/**
* public double XValue(GraphPoint point)
* {
* if (this.XAxisDataType == AxisDataTypes.axNumeric)
* return (double)point.X;
* else
* return DoubleConvert.Date2Double((DateTime)(point.X));
* }
**/
private void DrawNodes(IGUIContext ctx, RectangleF bounds)
{
int OldNumberOfPoints = CurrentNumberOfPoints;
CurrentNumberOfPoints = 0;
if (Graph == null)
{
if (OldNumberOfPoints != 0)
{
if (PointCountChangedEvent != null)
{
PointCountChangedEvent();
}
}
return;
}
PointF p;
bool bInterpolated = false;
// int ListID;
Color C;
float offsetX = bounds.X;
float offsetY = bounds.Y;
if (Graph.Visible)
{
if (Graph.Points.Count > 1)
{
DrawGraphLine(ctx, Graph, bounds);
}
foreach (GraphPoint gp in Graph.Points)
{
p = Point2Client((double)gp.X, (double)gp.Y, bounds).Add(offsetX, offsetY);
if (!Bounds.IntersectsWith(new RectangleF(p.X, p.Y, 1, 1)))
{
continue;
}
bInterpolated = Graph.GraphType == GraphTypes.gtInterpolation;
C = Graph.GraphColor;
Pen pen = new Pen(Color.White);
SolidBrush brush = new SolidBrush(C);
SolidBrush whitebrush = new SolidBrush(Color.White);
try
{
if (bInterpolated)
{
float PointWidth = PointRadius * 2f;
ctx.DrawRectangle(pen, p.X - PointRadius, p.Y - PointRadius, PointWidth, PointWidth);
if (gp == PointCatched)
{
ctx.DrawRectangle(pen, p.X - PointRadius - 1, p.Y - PointRadius - 1, PointWidth + 2, PointWidth + 2);
}
}
else
{
float Radius = PointRadius / 2f;;
float width;
if (gp == PointCatched)
{
width = 4f.Scale(ScaleFactor);
}
else
{
width = 3f.Scale(ScaleFactor);
}
ctx.FillEllipse(brush, p.X, p.Y, Radius + width, Radius + width);
width = 1.5f.Scale(ScaleFactor);
ctx.FillEllipse(whitebrush, p.X, p.Y, Radius + width, Radius + width);
ctx.FillEllipse(brush, p.X, p.Y, Radius, Radius);
}
}
catch { }
pen.Dispose();
brush.Dispose();
CurrentNumberOfPoints++;
}
}
if (CurrentNumberOfPoints != OldNumberOfPoints)
{
if (PointCountChangedEvent != null)
{
PointCountChangedEvent();
}
}
}
public static void FillCircle(this IGUIContext ctx, Brush brush, float cx, float cy, float radius, float scale = 1)
{
ctx.FillEllipse(brush, cx, cy, radius, radius, scale);
}