FarPoint.Web.Chart.PieSeries series = new FarPoint.Web.Chart.PieSeries();
series.SeriesName = "Series 0";
series.Values.Add(1.0);
series.Values.Add(2.0);
series.Values.Add(4.0);
series.Values.Add(8.0);
series.LabelContainsValue = true;
series.LabelVisible = true;
FarPoint.Web.Chart.PiePlotArea plotArea =new FarPoint.Web.Chart.PiePlotArea();
plotArea.Location = new PointF(0.2F, 0.2F);
plotArea.Size = new SizeF(0.6F, 0.6F);
plotArea.Series.Add(series);
FarPoint.Web.Chart.LabelArea label = new FarPoint.Web.Chart.LabelArea();
label.Text = "Pie Chart";
label.Location = new PointF(0.5F, 0.02F);
label.AlignmentX = 0.5F;
label.AlignmentY = 0.0F;
FarPoint.Web.Chart.LegendArea legend = new FarPoint.Web.Chart.LegendArea();
legend.Location = new PointF(0.98F, 0.5F);
legend.AlignmentX = 1.0F;
legend.AlignmentY = 0.5F;
FarPoint.Web.Chart.ChartModel model = new FarPoint.Web.Chart.ChartModel();
model.LabelAreas.Add(label);
model.LegendAreas.Add(legend);
model.PlotAreas.Add(plotArea);
FarPoint.Web.Spread.Chart.SpreadChart chart = new FarPoint.Web.Spread.Chart.SpreadChart();
chart.Model = model;
FpSpread1.Sheets[0].Charts.Add(chart);