コード例 #1
0
        public void readTraceData(Byte[] buffer, IList <Trace> traceList, BinaryFileHeader binTemp)
        {
            //for loop that runs the amount of channels in the file
            for (int i = 0; i < binTemp.numDataTraces; i++)
            {
                Trace temp = new Trace();           //instantiates a new class every time there's a new channel
                if (i == 0)
                {
                    //240 is the size of a trace header, only read one trace header then skip over the rest
                    start = (binTemp.extendedTextualFileHeaderEnd + (240));
                    stop  = ((binTemp.extendedTextualFileHeaderEnd + (240)) + (binTemp.numSampsPerTrace * 4));
                    //Debug.WriteLine("START INDEX: " + start);
                    //Debug.WriteLine("END INDEX: " + stop);
                    temp.determineTraceData(buffer, start, stop, binTemp);

                    traceList.Add(temp);
                }
                else
                {
                    start = stop + 240;
                    stop  = start + ((binTemp.numSampsPerTrace * 4));
                    //Debug.WriteLine("START INDEX: " + start);
                    //Debug.WriteLine("END INDEX: " + stop);

                    temp.determineTraceData(buffer, start, stop, binTemp);
                    traceList.Add(temp);
                }
            }
        }
コード例 #2
0
ファイル: Trace.cs プロジェクト: mattpritzkow/SEGYRead
        public void determineTraceData(Byte[] buffer, int start, int stop, BinaryFileHeader binTemp)
        {
            Amplitudes amplitudeReader = null;

            switch (binTemp.measurementUnit)
            {
            case 0x1:
                amplitudeReader = new Amp4ByteIBMFloating();
                break;

            case 0x2:
                amplitudeReader = new Amp4Byte2sComp();
                break;

            case 0x3:
                amplitudeReader = new Amp2Byte2sComp();
                break;

            case 0x4:
                Debug.WriteLine("OBSOLETE FIXED POINT WITH GAIN FORMAT. NOT SUPPORTED");
                break;

            case 0x5:
                amplitudeReader = new Amp4ByteIEEEFloating();
                break;

            case 0x6:
                Debug.WriteLine("NOT CURRENTLY USED");
                break;

            case 0x7:
                Debug.WriteLine("NOT CURRENTLY USED");
                break;

            case 0x8:
                amplitudeReader = new Amp1Byte2sComp();
                break;
            }

            amplitudes = amplitudeReader.ReadData(buffer, start, stop);     //calls the Abstract class Amplitudes() that will determine how to read the Trace amplitudes
            Debug.WriteLine("List Size: " + amplitudes.Count());
        }
コード例 #3
0
ファイル: Trace.cs プロジェクト: mattpritzkow/SEGYRead
        } // end of flipBits()

        public void readTraceHeaders(Byte[] buffer, BinaryFileHeader temp)
        {
            if (buffer.Count() <= 0)
            {
                Debug.WriteLine("Buffer is empty.");
                return;
            }

            //Debug.WriteLine("Beginning Bit Location of Trace Header 1: " + temp.extendedTextualFileHeaderEnd);

            this.traceSeqNumLine  = BitConverter.ToUInt32(buffer, temp.extendedTextualFileHeaderEnd);
            this.ogFieldRecordNum = BitConverter.ToUInt32(buffer, temp.extendedTextualFileHeaderEnd + 9);
            this.traceNumOGField  = BitConverter.ToUInt32(buffer, temp.extendedTextualFileHeaderEnd + 13);

            this.traceIDCode = BitConverter.ToUInt16(buffer, temp.extendedTextualFileHeaderEnd + 29);

            this.numSampsTrace = BitConverter.ToUInt16(buffer, temp.extendedTextualFileHeaderEnd + 115);
            this.sampIntMicro  = BitConverter.ToUInt16(buffer, temp.extendedTextualFileHeaderEnd + 117);

            Debug.WriteLine("*--------------------START OF ANALYSIS OF TRACE HEADER--------------------*");

            Debug.WriteLine("Trace sequence number within line: " + traceSeqNumLine);
            Debug.WriteLine("Original field record number: " + ogFieldRecordNum);
            Debug.WriteLine("Trace number within the original field record: " + traceNumOGField);

            Debug.WriteLine("Trace ID Code: " + traceIDCode);
            if (traceIDCode == 1)
            {
                Debug.WriteLine("Trace ID says that this file contains seismic data");
            }
            else
            {
                Debug.WriteLine("This file doesn't contain seismic data according to the trace ID code.");
            }

            Debug.WriteLine("*--------------------END OF ANALYSIS OF TRACE HEADER--------------------*");
        }
コード例 #4
0
 public SEGYU()
 {
     binaryFileHeader = new BinaryFileHeader();
     trace            = new Trace();
 }