protected void DrawNodes(Graphics g, Pen p)
{
PointF[] renderPoints = new PointF[4];
Vector2D v;
foreach (KeyValuePair <Node, List <NodeLink> > kvp in network.nodeDict)
{
ShapeNode n = kvp.Key as ShapeNode;
PointF centre = n.GetCentre();
bool bBezierDrawn = false;
for (int edgeIndex1 = 0; edgeIndex1 < n.points.Count; edgeIndex1++)
{
NodeLink link1 = n.LinkList[edgeIndex1];
if (link1 != null && link1.visited == true)
{
renderPoints[0] = n.GetEdgeCentre(edgeIndex1);
v = new Vector2D(renderPoints[0], centre);
v.Scale((float)curveTension.Value);
renderPoints[1] = v.b;
renderPoints[0].X *= (int)nodeSize.Value;
renderPoints[0].Y *= (int)nodeSize.Value;
renderPoints[1].X *= (int)nodeSize.Value;
renderPoints[1].Y *= (int)nodeSize.Value;
DrawCircle(g, renderPoints[0], p.Width, p.Color);
for (int edgeIndex2 = (edgeIndex1 + 1); edgeIndex2 < n.points.Count; edgeIndex2++)
{
NodeLink link2 = n.LinkList[edgeIndex2];
if (link2 != null && link2 != link1 && link2.visited == true)
{
renderPoints[3] = n.GetEdgeCentre(edgeIndex2);
v = new Vector2D(renderPoints[3], centre);
v.Scale((float)curveTension.Value);
renderPoints[3].X *= (int)nodeSize.Value;
renderPoints[3].Y *= (int)nodeSize.Value;
renderPoints[2] = v.b;
renderPoints[2].X *= (int)nodeSize.Value;
renderPoints[2].Y *= (int)nodeSize.Value;
g.DrawBeziers(p, renderPoints);
bBezierDrawn = true;
}
}
if (bBezierDrawn == false)
{
// A dead end
renderPoints[1] = centre;
renderPoints[1].X *= (int)nodeSize.Value;
renderPoints[1].Y *= (int)nodeSize.Value;
g.DrawLine(p, renderPoints[0], renderPoints[1]);
DrawCircle(g, renderPoints[1], p.Width, p.Color);
}
}
}
}
}