void CreateChart()
{
pies.Clear();
// define the figure origin and size
var figureOrigin = new D2DPoint(300, 300);
var figureSize = new D2DSize(300, 300);
var records = new float[] { .6f, .3f, .1f };
float currentAngle = 0;
// create pie geometries from records
foreach (var record in records)
{
var angleSpan = record * 360;
var path = Device.CreatePieGeometry(figureOrigin, figureSize, currentAngle, currentAngle + angleSpan);
pies.Add(new PieInfo {
path = path, color = D2DColor.Randomly()
});
currentAngle += angleSpan;
}
Invalidate();
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
const int NODE_COUNT = 1000;
for (int i = 0; i < NODE_COUNT; i++)
{
var node = new Node()
{
text = "Node" + i,
rect = new D2DRect(rand.Next(ClientRectangle.Width), rand.Next(ClientRectangle.Height), 100, 20),
color = D2DColor.Randomly(),
fontSize = rand.Next(12, 24),
speed = (float)(rand.NextDouble() * 2.0),
};
nodes.Add(node);
}
}