/// <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 ChannelDefinition GetChannelInfo(byte[] bDataInfo, int start)
{
ChannelDefinition cd = new ChannelDefinition();
StringBuilder sUnit = new StringBuilder();
cd.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，
//1+20 通道英文名
cd.sNameEn = UnicodeEncoding.Default.GetString(bDataInfo, DataChannelOffset.NameEn + 1 + start, (int)bDataInfo[DataChannelOffset.NameEn + start]);
//1+20 通道中文名
cd.sNameCh = UnicodeEncoding.Default.GetString(bDataInfo, DataChannelOffset.NameCh + 1 + start, (int)bDataInfo[DataChannelOffset.NameCh + start]);
//通道单位 1+10
for (int i = 1; i <= (int)bDataInfo[DataChannelOffset.Unit + start]; i++)
{
sUnit.Append(UnicodeEncoding.Default.GetString(bDataInfo, DataChannelOffset.Unit + i + start, 1));
}
cd.sUnit = sUnit.ToString();
//4 通道比例
cd.fScale = BitConverter.ToSingle(bDataInfo, DataChannelOffset.Scale + start);
//4 通道基线值
cd.fOffset = BitConverter.ToSingle(bDataInfo, DataChannelOffset.Offset + start);
return(cd);
}
/// <summary>
/// 交换通道数据
/// </summary>
/// <param name="m_dciL">要交换的通道数据</param>
/// <param name="channel_L">左通道名称</param>
/// <param name="channel_R">右通道名称</param>
/// <param name="isInverted">是否反转</param>
private void ChannelExchange(List <ChannelDefinition> m_dciL, string channel_L, string channel_R, bool isInverted)
{
int index_a = 0;
int index_b = 0;
ChannelDefinition m_dci_a = new ChannelDefinition();
ChannelDefinition m_dci_b = new ChannelDefinition();
foreach (ChannelDefinition m_dci in m_dciL)
{
if (m_dci.sNameEn == channel_L)
{
index_a = m_dciL.IndexOf(m_dci);
m_dci_a = m_dci;
if (isInverted)
{
m_dci_a.fScale = m_dci_a.fScale * (-1);
}
}
if (m_dci.sNameEn == channel_R)
{
index_b = m_dciL.IndexOf(m_dci);
m_dci_b = m_dci;
if (isInverted)
{
m_dci_b.fScale = m_dci_b.fScale * (-1);
}
}
}
if (index_a < index_b)
{
m_dciL.RemoveAt(index_a);
m_dciL.Insert(index_a, m_dci_b);
m_dciL.RemoveAt(index_b);
m_dciL.Insert(index_b, m_dci_a);
}
else if (index_a > index_b)
{
m_dciL.RemoveAt(index_b);
m_dciL.Insert(index_b, m_dci_a);
m_dciL.RemoveAt(index_a);
m_dciL.Insert(index_a, m_dci_b);
}
}
/// <summary>
/// 根据通道名称获取通道
/// </summary>
/// <param name="channelNameEn">通道英文名称</param>
/// <param name="channelNameCh">通道中文名称</param>
/// <returns>通道定义：null查找失败；null之外查找到的通道定义</returns>
public ChannelDefinition GetChannelByName(string channelNameEn, string channelNameCh)
{
ChannelDefinition channelDefin = null;
for (int i = 0; i < channelDefinitionList.Count; i++)
{
//增加判断StartsWith是因为有的cit里米通道为meter，有的为m
if ((channelDefinitionList[i].sNameEn.ToUpper().Equals(channelNameEn.ToUpper()) ||
channelDefinitionList[i].sNameCh.ToUpper().Equals(channelNameCh.ToUpper())) ||
channelDefinitionList[i].sNameEn.ToUpper().StartsWith(channelNameEn.ToUpper()))
{
//channelNumber = i + 1;
channelDefin = channelDefinitionList[i];
break;
}
}
return(channelDefin);
}
/// <summary>
/// 把反方向检测转换为正方向检测
/// </summary>
/// <param name="citFileName">cit文件路径</param>
public void ModifyCitReverseToForward(String citFileName)
{
FileInformation citHeaderInfo = GetFileInformation(citFileName);
List <ChannelDefinition> channelList = GetChannelDefinitionList(citFileName);
//左高低与右高低对调
ChannelExchange(channelList, "L_Prof_SC", "R_Prof_SC", false);
ChannelExchange(channelList, "L_Prof_SC_70", "R_Prof_SC_70", false);
ChannelExchange(channelList, "L_Prof_SC_120", "R_Prof_SC_120", false);
ChannelDefinition m_dci_a = new ChannelDefinition();
//左轨向与右轨向对调，然后幅值*（-1）
ChannelExchange(channelList, "L_Align_SC", "R_Align_SC", true);
ChannelExchange(channelList, "L_Align_SC_70", "R_Align_SC_70", true);
ChannelExchange(channelList, "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 < channelList.Count; i++)
{
if (channelList[i].sNameEn.Equals("Crosslevel"))
{
m_dci_a = channelList[i];
m_dci_a.fScale = m_dci_a.fScale * (-1);
channelList[i] = m_dci_a;
}
if (channelList[i].sNameEn.Equals("Superelevation"))
{
m_dci_a = channelList[i];
m_dci_a.fScale = m_dci_a.fScale * (-1);
channelList[i] = m_dci_a;
}
if (channelList[i].sNameEn.Equals("Short_Twist"))
{
m_dci_a = channelList[i];
m_dci_a.fScale = m_dci_a.fScale * (-1);
channelList[i] = m_dci_a;
}
if (channelList[i].sNameEn.Equals("Curvature"))
{
m_dci_a = channelList[i];
m_dci_a.fScale = m_dci_a.fScale * (-1);
channelList[i] = m_dci_a;
}
if (channelList[i].sNameEn.Equals("Curvature_Rate"))
{
m_dci_a = channelList[i];
m_dci_a.fScale = m_dci_a.fScale * (-1);
channelList[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 * citHeaderInfo.iChannelNumber);
byte[] bData = new byte[citHeaderInfo.iChannelNumber * 2];
byte[] bDataNew = new byte[citHeaderInfo.iChannelNumber * 2];
byte[] bTail = br.ReadBytes(BitConverter.ToInt32(br.ReadBytes(4), 0));
//bw1.Write(bHead);
bw1.Write(GetBytesFromDataHeadInfo(citHeaderInfo));//文件头
//反向--转换为正向
if (citHeaderInfo.iRunDir == 0)
{
bw1.Write(bChannels);
}
else
{
bw1.Write(GetBytesFromChannelDataInfoList(channelList));
}
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(citHeaderInfo.iChannelNumber * 2));
}
bw1.Close();
br.Close();
fsWrite.Close();
fsRead.Close();
//删除bak
File.Delete(citFileName);
File.Move(citFileName + ".bak", citFileName);
#endregion
}
catch (System.Exception ex)
{
throw ex;
}
}
