// 写入文件头
private bool WriteSpcHdr(spcdr SpcHdr)
{
byte[] bytData = StructToBytes(SpcHdr);
fileStream.Write(bytData, 0, bytData.Length);
/*
* bytData = null;
* GC.Collect();
* GC.WaitForPendingFinalizers();
*/
return(true);
}
// 读取文件头
private bool ReadSpcHdr(out spcdr SpcHdr)
{
SpcHdr = new spcdr();
byte[] bytData = new byte[Marshal.SizeOf(SpcHdr)];
fileStream.Read(bytData, 0, bytData.Length);
SpcHdr = (spcdr)BytesToStruct(bytData, typeof(spcdr));
/*
* bytData = null;
* GC.Collect();
* GC.WaitForPendingFinalizers();
*/
return(true);
}
// 打开spc文件
public bool Open(string fileName)
{
try
{
fileStream = new FileStream(fileName, FileMode.OpenOrCreate, FileAccess.ReadWrite);
m_SpcHdr = new spcdr();
m_SubHdr = new subhdr();
}
catch (System.Exception ex)
{
m_strError = ex.Message;
return(false);
}
return(true);
}
public const int G_RIGHTSPC_KEY_IS_FEXP = 0x80; // ieee 32-bit floats
// 判断Spc是否正确
public bool IsRightSpcFile(string sFileName)
{
bool bRe = true;
try
{
FileStream fs = new FileStream(sFileName, FileMode.Open, FileAccess.Read);
spcdr SpcHdr = new spcdr();
byte[] bytData = new byte[Marshal.SizeOf(SpcHdr)];
fs.Read(bytData, 0, bytData.Length);
SpcHdr = (spcdr)BytesToStruct(bytData, typeof(spcdr));
if (SpcHdr.ftflgs != G_RIGHTSPC_KEY_IS_FTFLGS)
{
bRe = false;
}
if (SpcHdr.fversn != G_RIGHTSPC_KEY_IS_FVERSN)
{
bRe = false;
}
if (SpcHdr.fexper != G_RIGHTSPC_KEY_IS_FEXPER)
{
bRe = false;
}
if (SpcHdr.fexp != G_RIGHTSPC_KEY_IS_FEXP)
{
bRe = false;
}
bytData = null;
fs.Flush();
fs.Close();
fs = null;
}
catch (System.Exception ex)
{
bRe = false;
}
finally
{
}
return(bRe);
}
/// <summary>
/// Read for single file type
/// </summary>
/// <param name="xdata"></param>
/// <param name="ydata"></param>
/// <returns></returns>
public bool Read(out float[] xdata, out float[] ydata)
{
spcdr strsd = m_SpcHdr;
subhdr strsh = m_SubHdr;
try
{
ReadSpcHdr(out strsd);
int count = Convert.ToInt32(strsd.fnpts);
ReadData(out xdata, count);
ReadSubHdr(out strsh);
ReadData(out ydata, count);
}
catch (Exception)
{
xdata = new float[1];
ydata = new float[1];
return(false);
}
return(true);
}
/// <summary>
/// write for single file type
/// </summary>
/// <param name="xdata"></param>
/// <param name="ydata"></param>
/// <returns></returns>
public bool Write(float[] xdata, float[] ydata)
{
spcdr strsd = m_SpcHdr;
subhdr strsh = m_SubHdr;
if (xdata == null || ydata == null)
{
return(false);
}
if (xdata.Length != ydata.Length)
{
return(false);
}
// spchdr
strsd.ftflgs = 0x80; // single file
strsd.fversn = 0x4b; // new format
strsd.fexper = 0x0b; // raman spectrum
strsd.fexp = 0x80; // ieee 32-bit floats
strsd.fnpts = Convert.ToUInt32(xdata.Length);
strsd.ffirst = xdata[0];
strsd.flast = xdata[xdata.Length - 1];
strsd.fnsub = 1; // only one subfile
strsd.fxtype = 13; // raman shift
strsd.fytype = 4; // counts
strsd.fztype = 0; // arbitrary
strsd.fpost = 0; // 0
strsd.fdate = 0;
ArrayClear(out strsd.fres, 9); // 0
ArrayClear(out strsd.fsource, 9);
strsd.fpeakpt = 0; // not known
ArrayClear(out strsd.fspare, 8);
ArrayClear(out strsd.fcmnt, 130);
ArrayClear(out strsd.fcatxt, 30); // 0
strsd.flogoff = 0; // no log block
strsd.fmods = 0; // 0
strsd.fprocs = 0; // 0
strsd.flevel = 0; // 0
strsd.fsampin = 0; // 0
strsd.ffactor = 0; // 0
ArrayClear(out strsd.fmethod, 48); // 0
strsd.fzinc = 0; // 0 for single file
strsd.fwplanes = 0; // 0 for single file
strsd.fwinc = 0; // 0 for single file
strsd.fwtype = 0; // arbitrary
ArrayClear(out strsd.freserv, 187); // 0
// subhdr
strsh.subflgs = 0; // 0
strsh.subexp = 0; // fexp in spcdr is set
strsh.subindx = 0; // only one sub file, 0 = start index
strsh.subtime = 0; // 0
strsh.subnext = 0; // 0
strsh.subnois = 0; // 0
strsh.subnpts = 0; // 0
strsh.subscan = 0; // 0
strsh.subwlevel = 0; // 0
ArrayClear(out strsh.subresv, 4); // 0
// write private params
//strsd.fdate = DateTime2Uint();
//ArraySet(ref strsd.fsource, deviceName);
//strsd.fspare[0] = Convert.ToSingle(laserPower);
//strsd.fspare[1] = Convert.ToSingle(intTime);
//strsd.fspare[2] = Convert.ToSingle(reNum);
//strsd.fspare[3] = Convert.ToSingle();
//strsd.fspare[4] = Convert.ToSingle();
//strsd.fspare[5] = Convert.ToSingle();
//strsd.fspare[6] = Convert.ToSingle();
//strsd.fspare[7] = Convert.ToSingle();
//string[] pair = new string[8];float[] peakPos
//pair[0] =
//pair[1] =
//pair[2] =
//pair[3] =
//pair[4] =
//pair[5] =
//pair[6] =
//pair[7] =
//ArraySet(ref strsd.fcmnt, String.Join("|", pair));
WriteSpcHdr(strsd);
WriteData(xdata);
WriteSubHdr(strsh);
WriteData(ydata);
fileStream.Flush();
return(true);
}