/// <summary>気象レコードを線形補間する</summary>
/// <param name="wRecord1">気象レコード1</param>
/// <param name="wRecord2">気象レコード2</param>
/// <param name="dTime">補間する時刻</param>
/// <returns>補間した気象レコード</returns>
private WeatherRecord interpolateWRecord(WeatherRecord wRecord1, WeatherRecord wRecord2, DateTime dTime)
{
//両端と一致する場合は複製を返す
if (wRecord1.DataDTime == dTime) return (WeatherRecord)wRecord1.Clone();
else if (wRecord2.DataDTime == dTime)return (WeatherRecord)wRecord2.Clone();
//その他の場合は補間処理
WeatherRecord wRecord = new WeatherRecord();
double ts1 = (dTime - wRecord1.DataDTime).TotalHours;
double ts2 = (wRecord2.DataDTime - dTime).TotalHours;
ts1 = ts1 / (ts1 + ts2);
ts2 = 1.0 - ts1;
foreach (WeatherRecord.RecordType rt in Enum.GetValues(typeof(WeatherRecord.RecordType)))
{
WeatherData wd1 = wRecord1.GetData(rt);
WeatherData wd2 = wRecord2.GetData(rt);
WeatherData wd = new WeatherData();
//いずれかが欠測の場合は欠測
if (wd1.Source == WeatherData.DataSource.MissingValue ||
wd2.Source == WeatherData.DataSource.MissingValue) wd.Source = WeatherData.DataSource.MissingValue;
//その他の場合は推定（補間）値 //単純な線形補間では問題がある要素もある。直せ!
else wd.Source = WeatherData.DataSource.PredictedValue;
wd.Value = wd1.Value * ts1 + wd2.Value * ts2;
wRecord.SetData(rt, wd);
}
return wRecord;
}
/// <summary>気象データを設定する</summary>
/// <param name="rType">気象データの種類</param>
/// <param name="wData">気象データ</param>
public void SetData(RecordType rType, WeatherData wData)
{
if (data.ContainsKey(rType)) data[rType] = (WeatherData)wData.Clone();
else
{
data.Add(rType, (WeatherData)wData.Clone());
}
}