/// <summary>
/// 获取单个通道定义信息
/// </summary>
/// <param name="bDataInfo">包含通道定义信息的字节数组</param>
/// <param name="start">起始下标</param>
/// <returns>通道定义信息结构体对象</returns>
private DataChannelInfo GetChannelInfo(byte[] bDataInfo, int start)
{
DataChannelInfo dci = new DataChannelInfo();
StringBuilder sUnit = new StringBuilder();
dci.sID = BitConverter.ToInt32(bDataInfo, start);//通道起点为0，导致通道id取的都是第一个通道的id，把0改为start，
dci.sNameEn = UnicodeEncoding.Default.GetString(bDataInfo, DataChannelOffset.NameEn + 1 + start, (int)bDataInfo[DataChannelOffset.NameEn + start]);
dci.sNameCh = UnicodeEncoding.Default.GetString(bDataInfo, DataChannelOffset.NameCh + 1 + start, (int)bDataInfo[DataChannelOffset.NameCh + start]);
for (int i = 1; i <= (int)bDataInfo[DataChannelOffset.Unit + start]; i++)
{
sUnit.Append(UnicodeEncoding.Default.GetString(bDataInfo, DataChannelOffset.Unit + i + start, 1));
}
dci.sUnit = sUnit.ToString();
dci.fScale = BitConverter.ToSingle(bDataInfo, DataChannelOffset.Scale + start);
dci.fOffset = BitConverter.ToSingle(bDataInfo, DataChannelOffset.Offset + start);
return(dci);
}
/// <summary>
/// 查询CIT通道信息--返回通道定义结构体列表，同时dciL全局变量赋值
/// 返回：通道定义信息结构体对象列表
/// </summary>
/// <param name="sFile">CIT文件名（全路径）</param>
/// <returns>返回结构体</returns>
public List <DataChannelInfo> GetDataChannelInfoHead(string sFile)
{
using (FileStream fs = new FileStream(sFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (BinaryReader br = new BinaryReader(fs, Encoding.Default))
{
br.BaseStream.Position = 0;
br.ReadBytes(DataOffset.DataHeadLength);
byte[] bChannelData = br.ReadBytes(dhi.iChannelNumber * DataOffset.DataChannelLength);
dciL = new List <DataChannelInfo>();
for (int i = 0; i < dhi.iChannelNumber * DataOffset.DataChannelLength; i += DataOffset.DataChannelLength)
{
DataChannelInfo dci = GetChannelInfo(bChannelData, i);
if (i == DataOffset.DataChannelLength)
{
dci.fScale = 4;
}
dciL.Add(dci);
}
}
}
return(dciL);
}
/// <summary>
/// 把反方向检测转换为正方向检测
/// </summary>
/// <param name="citFileName"></param>
public void ModifyCitReverseToForward(String citFileName)
{
DataHeadInfo m_dhi = GetDataInfoHead(citFileName);
List <DataChannelInfo> m_dciL = GetDataChannelInfoHead(citFileName);
//左高低与右高低对调
ChannelExchange(m_dciL, "L_Prof_SC", "R_Prof_SC", false);
ChannelExchange(m_dciL, "L_Prof_SC_70", "R_Prof_SC_70", false);
ChannelExchange(m_dciL, "L_Prof_SC_120", "R_Prof_SC_120", false);
DataChannelInfo m_dci_a = new DataChannelInfo();
//左轨向与右轨向对调，然后幅值*（-1）
ChannelExchange(m_dciL, "L_Align_SC", "R_Align_SC", true);
ChannelExchange(m_dciL, "L_Align_SC_70", "R_Align_SC_70", true);
ChannelExchange(m_dciL, "L_Align_SC_120", "R_Align_SC_120", true);
//水平、超高、三角坑、曲率、曲率变化率*（-1）
for (int i = 0; i < m_dciL.Count; i++)
{
if (m_dciL[i].sNameEn.Equals("Crosslevel"))
{
m_dci_a = m_dciL[i];
m_dci_a.fScale = m_dci_a.fScale * (-1);
m_dciL[i] = m_dci_a;
}
if (m_dciL[i].sNameEn.Equals("Superelevation"))
{
m_dci_a = m_dciL[i];
m_dci_a.fScale = m_dci_a.fScale * (-1);
m_dciL[i] = m_dci_a;
}
if (m_dciL[i].sNameEn.Equals("Short_Twist"))
{
m_dci_a = m_dciL[i];
m_dci_a.fScale = m_dci_a.fScale * (-1);
m_dciL[i] = m_dci_a;
}
if (m_dciL[i].sNameEn.Equals("Curvature"))
{
m_dci_a = m_dciL[i];
m_dci_a.fScale = m_dci_a.fScale * (-1);
m_dciL[i] = m_dci_a;
}
if (m_dciL[i].sNameEn.Equals("Curvature_Rate"))
{
m_dci_a = m_dciL[i];
m_dci_a.fScale = m_dci_a.fScale * (-1);
m_dciL[i] = m_dci_a;
}
}
try
{
#region 存取文件
FileStream fsRead = new FileStream(citFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
FileStream fsWrite = new FileStream(citFileName + ".bak", FileMode.Create, FileAccess.Write, FileShare.ReadWrite);
BinaryReader br = new BinaryReader(fsRead, Encoding.UTF8);
BinaryWriter bw1 = new BinaryWriter(fsWrite, Encoding.UTF8);
byte[] bHead = br.ReadBytes(120);
byte[] bChannels = br.ReadBytes(65 * m_dhi.iChannelNumber);
byte[] bData = new byte[m_dhi.iChannelNumber * 2];
byte[] bDataNew = new byte[m_dhi.iChannelNumber * 2];
byte[] bTail = br.ReadBytes(BitConverter.ToInt32(br.ReadBytes(4), 0));
//bw1.Write(bHead);
bw1.Write(GetBytesFromDataHeadInfo(m_dhi));//文件头
//反向--转换为正向
if (m_dhi.iRunDir == 0)
{
bw1.Write(bChannels);
}
else
{
bw1.Write(GetBytesFromChannelDataInfoList(m_dciL));
}
bw1.Write(bTail.Length);
bw1.Write(bTail);
long startPos = br.BaseStream.Position;//记录数据开始位置的文件指针
while (br.BaseStream.Position < br.BaseStream.Length)
{
bw1.Write(br.ReadBytes(m_dhi.iChannelNumber * 2));
//br.BaseStream.Position += m_dhi.iChannelNumber * 2;
}
//
bw1.Close();
br.Close();
fsWrite.Close();
fsRead.Close();
//删除bak
Application.DoEvents();
File.Delete(citFileName);
Application.DoEvents();
File.Move(citFileName + ".bak", citFileName);
Application.DoEvents();
#endregion
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
return;
}
