/// <summary>
/// Merges the this object and the given data set
/// <paramref name="other"/> into a new data set (while making a deep
/// copy of the data)
/// </summary>
/// <param name="other">
/// The data set to be merged into this one
/// </param>
/// <returns>
/// A data set containing all data in this object and
/// <paramref name="other"/>
/// </returns>
public Plot2Ddata Merge(Plot2Ddata other)
{
if (this.LogX != other.LogX || this.LogY != other.LogY)
{
throw new Exception("Data sets have incompatible logarithmic scaling options");
}
IList <XYvalues> mergedGroups = new List <XYvalues>(this.dataGroups.Length + other.dataGroups.Length);
mergedGroups.AddRange(this.dataGroups.Select(g => g.CloneAs()));
foreach (XYvalues otherGroup in other.dataGroups)
{
if (this.dataGroups.Any(g => g.Name == otherGroup.Name))
{
throw new NotSupportedException(String.Format(
"Group key '{0}' exists in both data sets. This is not supported.",
otherGroup.Name));
}
mergedGroups.Add(otherGroup.CloneAs());
}
Plot2Ddata result = new Plot2Ddata(mergedGroups.ToArray());
result.LogX = this.LogX;
result.LogY = this.LogY;
return(result);
}
/// <summary>
/// Creates a new data set where <see cref="LogY"/> is to true. Useful
/// for command chaining on the console.
/// </summary>
/// <returns>
/// A copy of this object where <see cref="LogY"/> equals true.
/// </returns>
public Plot2Ddata WithLogY()
{
var set = new Plot2Ddata(this);
set.LogY = true;
return(set);
}
/// <summary>
/// Copy constructor
/// </summary>
/// <param name="originalSet">
/// Object to be copied from.
/// </param>
private Plot2Ddata(Plot2Ddata originalSet)
: this()
{
this.dataGroups = originalSet.dataGroups;
this.LogX = originalSet.LogX;
this.LogY = originalSet.LogY;
}
/// <summary>
/// Single plot window:
/// Converts <see cref="Plot2Ddata"/> into an alive Gnuplot object.
/// </summary>
public static Gnuplot ToGnuplot(this Plot2Ddata _2DData, GnuplotPageLayout layout = null)
{
if (layout != null)
{
throw new NotImplementedException("todo");
}
Gnuplot gp = new Gnuplot();
_2DData.ToGnuplot(gp);
return(gp);
}
/// <summary>
/// Gnuplot plotting (single plot), automatic choice of gnuplot driver depending on
/// the current value of <see cref="UseCairoLatex"/>.
/// </summary>
public static object PlotNow(this Plot2Ddata _2DData)
{
using (Gnuplot gp = _2DData.ToGnuplot()) {
if (UseCairoLatex)
{
return(gp.PlotCairolatex());
}
else
{
return(gp.PlotGIF());
}
}
}
/// <summary>
/// Creates an xy-plot form a table
/// </summary>
/// <param name="Tab"></param>
/// <param name="RowSelector">
/// Selects, which table row will end up in which graph, resp. data group (<see cref="Plot2Ddata.dataGroups"/>).
/// If the returned name is null, or if an exception is thrown, the respective data row will not be included in any graph.
/// </param>
/// <param name="NoOfSweeps">
/// To sweep over the table multiple times, e.g. for selecting more than one value per row.
/// </param>
/// <returns></returns>
public static Plot2Ddata ToPlot(this DataTable Tab,
PlotRowSelectorEx RowSelector, int NoOfSweeps)
{
Plot2Ddata ret = new Plot2Ddata();
// loop over table rows
// ====================
for (int iSweep = 0; iSweep < NoOfSweeps; iSweep++)
{
string[] ColNames = Tab.GetColumnNames();
int L = Tab.Rows.Count;
int J = Tab.Columns.Count;
for (int i = 0; i < L; i++)
{
DataRow orgRow = Tab.Rows[i];
Dictionary <string, object> orgRowAsDict = new Dictionary <string, object>();
foreach (string ColName in ColNames)
{
object obj_ColName = orgRow[ColName];
if (obj_ColName == DBNull.Value)
{
orgRowAsDict.Add(ColName, null);
}
else
{
orgRowAsDict.Add(ColName, obj_ColName);
}
}
string groupName;
Solution.Gnuplot.PlotFormat graphFormat;
double xValue;
double yValue;
try {
RowSelector(iSweep, i, orgRowAsDict, out groupName, out graphFormat, out xValue, out yValue);
} catch (Exception e) {
Console.WriteLine("Exception in the selection test of row {0}: {1}, Message: {2}.", i, e.GetType().Name, e.Message);
groupName = null;
graphFormat = null;
xValue = 0.0;
yValue = 0.0;
}
if (groupName != null)
{
//double xValue = Convert.ToDouble(orgRowAsDict[ColName_ForXValues]);
//double yValue = Convert.ToDouble(orgRowAsDict[ColName_ForYValues]);
Plot2Ddata.XYvalues xyGroup = Array.Find(ret.dataGroups, xyG => xyG.Name.Equals(groupName));
if (xyGroup == null)
{
xyGroup = new Plot2Ddata.XYvalues(groupName);
ArrayTools.AddToArray(xyGroup, ref ret.dataGroups);
}
ArrayTools.AddToArray(xValue, ref xyGroup.Abscissas);
ArrayTools.AddToArray(yValue, ref xyGroup.Values);
xyGroup.Format = graphFormat;
}
}
}
// sort data
// =========
foreach (var xyGroup in ret.dataGroups)
{
Array.Sort(xyGroup.Abscissas, xyGroup.Values);
}
// return
// ======
return(ret);
}
/// <summary>
/// Creates an xy-plot form a table
/// </summary>
/// <param name="Tab"></param>
/// <param name="ColName_ForXValues">
/// Column name, where the values for the x-axis are taken.
/// </param>
/// <param name="ColName_ForYValues"></param>
/// <param name="ColName_GroupSelection">
/// Selects, which table row will end up in which graph, resp. data group (<see cref="Plot2Ddata.dataGroups"/>).
/// </param>
/// <returns></returns>
public static Plot2Ddata ToPlot(this DataTable Tab,
string ColName_ForXValues, string ColName_ForYValues,
params string[] ColName_GroupSelection)
{
Plot2Ddata ret = new Plot2Ddata();
// loop over table rows
// ====================
string[] ColNames = Tab.GetColumnNames();
int L = Tab.Rows.Count;
int J = Tab.Columns.Count;
for (int i = 0; i < L; i++)
{
DataRow orgRow = Tab.Rows[i];
Dictionary <string, object> orgRowAsDict = new Dictionary <string, object>();
foreach (string ColName in ColNames)
{
object obj_ColName = orgRow[ColName];
if (obj_ColName == DBNull.Value)
{
orgRowAsDict.Add(ColName, null);
}
else
{
orgRowAsDict.Add(ColName, obj_ColName);
}
}
string groupName = "";
try {
//groupName = GroupSelector(i, orgRowAsDict);
for (int iS = 0; iS < ColName_GroupSelection.Length; iS++)
{
groupName += ColName_GroupSelection[iS] + orgRow[ColName_GroupSelection[iS]].ToString();
if (iS < ColName_GroupSelection.Length - 1)
{
groupName += "--";
}
}
} catch (Exception e) {
Console.WriteLine("Exception in the selection test of row {0}: {1}, Message: {2}.", i, e.GetType().Name, e.Message);
groupName = null;
}
if (groupName != null)
{
double xValue = Convert.ToDouble(orgRowAsDict[ColName_ForXValues]);
double yValue = Convert.ToDouble(orgRowAsDict[ColName_ForYValues]);
Plot2Ddata.XYvalues xyGroup = Array.Find(ret.dataGroups, xyG => xyG.Name.Equals(groupName));
if (xyGroup == null)
{
xyGroup = new Plot2Ddata.XYvalues(groupName);
ArrayTools.AddToArray(xyGroup, ref ret.dataGroups);
}
ArrayTools.AddToArray(xValue, ref xyGroup.Abscissas);
ArrayTools.AddToArray(yValue, ref xyGroup.Values);
}
}
// sort data
// =========
foreach (var xyGroup in ret.dataGroups)
{
Array.Sort(xyGroup.Abscissas, xyGroup.Values);
}
// return
// ======
return(ret);
}
