public static List <IGPlotItem> CreatePlotItems(DataTable table, IAscendingIntegerCollection selectedColumns, G2DPlotStyleCollection templatePlotStyle)
{
int len = selectedColumns.Count;
int numColumns = table.DataColumnCount;
List <IGPlotItem> result = new List <IGPlotItem>();
ErrorBarPlotStyle unpairedPositiveError = null;
ErrorBarPlotStyle unpairedNegativeError = null;
AscendingIntegerCollection processedColumns = new AscendingIntegerCollection();
int idx;
for (int sci = 0; sci < len; sci++)
{
idx = selectedColumns[sci];
if (processedColumns.Contains(idx))
{
continue;
}
else
{
processedColumns.Add(idx);
}
Altaxo.Data.DataColumn ycol = table[idx];
Altaxo.Data.DataColumn xcol = table.DataColumns.FindXColumnOf(ycol);
XYColumnPlotData pa;
if (null != xcol)
{
pa = new XYColumnPlotData(xcol, ycol);
}
else
{
pa = new XYColumnPlotData(new Altaxo.Data.IndexerColumn(), ycol);
}
G2DPlotStyleCollection ps = templatePlotStyle != null? (G2DPlotStyleCollection)templatePlotStyle.Clone() : new G2DPlotStyleCollection();
bool foundMoreColumns = true;
for (idx = idx + 1; foundMoreColumns && idx < numColumns; idx++)
{
DataColumn col = table.DataColumns[idx];
switch (table.DataColumns.GetColumnKind(idx))
{
case ColumnKind.Label:
LabelPlotStyle labelStyle = new LabelPlotStyle(col);
ps.Insert(0, labelStyle);
break;
case ColumnKind.Err:
ErrorBarPlotStyle errStyle = new ErrorBarPlotStyle();
errStyle.PositiveErrorColumn = col as INumericColumn;
errStyle.NegativeErrorColumn = col as INumericColumn;
ps.Add(errStyle);
break;
case ColumnKind.pErr:
if (null != unpairedNegativeError)
{
unpairedNegativeError.PositiveErrorColumn = col as INumericColumn;;
unpairedNegativeError = null;
}
else
{
unpairedPositiveError = new ErrorBarPlotStyle();
unpairedPositiveError.PositiveErrorColumn = col as INumericColumn;
ps.Add(unpairedPositiveError);
}
break;
case ColumnKind.mErr:
if (null != unpairedPositiveError)
{
unpairedPositiveError.NegativeErrorColumn = col as INumericColumn;
unpairedPositiveError = null;
}
else
{
unpairedNegativeError = new ErrorBarPlotStyle();
unpairedNegativeError.NegativeErrorColumn = col as INumericColumn;
ps.Add(unpairedNegativeError);
}
break;
default:
foundMoreColumns = false;
break;
}
if (foundMoreColumns)
{
processedColumns.Add(idx);
}
}
result.Add(new XYColumnPlotItem(pa, ps));
}
return(result);
}
/// <summary>
/// Creates a list of plot items from data columns, using a template plot style.
/// </summary>
/// <param name="selectedColumns">Columns for which to create plot items.</param>
/// <param name="xColumnName">Name of the x column. If it is null or empty, or that column is not found in the table, the current assigned x column is used.</param>
/// <param name="templatePlotStyle">The template plot style used to create the basic plot item.</param>
/// <param name="processedColumns">On return, contains all columns that where used in creating the plot items. That are
/// not only the columns given in the first argument, but maybe also columns that are right to those columns in the table and have special kinds, like
/// labels, yerr, and so on.</param>
/// <param name="context">Property context used to determine default values, e.g. for the pen width or symbol size.</param>
/// <returns>List of plot items created.</returns>
public static List <IGPlotItem> CreatePlotItems(IEnumerable <DataColumn> selectedColumns, string xColumnName, G2DPlotStyleCollection templatePlotStyle, HashSet <DataColumn> processedColumns, Altaxo.Main.Properties.IReadOnlyPropertyBag context)
{
var result = new List <IGPlotItem>();
foreach (DataColumn ycol in selectedColumns)
{
if (processedColumns.Contains(ycol))
{
continue;
}
else
{
processedColumns.Add(ycol);
}
var table = DataColumnCollection.GetParentDataColumnCollectionOf(ycol);
Altaxo.Data.DataColumn xcol;
if (!string.IsNullOrEmpty(xColumnName) && null != table && table.ContainsColumn(xColumnName))
{
xcol = table[xColumnName];
}
else
{
xcol = null == table ? null : table.FindXColumnOf(ycol);
}
int groupNumber = table.GetColumnGroup(ycol);
var parentTable = DataTable.GetParentDataTableOf(table);
XYColumnPlotData pa;
if (null != xcol)
{
pa = new XYColumnPlotData(parentTable, groupNumber, xcol, ycol);
}
else
{
pa = new XYColumnPlotData(parentTable, groupNumber, new Altaxo.Data.IndexerColumn(), ycol);
}
G2DPlotStyleCollection ps = templatePlotStyle != null?templatePlotStyle.Clone() : new G2DPlotStyleCollection();
if (null == table)
{
continue;
}
ErrorBarPlotStyle unpairedPositiveError = null;
ErrorBarPlotStyle unpairedNegativeError = null;
bool foundMoreColumns = true;
for (int idx = 1 + table.GetColumnNumber(ycol); foundMoreColumns && idx < table.ColumnCount; idx++)
{
DataColumn col = table[idx];
switch (table.GetColumnKind(idx))
{
case ColumnKind.Label:
var labelStyle = new LabelPlotStyle(col, context);
ps.Insert(0, labelStyle);
break;
case ColumnKind.Err:
ErrorBarPlotStyle errStyle = new ErrorBarYPlotStyle(context)
{
CommonErrorColumn = col as INumericColumn
};
ps.Add(errStyle);
break;
case ColumnKind.pErr:
if (null != unpairedNegativeError)
{
unpairedNegativeError.PositiveErrorColumn = col as INumericColumn;
;
unpairedNegativeError = null;
}
else
{
unpairedPositiveError = new ErrorBarYPlotStyle(context)
{
UseCommonErrorColumn = false
};
unpairedPositiveError.PositiveErrorColumn = col as INumericColumn;
ps.Add(unpairedPositiveError);
}
break;
case ColumnKind.mErr:
if (null != unpairedPositiveError)
{
unpairedPositiveError.NegativeErrorColumn = col as INumericColumn;
unpairedPositiveError = null;
}
else
{
unpairedNegativeError = new ErrorBarYPlotStyle(context)
{
UseCommonErrorColumn = false
};
unpairedNegativeError.NegativeErrorColumn = col as INumericColumn;
ps.Add(unpairedNegativeError);
}
break;
default:
foundMoreColumns = false;
break;
}
if (foundMoreColumns)
{
processedColumns.Add(table[idx]);
}
}
result.Add(new XYColumnPlotItem(pa, ps));
}
return(result);
}