void IGraphDrawing.DrawGraph(int graphId, List <int> samples, AdcSampleProfile profile)
{
var graph = new GraphPainter(visualSize).DrawGraph(
samples, profile, ChooseColor(graphId), graphId);
graphVisuals[graphId] = graph;
RebuildChildren();
}
public DrawingVisual DrawGraph(List <int> samples, AdcSampleProfile profile, Color color, int graphId)
{
var drawingVisual = new DrawingVisual();
DrawingContext dc = drawingVisual.RenderOpen();
var graphBrush = new SolidColorBrush(color);
var graphPen = new Pen(graphBrush, 2);
string text = graphId.ToString();
var typeface = new Typeface("Arial");
double emSize = (graphH / 20);
var ft = new FormattedText(text, CultureInfo.CurrentCulture, FlowDirection.LeftToRight, typeface, emSize, graphBrush);
dc.DrawText(ft, new Point(graphX + (ft.Width * graphId), graphY - ft.Height));
int numPoints = samples.Count();
if (numPoints > 1)
{
int profileH = (profile.MaxValue - profile.MinValue);
double pointX = graphX;
// number of line segments is number of points - 1
double pointStep = graphW / (numPoints - 1);
var lastPoint = new Point();
foreach (var sample in samples)
{
double pointH = ((double)(sample - profile.MinValue) / profileH) * graphH;
double pointY = graphY - pointH;
var point = new Point(pointX, pointY);
double pointRadius = graphPen.Thickness / 2;
dc.DrawEllipse(graphBrush, graphPen, point, pointRadius, pointRadius);
if (pointX > graphX)
{
dc.DrawLine(graphPen, lastPoint, point);
}
lastPoint = point;
pointX += pointStep;
}
}
dc.Close();
return(drawingVisual);
}
