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Shading and Outlining

The Venn diagram shows a diagrammatic view of Set membership data, using the correct proportions for the simply case with 2 populations (and 1 overlap) and a simple diagram with intersecting circles for the 3-area case.

When you choose to fill the circles, SharpPlot picks a suitable opacity setting so that the colours combine effectively. In this example the outline of each circle is redrawn over the filled areas.

SharpPlot sp = new SharpPlot;

sp.SetMargins(12,48,0,0);
sp.VennDiagramStyle = VennDiagramStyles.Filled|VennDiagramStyles.RedrawOutline|
         VennDiagramStyles.ValueTags;
sp.SetValueFont("arial",18,FontStyle.Bold,Color.White);

sp.SetColors(new Color[]{Color.Green,Color.Maroon});
sp.SetXLabels(new string[]{"Females","Maths Students","Female Maths Students"});
sp.SetXLabelFont("times",12,FontStyle.Bold,Color.Maroon);
sp.XLabelFormat = "XXXXXX;";

sp.DrawVennDiagram(data);

Worked Examples

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