Home > Sample Charts > DialChart > Two Warning Zones

Two Warning Zones

The Dial or Gauge chart is often used to present a single value (maybe a benchmark index of company performance) in the context of an expected or desired range. The value on its own may mean very little (maybe our production plant made 23% rejects last week) until it is set in the context of the expected range.

This chart uses ‘annular’ zones (the default) to show two significant ranges in different colors. This gives a very clear indication of the health (or otherwise) of some key indicator of company performance.

SharpPlot sp = new SharpPlot;
sp.SetMargins(24,24,12,12);

sp.Heading = "Ranged, with Two Annular Zones";
sp.SetAxisStyle(Color.Black,LineStyle.Solid,2);
sp.SetXLabelFont("Arial",12,FontStyle.Bold);

sp.SetPenWidths(2);
sp.SetBackground(Color.Silver,FillStyle.Solid);
sp.SetChartBackground(Color.White,FillStyle.Solid);
sp.SetXRange(200,800);
sp.SetXTickMarks(100,1);

xzones = new Zone[]{new Zone(200,350,Color.Green),new Zone(700,800,Color.Orange)};
sp.SetXZones(xzones);

sp.XCaption = "psi";
sp.SetXCaptionFont("times",18,FontStyle.Italic,Color.Maroon);

sp.DrawDialChart(345);

Worked Examples

Send comments on this topic
© Dyalog Ltd 2013