public string LoadFromFile(string fileName, out string header)
{
string filePath = null;
int numPoints = 0;
header = "";
try {
String wrkDir = Shell.GetWorkingDir(Shell.CurrentShellId);
if (String.IsNullOrWhiteSpace(wrkDir))
{
wrkDir = Project.GetProjectDir();
}
filePath = Path.Combine(wrkDir, fileName);
} catch (Exception) {
return("Error: bad file name:" + filePath);
}
System.IO.StreamReader file = null;
try {
file = new System.IO.StreamReader(filePath);
} catch (Exception) {
return("Error: bad file name:" + filePath);
}
try {
lock (PointList)
{
for (; ;)
{
try {
string s = file.ReadLine();
if (s == null)
{
break;
}
if (s.StartsWith("#") && (s.Length > 1))
{
header = s.Substring(1);
continue;
}
string[] ary = s.Split(DataFileParameterSeparators);
if (ary.Length > 0)
{
List <double> a = new List <double>();
for (int k = 0; k < ary.Length; k++)
{
double d = 0.0;
if (String.IsNullOrWhiteSpace(ary[k]))
{
d = Double.NaN;
}
else
{
Double.TryParse(ary[k], out d);
}
a.Add(d);
}
++numPoints;
if ((numPoints + 10) > CacheSize)
{
CacheSize = numPoints + 10;
}
AddPoint(a);
}
} catch (Exception) {
break;
}
}
}
} catch (Exception) {
}
try {
if (file != null)
{
file.Close();
}
} catch (Exception) {
}
return(filePath);
}
// Dump in text csv format.
public string DumpToFile(string fileNamePath, bool zeroTimeBase, string header)
{
string filePath = null; double timeBase = 0.0; bool isStart = true;
// fileNamePath may be a path.
try {
String wrkDir = Shell.GetWorkingDir(Shell.CurrentShellId);
if (String.IsNullOrWhiteSpace(wrkDir))
{
wrkDir = Project.GetProjectDir();
}
// This will take care of combinging a mixture of absolute & relative paths.
filePath = Path.Combine(wrkDir, fileNamePath);
} catch (Exception) {
filePath = "tmpdc" + TmpCounter++;
}
System.IO.StreamWriter file = null;
try {
file = new System.IO.StreamWriter(filePath);
} catch (Exception) {
return("Error: bad file name:" + filePath);
}
try {
lock (PointList)
{
if (!String.IsNullOrWhiteSpace(header))
{
file.WriteLine('#' + header);
}
foreach (List <double> p in PointList)
{
String s = "";
bool isFirst = true;
if (isStart)
{
isStart = false;
timeBase = p[0];
}
foreach (double r in p)
{
double v = r;
if (isFirst)
{
isFirst = false;
if (zeroTimeBase)
{
v -= timeBase;
}
}
else
{
s += ",";
}
if (!Double.IsNaN(v))
{
s += v.ToString();
}
}
file.WriteLine(s);
}
}
} catch (Exception) {
}
try {
if (file != null)
{
file.Close();
}
} catch (Exception) {
}
return(filePath);
}
