>
+#include <algorithm>
+#include <exception>
+#include <stdexcept>
using namespace std;
#include "array2d.h"
#include "imagefile.h"
-#include "ir.h"
+#include "phantom.h"
+#include "projections.h"
+#include "scanner.h"
+
+//----------------------------------------------------------------------//
+// USER SYMBOLS //
+//----------------------------------------------------------------------//
+
+// Filter types
+static const char O_FILTER_ABS_BANDLIMIT_STR[]= "abs_bandlimit";
+static const char O_FILTER_ABS_SINC_STR[]= "abs_sinc";
+static const char O_FILTER_ABS_COS_STR[]= "abs_cos";
+static const char O_FILTER_ABS_HAMMING_STR[]= "abs_hamming";
+static const char O_FILTER_SHEPP_STR[]= "shepp";
+static const char O_FILTER_BANDLIMIT_STR[]= "bandlimit";
+static const char O_FILTER_SINC_STR[]= "sinc";
+static const char O_FILTER_COS_STR[]= "cos";
+static const char O_FILTER_HAMMING_STR[]= "hamming";
+static const char O_FILTER_TRIANGLE_STR[]= "triangle";
+
+typedef enum {
+ FILTER_BANDLIMIT,
+ FILTER_SINC,
+ FILTER_G_HAMMING,
+ FILTER_COSINE,
+ FILTER_TRIANGLE,
+ FILTER_ABS_BANDLIMIT, // filter times |x|
+ FILTER_ABS_SINC,
+ FILTER_ABS_G_HAMMING,
+ FILTER_ABS_COSINE,
+ FILTER_SHEPP
+} FilterType;
+
+
+// Function domains
+static const char D_FREQ_STR[]= "freq";
+static const char D_SPATIAL_STR[]= "spatial";
+
+typedef enum {
+ D_FREQ = 1,
+ D_SPATIAL
+} DomainType;
+
+
+/* interpolation methods */
+static const char O_INTERP_NEAREST_STR[]= "nearest";
+static const char O_INTERP_LINEAR_STR[]= "linear";
+static const char O_INTERP_BSPLINE_STR[]= "bspline";
+
+#undef HAVE_BSPLINE_INTERP
+typedef enum { // Interpolation methods
+ I_NEAREST = 1, // Nearest neighbor
+#if HAVE_BSPLINE_INTERP
+ I_BSPLINE,
+ I_1BSPLINE, // 1st order B-Spline
+ I_2BSPLINE,
+ I_3BSPLINE,
+#endif
+ I_LINEAR // Linear interpolation
+} InterpolationType;
+
+
+// Trace levels
+static const char O_TRACE_NONE_STR[]= "none";
+static const char O_TRACE_TEXT_STR[]= "text";
+static const char O_TRACE_PHM_STR[]= "phm";
+static const char O_TRACE_RAYS_STR[]= "rays";
+static const char O_TRACE_PLOT_STR[]= "plot";
+static const char O_TRACE_CLIPPING_STR[]= "clipping";
+
+enum {
+ TRACE_NONE, /* No tracing */
+ TRACE_TEXT, /* Minimal status */
+ TRACE_PHM, /* Show phantom */
+ TRACE_RAYS, /* Show all rays */
+ TRACE_PLOT, /* Plot raysums */
+ TRACE_CLIPPING /* Plot clipping */
+};
+
+// Standard phantomsa
+static const char O_PHM_HERMAN_STR[]= "herman";
+static const char O_PHM_ROWLAND_STR[]= "rowland";
+static const char O_PHM_BROWLAND_STR[]= "browland";
+static const char O_PHM_UNITPULSE_STR[]= "unitpulse";
+typedef enum {
+ O_PHM_HERMAN, /* Herman head phantom */
+ O_PHM_ROWLAND, /* Rowland head phantom */
+ O_PHM_BROWLAND, /* Bordered Rowland head phantom */
+ O_PHM_UNITPULSE /* Unit pulse phantom */
+} PhantomType;
+
+// Backproject types
+static const char O_BPROJ_TRIG_STR[]= "trig";
+static const char O_BPROJ_TABLE_STR[]= "table";
+static const char O_BPROJ_DIFF_STR[]= "diff";
+static const char O_BPROJ_DIFF2_STR[]= "diff2";
+static const char O_BPROJ_IDIFF2_STR[]= "idiff2";
+
+typedef enum {
+ O_BPROJ_TRIG,
+ O_BPROJ_TABLE,
+ O_BPROJ_DIFF,
+ O_BPROJ_DIFF2,
+ O_BPROJ_IDIFF2
+} BackprojType;
+
+// Convolution symmetries
+typedef enum {
+ FUNC_EVEN = 1, // function types, f[-n] = f[n]
+ FUNC_ODD, // f[-n] = -f[n]
+ FUNC_BOTH // function has both odd & even components
+} FunctionSymmetry;
+
+
+
#include "backprojectors.h"
+/*************************************************************************
+ * FUNCTION DECLARATIONS
+ ************************************************************************/
+
+// convolve.cpp
+double convolve (const double f1[], const double f2[], const double dx, const int n, const int np, const FunctionSymmetry func_type);
+
+// dialogs.cpp
+bool phm_add_pelem_kb (Phantom& phm);
+const Phantom& phm_select (Phantom& phm);
+int interpolation_select (void);
+int filter_select (double *filter_param);
+
+// filter.cpp
+double *filter_generate (const FilterType filt_type, double bw, double xmin, double xmax, int n, double param, const DomainType domain, int numint);
+double filter_spatial_response_calc (int filt_type, double x, double bw, double param, int n);
+double filter_spatial_response_analytic (int filt_type, double x, double bw, double param);
+double filter_frequency_response (int filt_type, double u, double bw, double param);
+double sinc (double x, double mult);
+double integral_abscos(double u, double w);
+
+// options.cpp
+int opt_set_trace(const char *optarg);
+const char *name_of_phantom(const int phmid);
+int opt_set_phantom(const char *optarg);
+InterpolationType opt_set_interpolation(const char *optarg);
+const char *name_of_interpolation(int interp_type);
+FilterType opt_set_filter(const char *optarg);
+const char *name_of_filter(const int filter);
+DomainType opt_set_filter_domain(const char *optarg);
+const char *name_of_filter_domain(const DomainType domain);
+BackprojType opt_set_backproj(const char *optarg);
+const char *name_of_backproj(const BackprojType backproj);
+
+// From phm2image.cpp
+void phm_to_imagefile (const Phantom& phm, ImageFile& im, const int col_start, const int col_count, const int nsample, const int trace);
+
+// image.cpp
+void image_filter_response(ImageFile& im, const DomainType domain, double bw, const FilterType filt_type, double filt_param, const int opt_trace);
+int image_display (const ImageFile& im);
+int image_display_scale (const ImageFile& im, const int scale, const double pmin, const double pmax);
+
+// From reconstr.cpp
+ImageFile& proj_reconst (ImageFile& im, Projections& rs, const FilterType filt_type, double filt_param, InterpolationType interp_type, int interp_param, const BackprojType backproj_type, int const ir_trace);
+
#endif