segy.h

解吸SEED格式的源代码

struct segy {
	int tr_seg_num;
	int reel_tr_seg_num;
	int orig_fld_num;
	int tr_num_orig_rec;
	int energy_src_pnt;
	int CDP_num;
	int tr_num_CDP;
	short tr_id;
	short num_vert_tr;
	short num_hor_tr;
	short data_use;
	int dist_from_src;
	int rec_grp_elev;
	int src_surf_elev;
	int src_depth;
	int datum_elev_rec_grp;
	int datum_elev_src;
	int water_depth_src;
	int water_depth_group;
	short elev_depth_scaler;
	short coordinate_scaler;
	int src_coordinate_x;
        int src_coordinate_y; 
        int grp_coordinate_x; 
        int grp_coordinate_y; 
	short coordinate_units;
	short weathering_vel;
	short subweathering_vel;
	short uphole_time_src;
	short uphole_time_grp;
	
	short src_static_correction;
	short grp_static_correction;
	short tot_static_applied;
	short lag_time_A;
	short lag_time_B;
	short delay_recording_time;
	short mute_time_start;
	short mute_time_end;
	short number_of_samples;
	short sample_interval;
	short gain_type;
	short inst_gain_const;
	short early_initial_gain;
	short correlated;
	short sweep_freq_start;
	short sweep_freq_end;
	short sweep_length;
	short sweep_type;
	short sweep_trace_taper_length_start;
	short sweep_trace_taper_length_end;	
	short taper_type;
	short alias_filter_freq;
	short alias_filter_slope;
	short notch_filter_freq; 
        short notch_filter_slope; 
	short low_cut_freq;
	short high_cut_freq;
        short low_cut_slope;
        short high_cut_slope; 
	short year_data_recorded;
	short day_of_year;
	short hour;
	short minute;
	short second;
	short tmz;
	short trace_weighting;
	short geophone_grp_num_roll_switch;
	short geophone_grp_num_trace_num;
	short geophone_grp_num_last_trace;
	short gap_size;
	short over_travel;
	union 
	{
		char  buffer[59];
		struct passcal_stuff
		{
			char stn[6];
			char sensor_serial[8];
			char chn[4];
			short tot_static_hi;
			int sample_rate;
			short int_size_flag;
			short start_tr_ms;
			short event_time_yr;
			short event_time_day;
			short event_time_hour;
			short event_time_min;
			short event_time_sec;
			short event_time_ms;
			float scale_factor;
			short inst_no;
			short filler;
			int num_samples;
			int max_samp;
			int min_samp;
		} p_stuff;

	} comment;

};