/// <summary>
/// 从闪电序列中找出制定地名的闪电数据
/// </summary>
/// <param name="_strikes"></param>
/// <returns></returns>
private int CalculateNumber(IEnumerable <BaseStrikeChina> _strikes, AdministrativeLevel _administrativeLevelEnum, string _areaName)
{
int resultNum = 0;
switch (_administrativeLevelEnum)
{
case AdministrativeLevel.Country:
resultNum = _strikes.Where(r => r.Province == _areaName).Count();
break;
case AdministrativeLevel.Province:
resultNum = _strikes.Where(r => r.City == _areaName).Count();
break;
case AdministrativeLevel.City:
resultNum = _strikes.Where(r => r.City == _areaName).Count();
break;
case AdministrativeLevel.Village:
throw new ArgumentOutOfRangeException("不存在比县更小的行政级别");
default:
throw new ArgumentOutOfRangeException("未知的行政区划级别");
}
return(resultNum);
}
/// <summary>
/// 根据行政区划和
/// </summary>
/// <param name="_strikes"></param>
/// <param name="_administrativeLevelEnum"></param>
/// <returns></returns>
private List <string> ProcessAreaList(IEnumerable <BaseStrikeChina> _strikes, AdministrativeLevel _administrativeLevelEnum)
{
List <string> areaList = new List <string>();
if (_administrativeLevelEnum == AdministrativeLevel.Country)
{
areaList = _strikes.Select(r => r.Province).Distinct().ToList();
}
else if (_administrativeLevelEnum == AdministrativeLevel.Province)
{
areaList = _strikes.Select(r => r.City).Distinct().ToList();
}
else if (_administrativeLevelEnum == AdministrativeLevel.City)
{
areaList = _strikes.Select(r => r.City).Distinct().ToList();
}
else if (_administrativeLevelEnum == AdministrativeLevel.County)
{
return(null);
//无下级单位
throw new ArgumentOutOfRangeException("县无下级行政区划单位");
}
else//默认为市级
{
areaList = _strikes.Select(r => r.City).Distinct().ToList();
}
return(areaList);
}
/// <summary>
/// 计算下级地区闪电分布情况。
/// </summary>
/// <param name="_strikes"></param>
/// <returns></returns>
public Dictionary <string, int> ProcessAreaDistribution(IEnumerable <BaseStrikeChina> _strikes, AdministrativeLevel _administrativeLevelEnum)
{
//if (_administrativeLevelEnum)
//{
Dictionary <string, int> resultDic = new Dictionary <string, int>();
List <string> areaList = new List <string>();
if (_strikes != null && _strikes.Any())
{
areaList = ProcessAreaList(_strikes, _administrativeLevelEnum);
if (areaList != null)
{
foreach (var tmp in areaList)
{
int resultNum = CalculateNumber(_strikes, _administrativeLevelEnum, tmp);
resultDic.Add(tmp, resultNum);
}
return(resultDic);
}
else
{
return(null);
}
}
else
{
throw new ArgumentException("下级地区分布描述处理，序列中不包含闪电。");
}
}