segy_cpp

SEGY API development tool for c++ environment.

segy.h contains all the standard segy rev 1 structure and classes. segy class can open segy file (little or big endian), It will convert from IBM floating point to IEEE (but not vice versa yet).

Using the Class

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I have include a sample main code on how to use the header.

#include <iostream>
#include "../header/segy.h"

int main () {
	segy sgy;
	sgy.OpenFile("velocity.segy");
	sgy.PrintTextHeader();
	sgy.PrintBinaryHeader();
	sgy.PrintTraceHeader();
}

I have tested with icc and g++. Please refer to Makefile to compile.

g++ main.cpp -std==c++

The header file can be copy and to your own code..

API Reference

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Table below show all the current and future implementation of the segy class.

Class Function	Description
segy()	Constructor
~segy()	Deconstructor
void OpenFile(std::string)	Open segy file and read the data and trace
void SaveFile()	Save into segy file text file (not implemeted yet)
void CloseFile()	Close the file stream (not implemeted yet)
void GetAllTrace()	return the trace data (not implemeted yet)
void ReadAllTrace()	Read all trace to the class (not implemeted yet)
void SetTrace()	Set the trace to the class (not implemeted yet)
void PrintTraceHeader()	Print outs the Trace Header
void PrintTextHeader()	Print outs the Text Header
void PrintBinaryHeader()	Print outs the Binary Header
void ToSu()	Convert to SU file (not implemented yet)

Class Variable	Description
unsigned char TFileHead_ [3200]	Store the beginning Text header file
unsigned char ExTFileHead_ [3200]	Store the Extension Texh Header file (to be changed to pointer)
binaryFileHeader BFileHead_	Store the binary file header
traceHeader traceHeader_	Store the Trace header (to be changed to pointer)
float *Trace_	Store the trace
std::string filename_;	Store the filename of the segy file
std::fstream in_;	File stream member

Sincerely, Amirul.