/// <summary>
/// to RINEX String，自动采用观测文件内容更新时间。
/// </summary>
/// <param name="obsFile"></param>
/// <param name="minIntervalSeconds">最小采样率</param>
public string GetRinexString(RinexObsFile obsFile, double version, int minIntervalSeconds = 0)
{
if (obsFile == null || obsFile.Count == 0)
{
return("");
}
this.Header = obsFile.Header;
obsFile.Header.StartTime = obsFile[0].ReceiverTime;
if (obsFile.Count > 1)
{
obsFile.Header.EndTime = obsFile[obsFile.Count - 1].ReceiverTime;
obsFile.Header.Interval = (obsFile[1].ReceiverTime - obsFile[0].ReceiverTime);
}
StringBuilder sb = new StringBuilder();
sb.Append(ObsHeaderToRinexString(obsFile.Header, version));
//更新采样率
if (obsFile.Header.Interval < minIntervalSeconds)
{
obsFile.Header.Interval = minIntervalSeconds;
}
RinexEpochObservation prevEpochObs = null;
int i = 0;
foreach (var item in obsFile.ToArray())
{
if (item.Count == 0)
{
continue;
}
if (prevEpochObs == null)
{
prevEpochObs = item;
} //第一次
var differ = item.ReceiverTime - prevEpochObs.ReceiverTime;
if (differ >= minIntervalSeconds || i == 0)
{
if (version >= 3)
{
sb.Append(GetRecordStringV3(item));
}
else
{
sb.Append(GetRecordStringV2(item));
}
prevEpochObs = item;//roll
}
i++;
}
return(sb.ToString());
}
/// <summary>
/// 写一个观测历元
/// </summary>
/// <param name="epochObs"></param>
public void WriteEpochObservation(RinexEpochObservation epochObs)
{
string rinex = null;
if (Version >= 3)
{
rinex = GetRecordStringV3(epochObs);
}
else
{
rinex = GetRecordStringV2(epochObs);
}
Writer.Write(rinex);
}
/// <summary>
/// 一个历元观测量
/// </summary>
/// <param name="epochObs"></param>
/// <returns></returns>
public string GetRecordStringV3(RinexEpochObservation epochObs)
{
if (epochObs.Count == 0)
{
return("");
}
var prns = GetOutputPrns(epochObs);
StringBuilder sb = new StringBuilder();
var OneBlankSpace = " ";
sb.Append("> ");
var epoch = epochObs.ReceiverTime;
var firstLine = epoch.Year.ToString("0000") //四位数的年
+ OneBlankSpace + epoch.Month.ToString("00")
+ OneBlankSpace + epoch.Day.ToString("00")
+ OneBlankSpace + epoch.Hour.ToString("00")
+ OneBlankSpace + epoch.Minute.ToString("00")
+ OneBlankSpace + epoch.Seconds.ToString("00.0000000")//F11.7
+ StringUtil.FillSpaceLeft(epochObs.EpochFlag + "", 3)
+ StringUtil.FillSpaceLeft(prns.Count + "", 3)
+ StringUtil.FillSpaceLeft("", 6)
+ StringUtil.FillSpaceLeft(epochObs.ReceiverClockOffset.ToString("0.000000000000"), 15)
;
sb.AppendLine(firstLine);
foreach (var prn in prns)
{
var sat = epochObs[prn];
sb.Append(prn.ToString());
var obstypes = ObsCodes[prn.SatelliteType];
foreach (var type in obstypes)
{
var val = sat.TryGetObsValue(type);
sb.Append(ToRinexValueString(val));
}
sb.AppendLine();
}
return(sb.ToString());
}
/// <summary>
/// 获取将要输出的卫星列表
/// </summary>
/// <param name="epochObs"></param>
/// <returns></returns>
public List <SatelliteNumber> GetOutputPrns(RinexEpochObservation epochObs)
{
return(epochObs.Prns.Where(m => ObsCodes.Keys.Contains(m.SatelliteType)).ToList());
}
/// <summary>
/// 一个历元观测量
/// </summary>
/// <param name="epochObs"></param>
/// <returns></returns>
public string GetRecordStringV2(RinexEpochObservation epochObs)
{
if (epochObs.Count == 0)
{
return("");
}
var prns = GetOutputPrns(epochObs);
StringBuilder sb = new StringBuilder();
var OneBlankSpace = " ";
sb.Append(OneBlankSpace); //第一个为空格
var epoch = epochObs.ReceiverTime;
var firstLine = epoch.SubYear.ToString("00") //两位数的年
+ OneBlankSpace + epoch.Month.ToString("00")
+ OneBlankSpace + epoch.Day.ToString("00")
+ OneBlankSpace + epoch.Hour.ToString("00")
+ OneBlankSpace + epoch.Minute.ToString("00")
+ OneBlankSpace + epoch.Seconds.ToString("00.0000000")//F11.7
+ StringUtil.FillSpaceLeft(epochObs.EpochFlag + "", 3)
+ StringUtil.FillSpaceLeft(prns.Count + "", 3);
sb.Append(firstLine);
var firstEnd = StringUtil.FillSpaceLeft(epochObs.ReceiverClockOffset.ToString("0.000000000"), 12);
//卫星列表
int satIndex = 0;
//var prns = epochObs.Prns;
int satCount = prns.Count;
int maxSatCountInLine = 12;
StringBuilder line = new StringBuilder();
foreach (var item in prns)
{
line.Append(item.ToString());
satIndex++;
//卫星数量小于maxSatCountInLine个，且到最后一个时。
if (satIndex == satCount && satCount < maxSatCountInLine)
{
AppendObsFirstEnd(sb, firstEnd, line);
}
//卫星数量大于等于12，且到了12的倍数个时
if (satIndex % maxSatCountInLine == 0)
{
if (satIndex / maxSatCountInLine == 1)//第一行
{
AppendObsFirstEnd(sb, firstEnd, line);
}
else//第 1 行以后
{
AppendToString(sb, line);
}
//如果后面还有卫星，则应该换行继续。
if (satIndex < satCount)
{
sb.AppendLine();
sb.Append(StringUtil.Fill("", 32));
}
}
//最后一颗卫星,全部上缴
if (satIndex == satCount)
{
AppendToString(sb, line);
}
}
//结束行
sb.AppendLine();
//内容部分
var obsCodes = Header.GetObsCodesV2();
foreach (var prn in prns)//遍历每一颗卫星
{
var obs = epochObs[prn];
//一行只能记录5个，超出后换行
int index = 0;
int leftCount = obsCodes.Count;
foreach (var type in obsCodes)//遍历每一个类型 如 C1，L1
{
var val = obs.TryGetObsValue(type);
if ((val == null || val.Value == 0) && IsUseXCodeAsPLWhenEmpty)
{
if (type == "L2")
{
val = obs.PhaseB;
}
else if (type == "P2")
{
val = obs.RangeB;
}
}
var str = ToRinexValueString(val);
sb.Append(str);
index++;
leftCount--;
if (index >= 5 && leftCount > 0)
{
sb.AppendLine();
index = 0;
}
}
sb.AppendLine();
}
return(sb.ToString());
}
