/// <summary>
/// 获取通道信息
/// </summary>
/// <param name="bDataInfo"></param>
/// <param name="start"></param>
/// <returns></returns>
private DataChannelInfo GetChannelInfo(byte[] bDataInfo, ref int start)
{
DataChannelInfo dci = new DataChannelInfo();
StringBuilder sNameEn = new StringBuilder();
StringBuilder sUnit = new StringBuilder();
int iNameEnLen = (int)bDataInfo[start];
for (int i = 1; i <= iNameEnLen; i++)
{
sNameEn.Append(UnicodeEncoding.Default.GetString(bDataInfo, i + start, 1));
}
start += (1 + iNameEnLen);
int iUnitLen = (int)bDataInfo[start];
for (int i = 1; i <= iUnitLen; i++)
{
sUnit.Append(UnicodeEncoding.Default.GetString(bDataInfo, i + start, 1));
}
start += (1 + iUnitLen);
dci.sNameEn = sNameEn.ToString();
dci.sUnit = sUnit.ToString();
dci.fScale = BitConverter.ToInt32(bDataInfo, start);
start += 4;
while (start < bDataInfo.Length && (bDataInfo[start] == (byte)0))
{
start++;
}
return(dci);
}
public string QueryDataChannelInfoHead(string sFile)
{
try
{
using (FileStream fs = new FileStream(sFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (BinaryReader br = new BinaryReader(fs, Encoding.Default))
{
br.BaseStream.Position = 0;
gfh = GetDataInfoHead(br.ReadBytes(GEO_FILE_HEADER_SIZE));
iChannelLength = BitConverter.ToInt16(br.ReadBytes(2), 0);
iChannelCount = BitConverter.ToInt16(br.ReadBytes(2), 0);
StringBuilder sbName = new StringBuilder();
dciL = new List <DataChannelInfo>();
byte[] bChannelData = br.ReadBytes(iChannelLength - 2);
int iGeometryRecordId = BitConverter.ToInt16(br.ReadBytes(2), 0);
//if (iGeometryRecordId != GEOMETRY_RECORD_ID)
//{
// return "1,文件格式错误！";
//}
for (int i = 0; i < iChannelLength - 2;)
{
DataChannelInfo dci = GetChannelInfo(bChannelData, ref i);
dciL.Add(dci);
sbName.Append(dci.sNameEn + ",");
}
sbName.Remove(sbName.Length - 1, 1);
br.Close();
fs.Close();
return("0," + sbName.ToString());
}
}
}
catch (Exception ex)
{
return("1,qc" + ex.Message);
}
}
/// <summary>
///
/// </summary>
/// <param name="sFile"></param>
/// <returns></returns>
public List <DataChannelInfo> GetDataChannel(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;
GEO_FILE_HEADER gfh = GetDataInfoHead(br.ReadBytes(GEO_FILE_HEADER_SIZE));
//添加通道信息
iChannelLength = BitConverter.ToInt16(br.ReadBytes(2), 0);
iChannelCount = BitConverter.ToInt16(br.ReadBytes(2), 0);
StringBuilder sbName = new StringBuilder();
List <DataChannelInfo> dciL = new List <DataChannelInfo>();
byte[] bChannelData = br.ReadBytes(iChannelLength - 2);
for (int j = 0; j < iChannelLength - 2;)
{
DataChannelInfo dci = GetChannelInfo(bChannelData, ref j);
dciL.Add(dci);
if (dciL.Count > iChannelCount)
{
break;
}
//if (iType == 10)
//{
// if (dci.sNameEn.ToLower().Contains("null"))
// {
// break;
// }
//}
}
return(dciL);
}
}
}
/// <summary>
/// 将GEO文件转换为CIT文件
/// </summary>
/// <param name="geoFile">GEO文件路径</param>
/// <param name="citFile">CIT文件路径</param>
/// <param name="citDataHeadInfo">cit头部信息</param>
/// <returns>成功：true，失败：false</returns>
public bool ConvertData(string geoFile, string citFile, FileInformation citDataHeadInfo)
{
try
{
int type = 1;
//10号车通道对应表
if (citDataHeadInfo.sTrain.Contains("999307"))
{
type = 307;//iType=307时，geo转换有特殊情况
}
int iPostion = 18;
QueryDataChannelInfoHead(geoFile);
string mileageRange = GetExportDataMileageRange(geoFile);
mileageRange = mileageRange.Substring(2);
float startMileage = float.Parse(mileageRange.Substring(0, mileageRange.IndexOf("-")));
float endMileage = float.Parse(mileageRange.Substring(mileageRange.IndexOf("-") + 1));
if (citDataHeadInfo.iKmInc == 0)
{
if (endMileage < startMileage)
{
float temp = startMileage;
startMileage = endMileage;
endMileage = temp;
}
}
else
{
if (endMileage > startMileage)
{
float temp = startMileage;
startMileage = endMileage;
endMileage = temp;
}
}
citDataHeadInfo.fkmFrom = startMileage;
citDataHeadInfo.fkmTo = endMileage;
using (FileStream fs = new FileStream(geoFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (BinaryReader br = new BinaryReader(fs, Encoding.Default))
{
br.BaseStream.Position = 0;
gfh = GetDataInfoHead(br.ReadBytes(GEO_FILE_HEADER_SIZE));
//添加通道信息
iChannelLength = BitConverter.ToInt16(br.ReadBytes(2), 0);
iChannelCount = BitConverter.ToInt16(br.ReadBytes(2), 0);
citDataHeadInfo.iChannelNumber = 2 + channelMappingList.Count;
#region 通道定义
dciL = new List <DataChannelInfo>();
byte[] bChannelData = br.ReadBytes(iChannelLength - 2);
//读取通道
for (int j = 0; j < iChannelLength - 2;)
{
DataChannelInfo dci = GetChannelInfo(bChannelData, ref j);
dciL.Add(dci);
if (dciL.Count > iChannelCount)
{
break;
}
if (type == 10)
{
if (dci.sNameEn.ToLower().Contains("null"))
{
break;
}
}
}
//通道匹配
int channelID = 2;
List <int> listID = new List <int>();
List <ChannelDefinition> channelList = new List <ChannelDefinition>();
channelList.Add(new ChannelDefinition {
sID = 1, sNameEn = "Km", sNameCh = "Km", fScale = 1.0f, fOffset = 0.0f, sUnit = ""
});
channelList.Add(new ChannelDefinition {
sID = 2, sNameEn = "Meter", sNameCh = "Meter", fScale = 4.0f, fOffset = 0.0f, sUnit = ""
});
for (int i = 0; i < channelMappingList.Count; i++)
{
for (int j = 0; j < dciL.Count; j++)
{
if (dciL[j].sNameEn.Equals(channelMappingList[i].sGEO))
{
listID.Add(j);
ChannelDefinition channelInfoItem = new ChannelDefinition();
channelInfoItem.sID = channelID;
channelInfoItem.sNameEn = channelMappingList[i].sCIT;
channelInfoItem.sNameCh = channelMappingList[i].sChinese;
channelInfoItem.fScale = dciL[j].fScale;
channelInfoItem.fOffset = 0.0f;
channelInfoItem.sUnit = dciL[j].sUnit;
channelList.Add(channelInfoItem);
++channelID;
break;
}
}
}
#endregion
#region 通道数据
List <byte[]> bytes = GetChannelData(br, gfh, type, listID, iPostion);
#endregion
citHelper.WriteCitFile(citFile, citDataHeadInfo, channelList, "", bytes);
br.Close();
}
fs.Close();
}
return(true);
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
