/// <summary>
/// 根据里程信息获取采样值，换算为采样点个数，同时获取坐标位置
/// </summary>
/// <param name="mileage">里程，单位为米</param>
/// <param name="locationPostion"></param>
/// <returns>采样点个数</returns>
public long GetLocationSampleCount(float mileage, ref long locationPostion)
{
if (IsLoadIndex)
{
//if (CitFile.iKmInc == 0)
//{
// Milestone stone= MileageFix.CalcMilestoneByFixedMilestone(mileage);
// //Milestone stone = _allStone.FindLast(p => p.GetMeter() <= mileage);
// if (stone != null)
// {
// locationPostion = stone.mFilePosition;
// }
// else
// {
// locationPostion = -1;
// }
//}
//else
//{
// //Milestone stone = _allStone.FindLast(p => p.GetMeter() >= mileage);
// long postion = CitFileProcess.GetCurrentPositionByMilestone(_citFilePath, mileage, true);
// if (postion != -1)
// {
// locationPostion = postion;
// }
// else
// {
// locationPostion = -1;
// }
//}
Milestone stone = MileageFix.CalcMilestoneByFixedMilestone(mileage);
if (stone != null)
{
locationPostion = stone.mFilePosition;
}
else
{
locationPostion = -1;
}
}
else
{
locationPostion = CitFileProcess.GetCurrentPositionByMilestone(_citFilePath, mileage, true);
}
if (locationPostion != -1)
{
return(GetLocationSampleCount(locationPostion));
}
return(-1);
}
/// <summary>
/// 根据索引导出CIT文件
/// </summary>
/// <param name="filePath">cit文件路径</param>
/// <param name="startMileage">开始里程(公里)</param>
/// <param name="endMileage">结束里程(公里)</param>
/// <returns>成功：返回导出路径，失败：空字符串</returns>
public string ExportCITFileAndIndexData(string filePath, double startMileage, double endMileage)
{
string destFile = filePath + "\\" +
Path.GetFileNameWithoutExtension(CitFilePath) + "_" +
startMileage.ToString() + "-" + endMileage.ToString() + ".cit";
if (_citFile.iKmInc == 1 && startMileage < endMileage)
{
double change = startMileage;
startMileage = endMileage;
endMileage = change;
}
if (_citFile != null && MileageFix.FixData.Count > 0)
{
if (_citFile.iKmInc == 0)
{
if (startMileage >= MileageFix.FixData[MileageFix.FixData.Count - 1].MarkedEndPoint.UserSetMileage / 1000 ||
endMileage <= MileageFix.FixData[0].MarkedStartPoint.UserSetMileage / 1000)
{
return("");
}
if (startMileage < (MileageFix.FixData[0].MarkedStartPoint.UserSetMileage / 1000))
{
startMileage = (MileageFix.FixData[0].MarkedStartPoint.UserSetMileage / 1000);
}
if (endMileage > MileageFix.FixData[MileageFix.FixData.Count - 1].MarkedEndPoint.UserSetMileage / 1000)
{
endMileage = MileageFix.FixData[MileageFix.FixData.Count - 1].MarkedEndPoint.UserSetMileage / 1000;
}
}
else if (_citFile.iKmInc == 1)
{
if (endMileage >= MileageFix.FixData[MileageFix.FixData.Count - 1].MarkedEndPoint.UserSetMileage / 1000 ||
startMileage <= MileageFix.FixData[0].MarkedStartPoint.UserSetMileage / 1000)
{
return("");
}
if (startMileage > MileageFix.FixData[0].MarkedStartPoint.UserSetMileage / 1000)
{
startMileage = MileageFix.FixData[0].MarkedStartPoint.UserSetMileage / 1000;
}
if (endMileage < MileageFix.FixData[MileageFix.FixData.Count - 1].MarkedEndPoint.UserSetMileage / 1000)
{
endMileage = MileageFix.FixData[MileageFix.FixData.Count - 1].MarkedEndPoint.UserSetMileage / 1000;
}
}
Milestone startStone = new Milestone();
Milestone endStone = new Milestone();
startStone = MileageFix.CalcMilestoneByFixedMilestone((float)startMileage * 1000);
endStone = MileageFix.CalcMilestoneByFixedMilestone((float)endMileage * 1000);
if (startStone.mFilePosition != -1 && endStone.mFileEndPostion != -1)
{
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
}
List <double[]> channelData = CitFileProcess.GetAllChannelDataInRange(_citFilePath, startStone.mFilePosition, endStone.mFileEndPostion);
List <ChannelDefinition> channelDefinitionList = CitFileProcess.GetChannelDefinitionList(_citFilePath);
if (CitFileProcess.WriteCitFile(destFile, CitFile, channelDefinitionList, "", channelData))
{
CitFileProcess.SetKmFrom(destFile, (float)startStone.GetMeter() / 1000);
CitFileProcess.SetKmTo(destFile, (float)endStone.GetMeter() / 1000);
string indexFile = destFile.Replace(".cit", ".idf");
IOperator newOperator = new IndexOperator();
newOperator.IndexFilePath = indexFile;
//IndexOperator.CreateDB(indexFile);
long fileHead = FileDataOffset.GetSamplePointStartOffset(channelData.Count, 4);
AddNewIndexData(destFile, newOperator, fileHead, startStone.mFilePosition, endStone.mFileEndPostion, channelData.Count);
AddInvaildData(newOperator, fileHead, startStone.mFilePosition, endStone.mFileEndPostion, channelData.Count);
return(destFile);
}
return("");
}
return("");
}
else
{
return(ExportOnlyCITFile(destFile, startMileage, endMileage));
}
}
