/// <summary>
/// 导出CIT文件
/// </summary>
/// <param name="filePath">文件路径</param>
/// <param name="filePath">导出路径</param>
/// <param name="startMileage">起始里程(单位：米)</param>
/// <param name="endMileage">结束里程(单位：米)</param>
/// <returns></returns>
public string ExportOnlyCITFile(string filePath, double startMileage, double endMileage)
{
try
{
if (_citFile != null)
{
long startPostion = -1;
long endPostion = -1;
startPostion = CitFileProcess.GetCurrentPositionByMilestone(_citFilePath, (float)startMileage, true);
endPostion = CitFileProcess.GetCurrentPositionByMilestone(_citFilePath, (float)endMileage, true);
if (startPostion == -1 || endPostion == -1)
{
return("");
}
if (CitFileProcess.WriteCitFile(filePath, _citFile, CitFileProcess.GetChannelDefinitionList(_citFilePath), ""))
{
if (startPostion > endPostion)
{
long temp = startPostion;
startPostion = endPostion;
endPostion = temp;
}
long sampleCount = CitFileProcess.GetSampleCountByRange(_citFilePath, startPostion, endPostion);
int sampleNumber = 5000;
if (sampleCount > sampleNumber)
{
long pageCount = (sampleCount / sampleNumber);
long pageEndPostion = 0;
for (int i = 0; i < pageCount; i++)
{
List <double[]> channelData = CitFileProcess.GetAllChannelDataInRange(_citFilePath, startPostion, sampleNumber, ref pageEndPostion);
startPostion = pageEndPostion;
CitFileProcess.WriteCitChannelData(filePath, channelData);
}
if (pageEndPostion < endPostion)
{
List <double[]> channelData = CitFileProcess.GetAllChannelDataInRange(_citFilePath, startPostion, endPostion);
CitFileProcess.WriteCitChannelData(filePath, channelData);
}
}
else
{
List <double[]> channelData = CitFileProcess.GetAllChannelDataInRange(_citFilePath, startPostion, endPostion);
CitFileProcess.WriteCitChannelData(filePath, channelData);
}
if (CitFileProcess.SetKmFrom(filePath, (float)startMileage / 1000) &&
CitFileProcess.SetKmTo(filePath, (float)endMileage / 1000))
{
return(filePath);
}
}
}
return(string.Empty);
}
catch (Exception ex)
{
throw ex;
}
}