/// <summary>
/// Return the sample value of the channel given as argument at the sample index given as argument
/// </summary>
/// <param name="ChannelName">Name of the channel to search</param>
/// <param name="SampleIndex">Index of sample</param>
/// <returns>Channel value at the sample index</returns>
/// <remarks>Return NaN if the channel is not found or if the sample index doesn't exist</remarks>
public double Get_ChannelValueAtIndex(string ChannelName, int SampleIndex)
{
GW_DataChannel oChan = Get_DataChannel(ChannelName);
if (!(oChan == null))
{
switch (DataSamplingMode)
{
case SamplingMode.SingleRate:
if (SampleIndex >= 0 && SampleIndex < oChan.Values.Count)
{
return(oChan.Values[SampleIndex]);
}
break;
case SamplingMode.MultipleRates:
if (SampleIndex >= 0 && SampleIndex < oChan.Samples.Count)
{
return(oChan.Samples[SampleIndex].SampleValue);
}
break;
}
}
return(double.NaN);
}
/// <summary>
/// Return the sample value of the channel given as argument at the time value given as argument
/// </summary>
/// <param name="ChannelName">Name of the channel to search</param>
/// <param name="TimeValue">Time value to search</param>
/// <returns>Channel value at the time</returns>
/// <remarks>Return NaN if the channel is not found or if the time value doesn't exist</remarks>
public double Get_ChannelValueAtTime(string ChannelName, double TimeValue)
{
GW_DataChannel oChan = Get_DataChannel(ChannelName);
if (!(oChan == null))
{
switch (DataSamplingMode)
{
case SamplingMode.SingleRate:
{
int TimeIndex = Get_SampleIndexAtTime(TimeValue);
if (TimeIndex >= 0 && TimeIndex < oChan.Values.Count)
{
return(oChan.Values[TimeIndex]);
}
}
break;
case SamplingMode.MultipleRates:
{
for (int iTime = 0; iTime < oChan.Samples.Count; iTime++)
{
if (oChan.Samples[iTime].SampleTime > TimeValue)
{
if (!(iTime == 0))
{
return(oChan.Samples[iTime - 1].SampleValue);
}
}
}
}
break;
}
}
return(double.NaN);
}
/// <summary>
/// Default constructor
/// </summary>
public GW_DataFile()
{
DataSamplingMode = SamplingMode.SingleRate;
Time = new GW_DataChannel("Time");
Time.ParentDataFile = this;
Channels = new GW_DataChannelList(this);
TimeBufferSize = -1;
StepTimeMin = 0;
StepTimeMax = 0;
CoordConversionUpdateRequested = false;
//XML Data file default properties
DataStartTime = DateTime.Now;
UserComment = "";
XmlDataFileCustomProperties = new List <GW_XmlDataFileCustomProperty>();
}
/// <summary>
/// Read a data file
/// </summary>
/// <param name="fPath">Path of the file to read</param>
/// <returns>Reading error flag: True = No Error / False = Error</returns>
/// <remarks>
/// CSV file type: comma separtor ';'
/// </remarks>
public bool Load_DataFile(string fPath)
{
if (fPath == null)
{
return(false);
}
bool bFirstLine = true;
StreamReader SR = new StreamReader(fPath);
while (!SR.EndOfStream)
{
string Line = SR.ReadLine();
string[] Data = Line.Split(';');
bool bFirstVal = true;
if (bFirstLine)
{
bFirstLine = false;
for (int i = 0; i < Data.Length; i++)
{
if (!(Data[i].Equals("")))
{
if (!bFirstVal)
{
GW_DataChannel oChan = new GW_DataChannel(Data[i]);
Channels.Add(oChan);
}
else
{
bFirstVal = false; //First value is time
}
}
}
}
else
{
int ValCnt = 0;
for (int i = 0; i < Data.Length; i++)
{
if (!(Data[i].Equals("")))
{
double Val = 0;
if (double.TryParse(Data[i], out Val))
{
if (!bFirstVal) //Data value
{
Channels[i - 1].Add_ChannelValue(Val);
ValCnt++;
}
else //Time value
{
Time.Add_ChannelValue(Val);
bFirstVal = false;
if (Time.Values.Count > 1)
{
double StepTime = Val - Time.Values[Time.Values.Count - 2];
if (Time.Values.Count == 2)
{
StepTimeMin = StepTime;
StepTimeMax = StepTime;
}
else
{
if (StepTime < StepTimeMin)
{
StepTimeMin = StepTime;
}
if (StepTime > StepTimeMax)
{
StepTimeMax = StepTime;
}
}
}
}
}
else
{
return(false); //Not a number
}
}
}
//Missing data ?
if (!(ValCnt == Channels.Count))
{
return(false); //Missing value
}
}
}
SR.Close();
SR = null;
return(true);
}
/// <summary>
/// Read a XML data file
/// </summary>
/// <param name="fPath">Path of the XML file to read</param>
/// <param name="HeaderOnly">Read only data file header flag</param>
/// <returns>Reading error flag: True = No Error / False = Error</returns>
public bool Load_XmlDataFile(string fPath, bool HeaderOnly)
{
XmlNode xDataFile, xHeader, xChannels, xSamples;
XmlNode xElemParent, xElemChild;
this.DataSamplingMode = SamplingMode.MultipleRates;
try
{
XmlDocument oXDoc = new XmlDocument();
oXDoc.Load(fPath);
xDataFile = oXDoc.SelectSingleNode("XmlGraphDataFile");
#region XML Data file header
//Header reading
xHeader = xDataFile.SelectSingleNode("DataFileHeader");
//Data file start time
xElemChild = xHeader.SelectSingleNode("DataStartTime");
this.DataStartTime = DateTime.FromBinary(long.Parse(xElemChild.InnerText));
//User comment
xElemChild = xHeader.SelectSingleNode("DataUserComment");
this.UserComment = xElemChild.InnerText;
//Data file user properties
xElemParent = xHeader.SelectSingleNode("DataCustomProperties");
foreach (XmlNode xProp in xElemParent.ChildNodes)
{
GW_XmlDataFileCustomProperty oProp = new GW_XmlDataFileCustomProperty();
oProp.Name = xProp.Attributes["CustomPropertyName"].Value;
string PropType = xProp.Attributes["CustomPropertyType"].Value;
oProp.ParsePropertyStringValue(xProp.InnerText, PropType);
this.XmlDataFileCustomProperties.Add(oProp);
}
#endregion
#region XML Data files channels
//Data reading
if (!HeaderOnly)
{
xChannels = xDataFile.SelectSingleNode("DataFileChannels");
foreach (XmlNode xChan in xChannels.ChildNodes)
{
GW_DataChannel oChan = new GW_DataChannel(SamplingMode.MultipleRates);
//Read channel properties
oChan.KeyId = int.Parse(xChan.Attributes["ChanId"].Value);
xElemChild = xChan.SelectSingleNode("ChannelName");
oChan.Name = xElemChild.InnerText;
xElemChild = xChan.SelectSingleNode("ChannelDescription");
oChan.Description = xElemChild.InnerText;
xElemChild = xChan.SelectSingleNode("ChannelUnit");
oChan.Unit = xElemChild.InnerText;
xElemChild = xChan.SelectSingleNode("ValueFormat");
oChan.GraphicFormat.SetSerieValueFormatFromXmlNode(xElemChild);
xElemParent = xChan.SelectSingleNode("ChannelReferenceLines");
if (!(xElemParent == null))
{
foreach (XmlNode xRefLine in xElemParent.ChildNodes)
{
GraphReferenceLine oLine = new GraphReferenceLine();
if (oLine.Read_GraphLineXmlNode(xRefLine))
{
oChan.ChannelReferenceLines.Add(oLine);
}
}
}
//Read channel samples
xSamples = xChan.SelectSingleNode("ChannelSamples");
foreach (XmlNode xSerieSample in xSamples.ChildNodes)
{
SerieSample sSample = new SerieSample();
sSample.SampleTime = double.Parse(xSerieSample.Attributes["ST"].Value);
sSample.SampleValue = double.Parse(xSerieSample.InnerText);
oChan.Samples.Add(sSample);
if (oChan.Samples.Count == 1)
{
oChan.Min = sSample.SampleValue;
oChan.Max = sSample.SampleValue;
}
else
{
if (sSample.SampleValue < oChan.Min)
{
oChan.Min = sSample.SampleValue;
}
if (sSample.SampleValue > oChan.Max)
{
oChan.Max = sSample.SampleValue;
}
}
}
this.Channels.Add(oChan);
}
}
#endregion
}
catch
{
return(false);
}
return(true);
}
