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root |
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/* |
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* simple main program to illustrate the facilities |
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*/ |
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#include "config.h" |
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#ifdef HAVE_GETOPT_H |
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#include <getopt.h> |
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#else |
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#include "getopt.h" |
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#endif |
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#include <iostream> |
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#include <fstream> |
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#include <cstdio> |
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#include <cstdlib> |
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#include <cstring> |
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#include "lsys.h" |
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#include "interp.h" |
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#include "interface.h" |
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#include "tokens.h" // antlr has problems without! |
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#include "Parser.h" |
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#include "ps_int.h" |
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#include "gl_int.h" |
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#include "rad_int.h" |
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#include "ray_int.h" |
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using namespace std; |
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static struct option options[] = { |
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{ "interface" , required_argument , 0, 'f' }, |
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{ "interpreter" , required_argument , 0, 'i' }, |
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{ "output" , required_argument , 0, 'o' }, |
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{ "show-depth" , required_argument , 0, 'd' }, |
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{ "module" , required_argument , 0, 'm' }, |
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{ "help" , no_argument , 0, 'h' }, |
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{ 0 , 0 , 0, 0 }, |
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}; |
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void usage(int ret) |
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{ |
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cerr << "\n" |
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PACKAGE " version " VERSION ", a l-system exploration system\n" |
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"written by Marc Lehmann <pcg@goof.com> You can find more info at\n" |
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"http://www.plan9.de/ or http://www.goof.com/pcg/marc/lsys.html\n" |
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"\n" |
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"USAGE: lsys [options] sourcefile [min [max [step]]]\n" |
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" where options are:\n" |
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" [ -h | --help ] this help\n" |
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" [ -m | --module string ] use a specific module as seed\n" |
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" [ -i | --interpreter int ] select an interpreter [turtle2d, turtle3d]\n" |
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" [ -f | --interface iface ] select an interface [ps, gl, rad, ray]\n" |
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" [ -d | --show-depth depth ] show evaluated system\n" |
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" [ -o | --output dest ] select an output destination\n" |
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" [ -I | --include path ] search includes also in path\n" |
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"\n"; |
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exit (ret); |
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} |
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int verbose = 0; |
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int main(int argc, char *argv[]) |
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try |
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{ |
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char c; |
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int option_index = 0; |
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gfx_int *iface = 0; |
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interpreter *inter = 0; |
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ostream *ofile = 0; |
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char *outfile_str = 0; |
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char *interpreter_str = "turtle"; |
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char *interface_str = "gl"; |
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char *module_str = 0; |
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double min, max, step; |
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int show_depth = 0; |
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lsys root_lsys; |
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while ((c = getopt_long (argc, argv, "hm:o:I:f:i:d:v", options, &option_index)) != -1) |
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switch (c) |
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{ |
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case 'm': |
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module_str = optarg; |
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break; |
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case 'i': |
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interpreter_str = optarg; |
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break; |
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case 'f': |
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interface_str = optarg; |
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break; |
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case 'o': |
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outfile_str = optarg; |
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break; |
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case 'I': |
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include_dirs.push_back (string (optarg)); |
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break; |
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case 'd': |
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show_depth = atoi (optarg); |
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break; |
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case 'v': |
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verbose++; |
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break; |
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case ':': |
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fprintf (stderr, "required argument missing, try -h for help.\n"); |
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exit (1); |
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case '?': |
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fprintf (stderr, "unknown option, try -h for help.\n"); |
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exit (1); |
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case 'h': |
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default: |
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usage (1); |
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} |
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if (outfile_str) |
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ofile = new ofstream (outfile_str); |
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if (!interface_str) |
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throw error ("you _must_ specify an interface"); |
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else if (strcmp (interface_str, "ps") == 0 |
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|| strcmp (interface_str, "postscript") == 0) |
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ofile |
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? (void) (iface = new ps_int (*ofile)) |
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: throw error ("output file required for postscript interface"); |
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else if (strcmp (interface_str, "rad") == 0 |
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|| strcmp (interface_str, "radiance") == 0) |
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ofile |
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? (void) (iface = new rad_int (*ofile)) |
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: throw error ("output file required for radiance interface"); |
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else if (strcmp (interface_str, "ray") == 0 |
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|| strcmp (interface_str, "rayshade") == 0) |
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ofile |
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? (void) (iface = new ray_int (*ofile)) |
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: throw error ("output file required for rayshade interface"); |
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else if (strcmp (interface_str, "gl") == 0 |
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|| strcmp (interface_str, "opengl") == 0) |
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#if HAVE_OPENGL |
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iface = new gl_int (); |
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#else |
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throw error ("this binary was compiled without opengl support"); |
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#endif |
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else |
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throw error ("unknown interface"); |
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if (!interpreter_str) |
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throw error ("you _must_ specify an interpreter"); |
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else if (strcmp (interpreter_str, "turtle2d") == 0) |
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inter = new turtle_interpreter (*iface, true); |
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else if (strcmp (interpreter_str, "turtle3d") == 0 |
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|| strcmp (interpreter_str, "turtle") == 0) |
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inter = new turtle_interpreter (*iface, false); |
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else |
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throw error ("unknown interface\n"); |
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if (optind >= argc) |
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throw error ("you have to specify at least a source file"); |
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if (optind < argc) |
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parse_file (argv [optind++], root_lsys); |
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if (optind < argc) |
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min = atof (argv [optind++]); |
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else |
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min = 1; |
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if (optind < argc) |
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max = atof (argv [optind++]); |
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else |
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max = 1000; |
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if (optind < argc) |
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step = atof (argv [optind++]); |
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else |
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step = 1; |
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if (verbose) |
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cout << endl |
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<< root_lsys << endl |
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<< "evaluating from " << min << " to " << max << " stepsize " << step << endl; |
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simple_interpreter s_int(show_depth); |
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while (min <= max) |
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{ |
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module seed(module_str ? module_str : root_lsys.str, min); |
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module_vec v(root_lsys (seed.wrap ())); |
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if (verbose) |
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cout << "STEP " << min << ": " << v << endl; |
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s_int (v, root_lsys); |
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(*inter) (v, root_lsys); |
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min += step; |
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} |
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if (inter) delete inter; |
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if (iface) delete iface; |
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if (ofile) delete ofile; |
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return 0; |
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} catch (const error &e) { |
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cerr << e; |
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return 1; |
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} |
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