/// <summary>
/// 将频谱扫描参数header，扫描项列表entries保存到文件fileName
/// </summary>
/// <param name="fileName"></param>
/// <param name="entries"></param>
/// <param name="header"></param>
internal static void Save_Csv_Spectrum(string fileName, PointF[] entries, CsvReport_Spctrum_Header header)
{
StreamWriter sw = null;
try
{
sw = new StreamWriter(fileName, false, Encoding.ASCII);
string s1;
s1 = "params " +
header.Start.ToString("0.#") + " " +
header.Stop.ToString("0.#") + " " +
header.RBW.ToString() + " " +
header.ATT.ToString();
sw.WriteLine(header.Mac_Desc);
sw.WriteLine(header.Date_Time);
sw.WriteLine(s1);
sw.WriteLine("Frequency(MHz), Field_Value(dBm)");
for (int i = 0; i < entries.Length; i++)
{
sw.WriteLine(entries[i].X.ToString("0.0000000") + ", " + entries[i].Y.ToString("0.0000000"));
}
sw.Flush();
sw.Close();
sw.Dispose();
} catch {
if (sw != null)
{
sw.Close();
sw.Dispose();
}
}
}
/// <summary>
/// 从频谱分析的CSV文件fileName读取信息，并将头部信息填充到header，将扫描项填充到列表entries
/// 若成功则返回TRUE，
/// 若出现文件被破坏（格式），或者读文件异常，转换异常等，则返回FALSE
/// </summary>
/// <param name="entries"></param>
/// <param name="header"></param>
/// <returns></returns>
internal static bool Read_Csv_Spectrum(string fileName, out List <PointF> entries, out CsvReport_Spctrum_Header header)
{
int ln;
string sLine;
char[] chars;
string[] sArray;
PointF spc_entry;
StreamReader sr = null;
//文件损坏指示
bool bCrashed = false;
try
{
//构造CSV文件的头部对象
header = new CsvReport_Spctrum_Header();
//建立流
sr = new StreamReader(fileName, Encoding.ASCII);
//略过第一行
sr.ReadLine();
//读取第二行的日期与时间值
header.Date_Time = sr.ReadLine();
//读取第三行，测试参数
//从左到右，以params开头，每个参数项以空格隔开
//依次为开始频率、结束频率、RBW、ATT
chars = new char[1];
chars[0] = ' ';
sArray = sr.ReadLine().Split(chars);
header.Start = float.Parse(sArray[1]);
header.Stop = float.Parse(sArray[2]);
header.RBW = int.Parse(sArray[3]);
header.ATT = int.Parse(sArray[4]);
//略过第四
sr.ReadLine();
//一行文本包含的扫描项数量
ln = 2;
chars[0] = ',';
entries = new List <PointF>();
//从第五行开始，读取扫描项数据
sLine = sr.ReadLine();
while (!String.IsNullOrEmpty(sLine))
{
sArray = sLine.Split(chars);
if (sArray.Length != ln)
{
bCrashed = true;
break;
}
spc_entry = new PointF();
spc_entry.X = float.Parse(sArray[0]);
spc_entry.Y = float.Parse(sArray[1]);
entries.Add(spc_entry);
//读取下一行，直到文件结束
sLine = sr.ReadLine();
}
sr.Close();
sr.Dispose();
}
catch
{
entries = null;
header = null;
bCrashed = true;
if (sr != null)
{
sr.Close();
sr.Dispose();
}
}
//返回值
return(!bCrashed);
}
