Hi there,
You can customize the way points are drawn in Measurement Studio Graph controls. Check out the Graph Example that comes with Measurement Studio (...\Graph\CustomStyles\...).
You can customize it this way...
1. Write your own CustomStyle deriving the PointStyle class.
2. Override the Draw() method.
3. Override the IsValueDependent property and return true.
Here is the sample code snippet showing the same,
// Use an instance of these style classes for scatterGraph.PlotStyle.
// The point color is dependent on the data.
public class MyCustomStyle1 : PointStyle
{
ScatterPlot scatterPlot;
public MyCustomStyle1(ScatterPlot myPlot)
{
scatterPlot = myPlot;
}
public override void Draw(object context, PointStyleDrawArgs args)
{
Graphics g = args.Graphics;
double x = 0;
double y = 0;
Rectangle rect = new Rectangle((int)args.Graphics.ClipBounds.X, (int)args.Graphics.ClipBounds.Y, (int)args.Graphics.ClipBounds.Width, (int)args.Graphics.ClipBounds.Height);
// You can get the data points x and y by inverse mapping.
scatterPlot.InverseMapDataPoint(rect, new PointF((float)args.X, (float)args.Y), out x, out y);
Color c = Color.White; // Replace the code here to map your data value to a color value.
g.FillRectangle(new SolidBrush(c), new Rectangle(0, 0, 100, 100));
}
public override bool IsValueDependent
{
get { return true; }
}
}
// Point color is not dependent on data
public class MyCustomStyle2 : PointStyle
{
private Random r = new Random();
public override void Draw(object context, PointStyleDrawArgs args)
{
Graphics g = args.Graphics;
Color c = Color.FromArgb(r.Next() % 255, r.Next() % 255, r.Next() % 255);
g.FillRectangle(new SolidBrush(c), new Rectangle(0, 0, 100, 100));
}
public override bool IsValueDependent
{
get { return true; }
}
}
Hope this helps.
