#include?“stdafx.h“
#include?“segy.h“
#include?
#include?
#include?
#include?
#include?

#include?
using?namespace?std;

void?*?SEGY_realloc?（void*?ptr?size_t?size?size_t?oldsize）
{
#ifdef?MS_DOS
	/*?fix?for?missing?realloc?in?MS?VC6.0?*/
	void?*new;
	if?（new=（void*）malloc（size））
	{
		memcpy（newptroldsize）;
		free（ptr）;
		ptr=new;
	}
	return?new;
#else
	return?realloc（ptrsize）;
#endif
}

class?ShotPoint
{
public:
????int?X;
????int?Y;
	int?Trace;
????ShotPoint（）?:?X（0）?Y（0）?Trace（0）?{}
????ShotPoint（int?NewX?int?NewY?int?NewTrace）?:?X（NewX）?Y（NewY）?Trace（NewTrace）?{}
};

bool?operator==（const?ShotPoint&?a?const?ShotPoint&?b）
{
????return?（a.X?==?b.X）?&&?（a.Y?==?b.Y）;
}

bool?operator<（const?ShotPoint&?a?const?ShotPoint&?b）
{
	if?（a.X?==?b.X）?return?（a.Y?????return?a.X?}


static?void?SwapWordByteOrder?（char?*?data_array?int?word_count）
{
??int??i?j;
??char?tmpchar;
??for?（i=0;?i??????j?=?（i*4）;
??????tmpchar?????????=?data_array[j+0];
??????data_array[j+0]?=?data_array[j+3];
??????data_array[j+3]?=?tmpchar;
??????tmpchar?????????=?data_array[j+2];
??????data_array[j+2]?=?data_array[j+1];
??????data_array[j+1]?=?tmpchar;
??}
}


static?void?SwapNybbleByteOrder?（char?*?data_array?int?nybble_count）
{
??int??i?j;
??char?tmpchar;
??for?（i=0;?i??????j?=?（i*2）;
??????tmpchar?????????=?data_array[j+0];
??????data_array[j+0]?=?data_array[j+1];
??????data_array[j+1]?=?tmpchar;
??}
}

static?int?ConvertBinary?（void?*?data?int?size?int?count）
{
????if?（size?==?sizeof?（short））
	SwapNybbleByteOrder?（（char?*）?data?count）;
????else?if?（size?!=?sizeof?（char））
	SwapWordByteOrder?（（char?*）?data?count）;
	
????return?0;
}
float?*?SegyReader::getSegyDataAndChar（SegyDim3s?&dimchar?*filename_buf）
{
	int?maxvals;
	
????//?Declare?a?dynamically?allocated?vector?of?IDs.
	vector?spArray;

????//?Iterator?is?used?to?loop?through?the?vector.	
????vector::iterator?spIterator;

	/***********************/
	/*?Function‘s?Body?????*/
	/***********************/

	//?Use?AVS/Express?function?to?map?enviroment?variables

	FILE?*infile;
	struct?segy_ebcdic_hdr?ebcdic_hdr;
	struct?segy_reel_hdr?reel_hdr;
	struct?segy_trace_hdr?trace_hdr;
	float?*trace_vals;
	float?*vals?*vals1;

	int?trace_count?=?0;
	int?index;
	float?minx?miny?maxx?maxy;
	float?intervall=0.0;

	minx?=?miny?=?maxx?=?maxy?=?0.0;

	if?（!strlen（filename_buf））?return?NULL;

	if?（（infile?=?fopen（filename_buf?“rb“））?==?NULL）?{
		fprintf（stdout“ReadSegy:?Cannot?open?segy?file?-?%s\n“filename_buf）;
		return?NULL;
	}

	fread（&ebcdic_hdr?SEGY_EBCDIC_HDR_SIZE?1?infile）;
	fread（&reel_hdr?SEGY_REEL_HDR_SIZE?1?infile）;
	ConvertBinary（&reel_hdr.job_id_number?sizeof（int32_T）?1）;
	ConvertBinary（&reel_hdr.line_number?sizeof（int32_T）?1）;
	ConvertBinary（&reel_hdr.reel_number?sizeof（int32_T）?1）;
	ConvertBinary（&reel_hdr.traces_per_record?sizeof（int16_t）?1）;
	Con

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1003??2004-04-07?10:31??segy讀取原碼\SgyReader\ReadMe.txt

?????文件???????8913??2004-03-09?13:39??segy讀取原碼\SgyReader\segy.cpp

?????文件???????3125??2004-03-09?13:39??segy讀取原碼\SgyReader\segy.h

?????文件???????2028??2004-04-12?17:20??segy讀取原碼\SgyReader\SgyReader.cpp

?????文件???????3498??2004-04-12?17:13??segy讀取原碼\SgyReader\SgyReader.dsp

?????文件????????541??2004-04-12?17:13??segy讀取原碼\SgyReader\SgyReader.dsw

?????文件??????50176??2005-03-03?09:36??segy讀取原碼\SgyReader\SgyReader.ncb

?????文件??????53760??2005-03-03?09:36??segy讀取原碼\SgyReader\SgyReader.opt

?????文件????????252??2004-04-12?17:25??segy讀取原碼\SgyReader\SgyReader.plg

?????文件???????3945??2004-04-07?10:51??segy讀取原碼\SgyReader\SgyReader.vcproj

?????文件????????213??2004-04-07?10:31??segy讀取原碼\SgyReader\stdafx.cpp

?????文件????????195??2004-04-07?10:31??segy讀取原碼\SgyReader\stdafx.h

????..AD...?????????0??2005-04-18?14:07??segy讀取原碼\SgyReader

?????文件????????917??2004-04-07?10:31??segy讀取原碼\SgyReader.sln

????..A..H.??????9728??2004-04-07?15:37??segy讀取原碼\SgyReader.suo

????..AD...?????????0??2005-04-18?14:06??segy讀取原碼

-----------?---------??----------?-----??----

???????????????138512????????????????????17