forked from cultpenguin/segymat
-
Notifications
You must be signed in to change notification settings - Fork 0
/
PutSegyTrace.m
147 lines (138 loc) · 8.32 KB
/
PutSegyTrace.m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
% PutSegyTrace(segyid,tracedata,SegyTraceHeader,SegyHeader)
% Write a SegyTrace to a filehandle 'segyid'
%
% (C) 2001-2012, Thomas Mejer Hansen, [email protected]
%
%
% This program is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 2 of the License, or
% (at your option) any later version.
%
% 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
%
function PutSegyTrace(segyid,tracedata,SegyTraceHeader,SegyHeader);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% WRITE SegyTraceHeader
if ~exist('TraceStart')==1, TraceStart=ftell(segyid);end
WRITETRACEHEADER=1;
if WRITETRACEHEADER==1,
fseek(segyid,0,'bof');
fseek(segyid,TraceStart,'bof');
fwrite(segyid,SegyTraceHeader.TraceSequenceLine,'int32'); % 0
fwrite(segyid,SegyTraceHeader.TraceSequenceFile,'int32'); % 4
fwrite(segyid,SegyTraceHeader.FieldRecord,'int32'); % 8
fwrite(segyid,SegyTraceHeader.TraceNumber,'int32'); % 12
fwrite(segyid,SegyTraceHeader.EnergySourcePoint,'int32'); % 16
fwrite(segyid,SegyTraceHeader.cdp,'int32'); % 20
fwrite(segyid,SegyTraceHeader.cdpTrace,'int32'); % 24
fwrite(segyid,SegyTraceHeader.TraceIdentifactionCode,'int16'); % 28
fwrite(segyid,SegyTraceHeader.NSummedTraces,'int16'); % 30
fwrite(segyid,SegyTraceHeader.NStackedTraces,'int16'); % 32
fwrite(segyid,SegyTraceHeader.DataUse,'int16'); % 34
fwrite(segyid,SegyTraceHeader.offset,'int32'); %36
fwrite(segyid,SegyTraceHeader.ReceiverGroupElevation,'int32'); %40
fwrite(segyid,SegyTraceHeader.SourceSurfaceElevation,'int32'); %44
fwrite(segyid,SegyTraceHeader.SourceDepth,'int32'); %48
fwrite(segyid,SegyTraceHeader.ReceiverDatumElevation,'int32'); %52
fwrite(segyid,SegyTraceHeader.SourceDatumElevation,'int32'); %56
fwrite(segyid,SegyTraceHeader.SourceWaterDepth,'int32'); %60
fwrite(segyid,SegyTraceHeader.GroupWaterDepth,'int32'); %64
fwrite(segyid,SegyTraceHeader.ElevationScalar,'int16'); %68
% Multiply/divide next number for following 4 values
fwrite(segyid,SegyTraceHeader.SourceGroupScalar,'int16'); %70
fwrite(segyid,SegyTraceHeader.SourceX,'int32'); %72
fwrite(segyid,SegyTraceHeader.SourceY,'int32'); %76
fwrite(segyid,SegyTraceHeader.GroupX,'int32'); %80
fwrite(segyid,SegyTraceHeader.GroupY,'int32'); %84
fwrite(segyid,SegyTraceHeader.CoordinateUnits,'int16'); %88
fwrite(segyid,SegyTraceHeader.WeatheringVelocity,'int16'); %90
fwrite(segyid,SegyTraceHeader.SubWeatheringVelocity,'int16'); %92
fwrite(segyid,SegyTraceHeader.SourceUpholeTime,'int16'); %94
fwrite(segyid,SegyTraceHeader.GroupUpholeTime,'int16'); %96
fwrite(segyid,SegyTraceHeader.SourceStaticCorrection,'int16'); %98
fwrite(segyid,SegyTraceHeader.GroupStaticCorrection,'int16'); %100
fwrite(segyid,SegyTraceHeader.TotalStaticApplied,'int16'); %102
fwrite(segyid,SegyTraceHeader.LagTimeA,'int16'); %104
fwrite(segyid,SegyTraceHeader.LagTimeB,'int16'); %106
fwrite(segyid,SegyTraceHeader.DelayRecordingTime,'int16'); %108
fwrite(segyid,SegyTraceHeader.MuteTimeStart,'int16'); %110
fwrite(segyid,SegyTraceHeader.MuteTimeEND,'int16'); %112
fwrite(segyid,SegyTraceHeader.ns,'uint16'); %114
fwrite(segyid,SegyTraceHeader.dt,'uint16'); %116
fwrite(segyid,SegyTraceHeader.GainType,'int16'); %118
fwrite(segyid,SegyTraceHeader.InstrumentGainConstant,'int16'); %120
fwrite(segyid,SegyTraceHeader.InstrumentInitialGain,'int16'); %%122
fwrite(segyid,SegyTraceHeader.Correlated,'int16'); %124
fwrite(segyid,SegyTraceHeader.SweepFrequenceStart,'int16'); %126
fwrite(segyid,SegyTraceHeader.SweepFrequenceEnd,'int16'); %128
fwrite(segyid,SegyTraceHeader.SweepLength,'int16'); %130
fwrite(segyid,SegyTraceHeader.SweepType,'int16'); %132
fwrite(segyid,SegyTraceHeader.SweepTraceTaperLengthStart,'int16'); %134
fwrite(segyid,SegyTraceHeader.SweepTraceTaperLengthEnd,'int16'); %136
fwrite(segyid,SegyTraceHeader.TaperType,'int16'); %138
fwrite(segyid,SegyTraceHeader.AliasFilterFrequency,'int16'); %140
fwrite(segyid,SegyTraceHeader.AliasFilterSlope,'int16'); %142
fwrite(segyid,SegyTraceHeader.NotchFilterFrequency,'int16'); %144
fwrite(segyid,SegyTraceHeader.NotchFilterSlope,'int16'); %146
fwrite(segyid,SegyTraceHeader.LowCutFrequency,'int16'); %148
fwrite(segyid,SegyTraceHeader.HighCutFrequency,'int16'); %150
fwrite(segyid,SegyTraceHeader.LowCutSlope,'int16'); %152
fwrite(segyid,SegyTraceHeader.HighCutSlope,'int16'); %154
fwrite(segyid,SegyTraceHeader.YearDataRecorded,'int16'); %156
fwrite(segyid,SegyTraceHeader.DayOfYear,'int16'); %158
fwrite(segyid,SegyTraceHeader.HourOfDay,'int16'); %160
fwrite(segyid,SegyTraceHeader.MinuteOfHour,'int16'); %162
fwrite(segyid,SegyTraceHeader.SecondOfMinute,'int16'); %164
fwrite(segyid,SegyTraceHeader.TimeBaseCode,'int16'); %166
fwrite(segyid,SegyTraceHeader.TraceWeightningFactor,'int16'); %170
fwrite(segyid,SegyTraceHeader.GeophoneGroupNumberRoll1,'int16'); %172
fwrite(segyid,SegyTraceHeader.GeophoneGroupNumberFirstTraceOrigField,'int16'); %174
fwrite(segyid,SegyTraceHeader.GeophoneGroupNumberLastTraceOrigField,'int16'); %176
fwrite(segyid,SegyTraceHeader.GapSize,'int16'); %178
fwrite(segyid,SegyTraceHeader.OverTravel,'int16'); %178
fwrite(segyid,SegyTraceHeader.cdpX,'int32'); %180
fwrite(segyid,SegyTraceHeader.cdpY,'int32'); %184
fwrite(segyid,SegyTraceHeader.Inline3D,'int32'); %188
fwrite(segyid,SegyTraceHeader.Crossline3D,'int32'); %192
fwrite(segyid,SegyTraceHeader.ShotPoint,'int32'); %196
fwrite(segyid,SegyTraceHeader.ShotPointScalar,'int16'); %200
fwrite(segyid,SegyTraceHeader.TraceValueMeasurementUnit,'int16'); %202
fwrite(segyid,SegyTraceHeader.TransductionConstantMantissa,'int32'); %204
fwrite(segyid,SegyTraceHeader.TransductionConstantPower,'int16'); %208
fwrite(segyid,SegyTraceHeader.TransductionUnit,'int16'); %210
fwrite(segyid,SegyTraceHeader.TraceIdentifier,'int16'); %212
fwrite(segyid,SegyTraceHeader.ScalarTraceHeader,'int16'); %214
fwrite(segyid,SegyTraceHeader.SourceType,'int16'); %216
fwrite(segyid,SegyTraceHeader.SourceEnergyDirectionMantissa,'int32'); %218
fwrite(segyid,SegyTraceHeader.SourceEnergyDirectionExponent,'int16'); %222
fwrite(segyid,SegyTraceHeader.SourceMeasurementMantissa,'int32'); %224
fwrite(segyid,SegyTraceHeader.SourceMeasurementExponent,'int16'); %228
fwrite(segyid,SegyTraceHeader.SourceMeasurementUnit,'int16'); %230
% WRITE UNASSIGNED CHARACTERS FOR THE REST
fwrite(segyid,SegyTraceHeader.UnassignedInt1,'int32'); %232
fwrite(segyid,SegyTraceHeader.UnassignedInt2,'int32'); %236
end
Revision=SegyHeader.SegyFormatRevisionNumber;
if Revision>0, Revision=1; end
Format=SegyHeader.Rev(Revision+1).DataSampleFormat(SegyHeader.DataSampleFormat).format;
BPS=SegyHeader.Rev(Revision+1).DataSampleFormat(SegyHeader.DataSampleFormat).bps;
SegymatVerbose([mfilename,' SegyRevision ',sprintf('%0.4g',Revision),', ',Format],3);
%% WRITE TRACE DATA;
if (strcmp(Format,'uint32')==1)|(strcmp(Format,'uint16')==1), % IBM FLOATING POINT
% CONVERT FROM FLOATING POINT
SegymatVerbose([mfilename,'Converting from IBM, DataFormat :',SegyHeader.DataSampleFormat],2);
tracedata=double(num2ibm(tracedata));
end;
if SegyHeader.FixedLengthTraceFlag
fwrite(segyid,tracedata,Format);
else
fwrite(segyid,tracedata(1:SegyTraceHeader.ns),Format);
end