/// <summary>
/// Searches for a vertex based on a screen position
/// </summary>
/// <param name="position">The screen position</param>
/// <returns>The closest vertex or null if no vertex is within a certain range</returns>
string GetVertexFromPosition(System.Drawing.Point position)
{
Vector3 screencoord = new Vector3(position.X, position.Y, 0);
Vector3 worldcoord = ScreenToWorld(screencoord);
string selected = null;
double dist = double.MaxValue;
Vector3 clickPos = new Vector3(worldcoord.X, worldcoord.Y, 0f);
foreach (string v in _network.GetVertexArray())
{
Vector3 p = Layout.GetPositionOfNode(v);
p.Z = 0f;
if ((p - clickPos).Length < dist && (p - clickPos).Length < MarkerSize)
{
dist = (p - clickPos).Length;
selected = v;
}
}
if (selected != null)
{
Console.WriteLine("Selected node: " + selected);
}
else
{
Console.WriteLine("No node. Clicked at " + position.X + "," + position.Y);
}
return(selected);
}
private static void Draw(XGraphics g, IRenderableNet n, LayoutProvider layout, NetworkColorizer colorizer)
{
lock (n)
{
if (g == null)
return;
g.SmoothingMode = PdfSharp.Drawing.XSmoothingMode.HighQuality;
g.Clear(Color.White);
foreach (var e in n.GetEdgeArray())
if (string.Compare(e.Item1, e.Item2) >= 0)
DrawEdge(g, e, layout, colorizer);
foreach (string v in n.GetVertexArray())
DrawVertex(g, v, layout, colorizer);
}
}
private static void Draw(XGraphics g, IRenderableNet n, LayoutProvider layout, NetworkColorizer colorizer)
{
lock (n)
{
if (g == null)
{
return;
}
g.SmoothingMode = PdfSharp.Drawing.XSmoothingMode.HighQuality;
g.Clear(Color.White);
foreach (var e in n.GetEdgeArray())
{
if (string.Compare(e.Item1, e.Item2) >= 0)
{
DrawEdge(g, e, layout, colorizer);
}
}
foreach (string v in n.GetVertexArray())
{
DrawVertex(g, v, layout, colorizer);
}
}
}