Esempio n. 1
0
int main(int argc, const char * argv[]) {
    sm_set_program_name(argv[0]);

    const char*input_filename;
    const char*output_pattern_op;

    struct option* ops = options_allocate(3);
    options_string(ops, "in", &input_filename, "stdin", "input file (JSON)");
    options_string(ops, "out", &output_pattern_op, "./ld_split^02d.json", "output pattern; printf() pattern, but write '^' instead of '%'");

    if(!options_parse_args(ops, argc, argv)) {
        fprintf(stderr, "%s : splits a JSON file into many files."
                "\n\nOptions:\n", argv[0]);
        options_print_help(ops, stderr);
        return -1;
    }


    /* Substitute "$" with "%" */

    char output_pattern[256];
    strcpy(output_pattern, output_pattern_op);
    char *f = output_pattern;
    while(*f) {
        if(*f=='^') *f='%';
        f++;
    }

    fputs(output_pattern, stderr);

    FILE * input_stream = open_file_for_reading(input_filename);

    int count = 0;

    JO jo;
    while( (jo = json_read_stream(input_stream)) ) {
        char filename[1000];
        sprintf(filename, output_pattern, count);
        if(!count) {

        }

        sm_debug("Writing to file (%s) %s\n", output_pattern, filename);
        FILE * f = open_file_for_writing(filename);
        if(!f) return -1;
        fputs(json_object_to_json_string(jo), f);
        jo_free(jo);
        fclose(f);

        count++;
    }


    return 0;
}
Esempio n. 2
0
int main(int argc, const char * argv[]) {
	sm_set_program_name(argv[0]);
	
    int period; int phase;
	const char*input_filename;
	const char*output_filename;
	
	struct csm_option* ops = csm_options_allocate(3);
	csm_options_int(ops, "period", &period, 1, "Period of objects to extract.");
	csm_options_int(ops, "phase", &phase, 0, "Phase (=0 starts with the first object)");
	csm_options_string(ops, "in", &input_filename, "stdin", "input file (JSON)");
	csm_options_string(ops, "out", &output_filename, "stdout", "output file (JSON)");
	
	if(!csm_options_parse_args(ops, argc, argv)) {
		fprintf(stderr, "%s : decimates a JSON stream."
			"\n\ncsm_options:\n", argv[0]);
		csm_options_print_help(ops, stderr);
		return -1;
	}
	
	if(period < 1) {
		sm_error("Period must be >= 1.\n");
		return 2;
	}
	
	FILE * input_stream = open_file_for_reading(input_filename);
	FILE *output_stream = open_file_for_writing(output_filename);
	
	if(!input_stream || !output_stream) return -1;
	
	
	int count = 0;
	while(1) { 
		JO jo = json_read_stream(input_stream);
		if(!jo) {
			if(feof(input_stream)) break;
			sm_error("Malformed JSON\n");
			return -1;
		}
		
		if( (count - phase) % period == 0) {
			const char * s = json_object_to_json_string(jo);
			fputs(s,output_stream); fputs("\n",output_stream);
		} 
		
		jo_free(jo);
		count++;
	}
	
	return 0;
}
Esempio n. 3
0
File: crc.c Progetto: DrItanium/moo
/* -------------- Entry Point ----------- */
unsigned long calculate_crc_for_file(
    FileDesc *file)
{
    short refnum;
    unsigned long crc;

    refnum= open_file_for_reading(file);
    if(refnum!=NONE)
    {
        crc= calculate_crc_for_opened_file(refnum);
        close_file(refnum);
    }

    return crc;
}
Esempio n. 4
0
int main(int argc, const char * argv[]) {
	sm_set_program_name(argv[0]);
	
	
	options_banner("ld_purify: Makes sure that the file format is valid. \n * Sets valid=0 if reading is outside interval ");
	
	struct ld_purify_params p;
	
	struct option* ops = options_allocate(20);
	options_double(ops, "threshold_min", &p.threshold_min, 0.01, 
		"Sets valid=0 if readings are less than this threshold.");
	options_double(ops, "threshold_max", &p.threshold_max, 79.0, 
		"Sets valid=0 if readings are more than this threshold.");
	
	options_string(ops, "in", &p.file_input, "stdin", "Input file ");
	options_string(ops, "out", &p.file_output, "stdout", "Output file ");
		
		
	if(!options_parse_args(ops, argc, argv)) {
		options_print_help(ops, stderr);
		return -1;
	}

	FILE * in = open_file_for_reading(p.file_input);
	if(!in) return -3;

	FILE * out = open_file_for_writing(p.file_output);
	if(!out) return -2;



	LDP ld; int count = -1;
	while( (ld = ld_from_json_stream(in))) {
		
		purify(ld, p.threshold_min, p.threshold_max);
		
		if(!ld_valid_fields(ld))  {
			sm_error("Wait, we didn't purify enough  (#%d in file)\n", count);
			continue;
		}
		
		ld_write_as_json(ld, out);
		ld_free(ld);
	}
	
	return 0;
}
Esempio n. 5
0
File: vbl.c Progetto: DrItanium/moo
boolean setup_for_replay_from_file(
	FileDesc *file,
	unsigned long map_checksum)
{
	boolean successful= FALSE;

#pragma unused(map_checksum)
	replay.recording_file_refnum= open_file_for_reading(file);
	if(replay.recording_file_refnum > 0)
	{
		replay.valid= TRUE;
		replay.have_read_last_chunk = FALSE;
		replay.game_is_being_replayed = TRUE;
		assert(!replay.resource_data);
		replay.resource_data= NULL;
		replay.resource_data_size= 0l;
		replay.film_resource_offset= NONE;
		
		read_file(replay.recording_file_refnum, sizeof(struct recording_header), &replay.header);
	
		/* Set to the mapfile this replay came from.. */
		if(use_map_file(replay.header.map_checksum))
		{
			replay.fsread_buffer= (char *)malloc(DISK_CACHE_SIZE); 
			assert(replay.fsread_buffer);
			if(!replay.fsread_buffer) alert_user(fatalError, strERRORS, outOfMemory, memory_error());
			
			replay.location_in_cache= NULL;
			replay.bytes_in_cache= 0;
			replay.replay_speed= 1;
			
#ifdef DEBUG_REPLAY
			open_stream_file();
#endif
			successful= TRUE;
		} else {
			/* Tell them that this map wasn't found.  They lose. */
			alert_user(infoError, strERRORS, cantFindReplayMap, 0);
		}
	}
	
	return successful;
}
Esempio n. 6
0
int main(int argc, const char * argv[]) {
	sm_set_program_name(argv[0]);
	
	int nth;
	const char*input_filename;
	const char*output_filename;
	
	struct csm_option* ops = csm_options_allocate(3);
	csm_options_int(ops, "nth", &nth, 0, "Index of object to extract.");
	csm_options_string(ops, "in", &input_filename, "stdin", "input file (JSON)");
	csm_options_string(ops, "out", &output_filename, "stdout", "output file (JSON)");
	
	if(!csm_options_parse_args(ops, argc, argv)) {
		fprintf(stderr, "%s : extracts n-th JSON object from stream."
			"\n\ncsm_options:\n", argv[0]);
		csm_options_print_help(ops, stderr);
		return -1;
	}
	
	FILE * input_stream = open_file_for_reading(input_filename);
	FILE *output_stream = open_file_for_writing(output_filename);
	
	if(!input_stream || !output_stream) return -1;
	
	int i; for(i=0;i<nth;i++) {
		if(!json_stream_skip(input_stream)) {
			sm_error("Could not skip %d-th object\n", i);
			return -2;
		}
	}
	
	JO jo = json_read_stream(input_stream);
	if(!jo) {
		fprintf(stderr, "Could not read %d-th object (after skipping %d)\n", 
			nth, i);
		return -2;
	}
	
	fputs(json_object_to_json_string(jo), output_stream);
	fputs("\n", output_stream);
	return 0;
}
Esempio n. 7
0
static int
corpus_read_next_sent_file(char **trans)
{
    FILE *fp;
    lineiter_t *li;

    /* open the current file */
    fp = open_file_for_reading(DATA_TYPE_SENT);

    li = lineiter_start_clean(fp);
    if (li == NULL) {
	E_ERROR("Unable to read data in sent file %s\n",
		mk_filename(DATA_TYPE_SENT, cur_ctl_path));		
	return S3_ERROR;
    }

    *trans = strdup(li->buf);
    lineiter_free(li);
    fclose(fp);

    return S3_SUCCESS;
}
Esempio n. 8
0
int main(int argc, const char * argv[]) {
	sm_set_program_name(argv[0]);
	
	csm_options_banner("ld_noise: Adds noise to readings in a scan");
	
	struct ld_noise_params p;
	
	struct csm_option* ops = csm_options_allocate(20);
	csm_options_double(ops, "discretization", &p.discretization, 0.0, 
		"Size of discretization (disabled if 0)");
	csm_options_double(ops, "sigma", &p.sigma, 0.0, 
		"Std deviation of gaussian noise (disabled if 0)");
	csm_options_int(ops, "lambertian", &p.lambertian, 0, 
		"Use lambertian model cov = sigma^2 / cos(beta^2) where beta is the incidence. Need have alpha or true_alpha.");
	csm_options_int(ops, "seed", &p.seed, 0, 
		"Seed for random number generator (if 0, use GSL_RNG_SEED env. variable).");
	csm_options_string(ops, "in", &p.file_input, "stdin", "Input file ");
	csm_options_string(ops, "out", &p.file_output, "stdout", "Output file ");
		
		
	if(!csm_options_parse_args(ops, argc, argv)) {
		fprintf(stderr, "A simple program for adding noise to sensor scans.\n\nUsage:\n");
		csm_options_print_help(ops, stderr);
		return -1;
	}

	FILE * in = open_file_for_reading(p.file_input);
	if(!in) return -3;

	FILE * out = open_file_for_writing(p.file_output);
	if(!out) return -2;


	gsl_rng_env_setup();
	gsl_rng * rng = gsl_rng_alloc (gsl_rng_ranlxs0);
	if(p.seed != 0)
	gsl_rng_set(rng, (unsigned int) p.seed);

	LDP ld; int count = 0;
	while( (ld = ld_from_json_stream(in))) {
		if(!ld_valid_fields(ld))  {
			sm_error("Invalid laser data (#%d in file)\n", count);
			continue;
		}
		
		int i;
		for(i=0;i<ld->nrays;i++) {
			if(!ld->valid[i]) continue;
			
			double * reading = ld->readings + i;
			if(p.sigma > 0) {
				double add_sigma = p.sigma;
				
				if(p.lambertian) {

					int have_alpha = 0;
					double alpha = 0;
					if(!is_nan(ld->true_alpha[i])) {
						alpha = ld->true_alpha[i];
						have_alpha = 1;
					} else if(ld->alpha_valid[i]) {
						alpha = ld->alpha[i];;
						have_alpha = 1;
					} else have_alpha = 0;

					if(have_alpha) {
						/* Recall that alpha points outside the surface */
						double beta = (alpha+M_PI) - ld->theta[i];
					    add_sigma = p.sigma / cos(beta);
					} else {
						sm_error("Because lambertian is active, I need either true_alpha[] or alpha[]");
						ld_write_as_json(ld, stderr);
						return -1;
					}
					
				} 
				
			   *reading += gsl_ran_gaussian(rng, add_sigma);
				
				if(is_nan(ld->readings_sigma[i])) {
					ld->readings_sigma[i] = add_sigma;
				} else {
					ld->readings_sigma[i] = sqrt(square(add_sigma) + square(ld->readings_sigma[i]));
				}
			}
			if(p.discretization > 0)
				*reading -= fmod(*reading , p.discretization);
		}
	
		ld_write_as_json(ld, out);
		ld_free(ld);
	}
	
	return 0;
}
Esempio n. 9
0
int main(int argc, const char ** argv) {
	sm_set_program_name(argv[0]);
	
	struct ld_exp_tro1_params p;
	
	options_banner(banner);
	
	struct option* ops = options_allocate(10);
	options_double(ops, "max_xy_error", &p.max_xy_error, 10.0, "Maximum error for x,y (m)");
	options_double(ops, "max_theta_error_deg", &p.max_theta_error_deg, 10.0, "Maximum error for orientation (deg)");
	options_int   (ops, "seed", &p.seed, 0, "Seed for random number generator (if 0, use GSL_RNG_SEED env. variable).");

	options_int(ops, "num_per_scan", &p.num_per_scan, 10, "Number of trials for each scan.");

	options_string(ops, "in", &p.file_input, "stdin", "Input file ");
	options_string(ops, "out1", &p.file_output1, "stdout", "Output file for first scan");
	options_string(ops, "out2", &p.file_output2, "stdout", "Output file for second scan");
	
	options_int(ops, "debug", &p.debug, 0, "Shows debug information");
	
	if(!options_parse_args(ops, argc, argv)) {
		options_print_help(ops, stderr);
		return -1;
	}
	
	sm_debug_write(p.debug);

	gsl_rng_env_setup();
	gsl_rng * rng = gsl_rng_alloc (gsl_rng_ranlxs0);
	if(p.seed != 0)
	gsl_rng_set(rng, (unsigned int) p.seed);
	
	/* Open the two output files (possibly the same one) */
	
	FILE * in = open_file_for_reading(p.file_input);
	if(!in) return -3;

	FILE * out1 = open_file_for_writing(p.file_output1);
	if(!out1) return -2;
	
	FILE * out2;
	if(!strcmp(p.file_output1, p.file_output2)) {
		out1 = out2;
	} else {
		out2 = open_file_for_writing(p.file_output2);
		if(!out2) return -2;
	}

	/* Read laser data from input file */
	LDP ld; int count=0;
	while( (ld = ld_read_smart(in))) {
		count++;
		if(!ld_valid_fields(ld))  {
			sm_error("Invalid laser data (#%d in file)\n", count);
			continue;
		}
		
		for(int n=0; n < p.num_per_scan; n++) {					
			ld->true_pose[0] = 0;
			ld->true_pose[1] = 0;
			ld->true_pose[2] = 0;
			
			ld->odometry[0] = 0;
			ld->odometry[1] = 0;
			ld->odometry[2] = 0;
			
			ld_write_as_json(ld, out1);

			ld->odometry[0] = 2*(gsl_rng_uniform(rng)-0.5) * p.max_xy_error;
			ld->odometry[1] = 2*(gsl_rng_uniform(rng)-0.5) * p.max_xy_error;
			ld->odometry[2] = 2*(gsl_rng_uniform(rng)-0.5) * deg2rad(p.max_theta_error_deg);
			
			ld_write_as_json(ld, out2);
		}

		ld_free(ld);
	}
	
	return 0;
}
Esempio n. 10
0
int log2pdf(log2pdf_params *p) {

	/** First of all, we read the entire map into memory */
	FILE *input_file = open_file_for_reading(p->input_filename);
	if(!input_file) return 0;
	
	LDP*scans; int nscans;
	
	if(!ld_read_some_scans_distance(input_file,  &scans, &nscans,
		 p->use_reference, p->distance_xy, deg2rad(p->distance_th_deg) ) ){
		sm_error("Could not read map from file '%s'.\n", p->input_filename); 
		return 0;
	}
	
	if(nscans == 0) {
		sm_error("I could not read any scan from file '%s'.\n", p->input_filename);
		return 0;
	}
	
	sm_debug("Read map: %d scans in total.\n", nscans);

	/** Let's find the bounding box for the map */
	double bb_min[2], bb_max[2];
	double offset[3] = {0,0,0};
	lda_get_bounding_box(scans, nscans, bb_min, bb_max, offset, p->use_reference, p->laser.horizon);
	
	bb_min[0] -= p->padding;
	bb_min[1] -= p->padding;
	bb_max[0] += p->padding;
	bb_max[1] += p->padding;
	

	sm_debug("Bounding box: %f %f -- %f %f.\n", bb_min[0], bb_min[1],
		bb_max[0], bb_max[1]);

		
	/* Create PDF surface and setup paper size and transformations */
	int max_width_points = p->dimension;
	int max_height_points = p->dimension;
	cairo_surface_t *surface;
	cairo_t *cr;

	if(!create_pdf_surface(p->output_filename, max_width_points, max_height_points, 
		bb_min, bb_max, &surface, &cr)) return 0;

	/* Draw pose path */
	if(p->pose_path.draw) {
		cairo_save(cr);
		
		cr_set_style(cr, &(p->pose_path));
		cr_lda_draw_pose_path(cr, scans, nscans, p->use_reference);

		if(nscans > 0 && p->laser.pose.draw) {
			cairo_set_source_rgb(cr, 0.3, 0.0, 1.0);
			double *pose0 = ld_get_reference_pose(scans[0], p->use_reference);
			cairo_arc(cr, pose0[0], pose0[1], p->start_pose_width, 0.0, 2*M_PI);
			cairo_fill(cr);
		}

		cairo_restore(cr);
	}

	/* Draw map */
	int k; for(k=0;k<nscans;k++) {
		LDP ld = scans[k];
		double *pose = ld_get_reference_pose(ld, p->use_reference);
		if(!pose) continue;
		
		double offset[3] = {0,0, deg2rad(p->offset_theta_deg) };
		double world_pose[3];
		oplus_d(offset, pose, world_pose);
				
		cairo_save(cr);
		cr_set_reference(cr, world_pose);
		cr_ld_draw(cr, ld, &(p->laser));
		cairo_restore(cr);
	}

	cairo_show_page (cr);

	cairo_destroy (cr);
	cairo_surface_destroy (surface);
	return 1;
}
Esempio n. 11
0
int main(int argc, const char * argv[]) {
	sm_set_program_name(argv[0]);

	const char *in_filename;
	const char *ref_filename;
	const char *out_filename;
	const char *ref_field_string; ld_reference ref_field;
	const char *out_field_string; ld_reference out_field;

	struct option* ops = options_allocate(15);
	options_string(ops, "in", &in_filename, "stdin", "scan matching log");
	options_string(ops, "ref", &ref_filename, "ref.log", "slam log");
	options_string(ops, "out", &out_filename, "stdout", "output file");

	options_string(ops, "ref_field", &ref_field_string, "estimate", "What field to find in ref.");
	options_string(ops, "out_field", &out_field_string, "true_pose", "What field to copy to.");
		
	if(!options_parse_args(ops, argc, argv)) {
		fprintf(stderr, " This program works on two logs: A and B. "
		"For each scan in A, the program searches for the scan in B having the same timestamp. "
		"Then, the true_pose field in B is copied to the scan form A, and it is written to the output.\n");
		options_print_help(ops, stderr);
		return -1;
	}
	
	ref_field = ld_string_to_reference(ref_field_string);
	out_field = ld_string_to_reference(out_field_string);
	
	
	FILE * in_stream  = open_file_for_reading(in_filename);
	FILE * ref_stream = open_file_for_reading(ref_filename);
	FILE * out_stream = open_file_for_writing(out_filename);
	
	if(!in_stream || !ref_stream || !out_stream) return -1;

	LDP ld_in;
	while((ld_in = ld_read_smart(in_stream))) {
		int matched = 0;
		while(1) {
			LDP ld_ref = ld_read_smart(ref_stream);
			if(!ld_ref) break;
			if(same_scan(ld_in, ld_ref)) {
				matched = 1;
				const double *ref_pose = ld_get_reference_pose(ld_ref, ref_field);
				double *out_pose = ld_get_reference_pose_silent(ld_in, out_field);
				copy_d(ref_pose, 3, out_pose);
				ld_write_as_json(ld_in, out_stream);
				fputs("\n", out_stream);
				break;
			}
			ld_free(ld_ref);
		}

		if(!matched) {
			sm_error("Could not match %s. \n", short_desc(ld_in));
			if(feof(ref_stream)) {
				sm_error("..because ref stream has ended.\n");
				break;
			}
			continue;
		}
	
		ld_free(ld_in);
	}
	
	return 0;
}
Esempio n. 12
0
int main(int argc, const char*argv[]) {
	sm_set_program_name(argv[0]);
	
	struct sm_params params;
	struct sm_result result;
	
	struct option* ops = options_allocate(100);
	options_string(ops, "in", &p.file_in, "stdin", "Input file ");
	options_string(ops, "out", &p.file_out, "stdout", "Output file ");
	options_string(ops, "out_stats", &p.file_out_stats, "", "Output file (stats) ");
	options_string(ops, "file_jj", &p.file_jj, "",
		"File for journaling -- if left empty, journal not open.");
	options_int(ops, "algo", &p.algo, 0, "Which algorithm to use (0:(pl)ICP 1:gpm-stripped 2:HSM) ");
	
	options_int(ops, "debug", &p.debug, 0, "Shows debug information");
	options_int(ops, "recover_from_error", &p.recover_from_error, 0, "If true, tries to recover from an ICP matching error");
	
	
	p.format = 0;
/*	options_int(ops, "format", &p.format, 0,
		"Output format (0: log in JSON format, 1: log in Carmen format (not implemented))");*/
	
	sm_options(&params, ops);
	if(!options_parse_args(ops, argc, argv)) {
		fprintf(stderr, "\n\nUsage:\n");
		options_print_help(ops, stderr);
		return -1;
	}

	sm_debug_write(p.debug);

	/* Open input and output files */
	
	FILE * file_in = open_file_for_reading(p.file_in);
	if(!file_in) return -1;
	FILE * file_out = open_file_for_writing(p.file_out);
	if(!file_out) return -1;
	
	if(strcmp(p.file_jj, "")) {
		FILE * jj = open_file_for_writing(p.file_jj);
		if(!jj) return -1;
		jj_set_stream(jj);
	}
	
	FILE * file_out_stats = 0;
	if(strcmp(p.file_out_stats, "")) {
		file_out_stats = open_file_for_writing(p.file_out_stats);
		if(!file_out_stats) return -1;
	}
	
	/* Read first scan */
	LDP laser_ref;
	if(!(laser_ref = ld_read_smart(file_in))) {
		sm_error("Could not read first scan.\n");
		return -1;
	}
	if(!ld_valid_fields(laser_ref))  {
		sm_error("Invalid laser data in first scan.\n");
		return -2;
	}
	
	
	/* For the first scan, set estimate = odometry */
	copy_d(laser_ref->odometry, 3, laser_ref->estimate);
	
	spit(laser_ref, file_out);
	int count=-1;
	LDP laser_sens;
	while( (laser_sens = ld_read_smart(file_in)) ) {
		
		count++;
		if(!ld_valid_fields(laser_sens))  {
			sm_error("Invalid laser data in (#%d in file).\n", count);
			return -(count+2);
		}
		
		params.laser_ref  = laser_ref;
		params.laser_sens = laser_sens;

		/* Set first guess as the difference in odometry */
		
		if(	any_nan(params.laser_ref->odometry,3) ||  
			any_nan(params.laser_sens->odometry,3) ) {
				sm_error("The 'odometry' field is set to NaN so I don't know how to get an initial guess. I usually use the difference in the odometry fields to obtain the initial guess.\n");
				sm_error("  laser_ref->odometry = %s \n",  friendly_pose(params.laser_ref->odometry) );
				sm_error("  laser_sens->odometry = %s \n", friendly_pose(params.laser_sens->odometry) );
				sm_error(" I will quit it here. \n");
				return -3;
		}
		
		double odometry[3];
		pose_diff_d(laser_sens->odometry, laser_ref->odometry, odometry);
		double ominus_laser[3], temp[3];
		ominus_d(params.laser, ominus_laser);
		oplus_d(ominus_laser, odometry, temp);
		oplus_d(temp, params.laser, params.first_guess);
		
		/* Do the actual work */
		switch(p.algo) {
			case(0):
				sm_icp(&params, &result); break;
			case(1):
				sm_gpm(&params, &result); break;
			case(2):
				sm_hsm(&params, &result); break;
			default:
				sm_error("Unknown algorithm to run: %d.\n",p.algo);
				return -1;
		}
		
		if(!result.valid){
			if(p.recover_from_error) {
				sm_info("One ICP matching failed. Because you passed  -recover_from_error, I will try to recover."
				" Note, however, that this might not be good in some cases. \n");
				sm_info("The recover is that the displacement is set to 0. No result stats is output. \n");
				
				/* For the first scan, set estimate = odometry */
				copy_d(laser_ref->estimate, 3, laser_sens->estimate);
				
				ld_free(laser_ref); laser_ref = laser_sens;
				
			} else {
				sm_error("One ICP matching failed. Because I process recursively, I will stop here.\n");
				sm_error("Use the option -recover_from_error if you want to try to recover.\n");
				ld_free(laser_ref);
				return 2;
			}
		} else {
		
			/* Add the result to the previous estimate */
			oplus_d(laser_ref->estimate, result.x, laser_sens->estimate);

			/* Write the corrected log */
			spit(laser_sens, file_out);

			/* Write the statistics (if required) */
			if(file_out_stats) {
				JO jo = result_to_json(&params, &result);
				fputs(jo_to_string(jo), file_out_stats);
				fputs("\n", file_out_stats);
				jo_free(jo);
			}

			ld_free(laser_ref); laser_ref = laser_sens;
		}
	}
	ld_free(laser_ref);
	
	return 0;
}