public static void AddPieChart(Group elements, float x, float y)
{
AddCaptionAndRectangle(elements, "Pie Chart", x, y, 225, 225);
// Create a chart
Chart chart = new Chart(x + 10, y + 25, 200, 200, Font.Helvetica, 10, RgbColor.Black);
// Add a plot area to the chart
PlotArea plotArea = chart.PlotAreas.Add(50, 50, 300, 300);
// Create the Header title and add it to the chart
Title tTitle = new Title("Website Visitors (in millions)");
chart.HeaderTitles.Add(tTitle);
// Create a scalar datalabel
ScalarDataLabel da = new ScalarDataLabel(true, false, false);
// Create autogradient colors
AutoGradient autogradient1 = new AutoGradient(90f, CmykColor.Red, CmykColor.IndianRed);
AutoGradient autogradient2 = new AutoGradient(90f, CmykColor.Green, CmykColor.YellowGreen);
AutoGradient autogradient3 = new AutoGradient(90f, CmykColor.Blue, CmykColor.LightBlue);
// Create a pie series
PieSeries pieSeries = new PieSeries();
// Set scalar datalabel to the pie series
pieSeries.DataLabel = da;
// Add series to the plot area
plotArea.Series.Add(pieSeries);
//Add pie series elements to the pie series
pieSeries.Elements.Add(27, "Website A");
pieSeries.Elements.Add(19, "Website B");
pieSeries.Elements.Add(21, "Website C");
// Assign autogradient colors to series elements
pieSeries.Elements[0].Color = autogradient1;
pieSeries.Elements[1].Color = autogradient2;
pieSeries.Elements[2].Color = autogradient3;
chart.Legends[0].Visible = false;
elements.Add(chart);
}
public void AddPieChart(float x, float y, float width, float height, List<Tuple<double, string, string>> piedataseries)
{
if (piedataseries == null || piedataseries.Count == 0)
return;
y = y - 20;
var ploatwidth = 250;
var ploatheight = 250;
Chart chart = new Chart(x, y, width, height);
PlotArea plotArea = chart.PlotAreas.Add((width - ploatwidth) / 2 + 50, y, ploatwidth, ploatheight);
ScalarDataLabel da = new ScalarDataLabel(false, true, false);
da.FontSize = 7;
//
//
//
var legendwidth = 300;
var legendheight = 100;
chart.AutoLayout = false;
var legend = chart.Legends.Add(35 + (plotArea.Width - legendheight) / 2, y + ploatheight, legendwidth, legendheight);
legend.FontSize = 8;
legend.LabelSpacing = 3;
chart.Legends.Placement = LegendPlacement.BottomRight;
//
//
//
PieSeries pieSeries = new PieSeries();
pieSeries.DataLabel = da;
pieSeries.DataLabelPosition = ScalarDataLabelPosition.OutsideWithConnectors;
pieSeries.StartAngle = 90;
pieSeries.PercentageFormat = "0.### %";
plotArea.Series.Add(pieSeries);
//
//
//
Action<PieSeriesElement, string, string> paddincenter = (serie, serielabel, serievalue) =>
{
if (serie.LegendLabel == null)
return;
var escapewidth = 2.224;
var const_width = 250;
if (serie.LegendLabel.RequiredWidth < const_width)
{
var width_requiered = const_width - serie.LegendLabel.RequiredWidth;
var escape_requiered = width_requiered / escapewidth;
var padright = serielabel.PadRight((int)escape_requiered + serielabel.Length, ' ');
serie.LegendLabel.Text = string.Format("{0}{1} €", padright, serievalue);
}
};
piedataseries = piedataseries.OrderByDescending(x1 => x1.Item1).ToList();
foreach (var tuplepieserie in piedataseries)
{
var labelserie = tuplepieserie.Item2.Length > 40 ? tuplepieserie.Item2.Substring(0, 40) : tuplepieserie.Item2;
PieSeriesElement serieelt =
new PieSeriesElement(
(float)tuplepieserie.Item1, string.Format("{0}{1}",
labelserie, tuplepieserie.Item1.ToString("n", new System.Globalization.NumberFormatInfo { NumberGroupSeparator = " " })),
new WebColor(tuplepieserie.Item3));
pieSeries.Elements.Add(serieelt);
paddincenter(serieelt, labelserie, tuplepieserie.Item1.ToString("n", new System.Globalization.NumberFormatInfo { NumberGroupSeparator = " " }));
var _width = pieSeries.Elements[0].PlotArea.Width;
}
_currentPage.Elements.Add(chart);
}
