public HitTestResultBehavior HitTestResult(HitTestResult hr)
{
DrawingVisual visual = hr.VisualHit as DrawingVisual;
if (visual != null && HoverElements.ContainsKey(visual))
{
if (Listener != null)
{
Listener.Highlight(HoverElements[visual]);
}
return(HitTestResultBehavior.Stop);
}
return(HitTestResultBehavior.Continue);
}
public void DrawContents()
{
if (this.children.Count > 1)
{
this.children.RemoveRange(1, children.Count - 1);
HoverElements.Clear();
}
var maxR = 300 / Dimension / 3.5;
//Get Max count for
var maxWeight = Map.Values
.Where(v => v != null)
.GroupBy(c => c.Count)
.Select(c => c.Key)
.Max();
foreach (var p in Map)
{
if (p.Value != null && p.Value.Count > 0)
{
var r = p.Value.Count * maxR / maxWeight;
var groups = p.Value.GroupBy(v => v.C).OrderBy(g => g.Key);
var arcPoint = new Point(hexagonCenters[p.Key].X + r, hexagonCenters[p.Key].Y);
double angle = 0;
foreach (var g in groups)
{
DrawingVisual visual = new DrawingVisual();
DrawingContext context = visual.RenderOpen();
Color color = GetColorByGroup(g.Key);
double currentAngle = 360 * g.Count() / p.Value.Count;
if (currentAngle != 360.0)
{
angle += currentAngle;
context.DrawGeometry(new SolidColorBrush(color),
new Pen(new SolidColorBrush(Colors.White), 1),
Geometry.Parse(string.Format(System.Globalization.CultureInfo.InvariantCulture,
"M {0},{1} L {2},{3} A {4},{5} {8} {9} {10} {6},{7} L {0},{1} Z",
hexagonCenters[p.Key].X,
hexagonCenters[p.Key].Y,
arcPoint.X,
arcPoint.Y,
r, r,
hexagonCenters[p.Key].X + r * Math.Cos(angle * Math.PI / 180f),
hexagonCenters[p.Key].Y + r * Math.Sin(angle * Math.PI / 180f),
0,
currentAngle > 180 ? 1 : 0,
1
)));
arcPoint.X = hexagonCenters[p.Key].X + r * Math.Cos(angle * Math.PI / 180f);
arcPoint.Y = hexagonCenters[p.Key].Y + r * Math.Sin(angle * Math.PI / 180f);
}
else
{
context.DrawEllipse(new SolidColorBrush(color),
new Pen(new SolidColorBrush(Colors.White), 1), hexagonCenters[p.Key], r, r);
}
context.Close();
children.Add(visual);
HoverElements[visual] = new List <ClassObject>();
HoverElements[visual].AddRange(g.AsEnumerable());
}
}
}
}
