public void MoveNode(int id, float newX, float newY)
{
if (newX < 0 || newX > Width || newY < 0 || newY > Height)
{
throw new ArgumentOutOfRangeException();
}
DrawableGraphNode curr = (DrawableGraphNode)CurrGraph.Nodes[id];
curr.Position = new PointF(newX, newY);
}
public void ChangeNodeColor(int idNode, Color color)
{
if (idNode < 0 || idNode >= CurrGraph.Nodes.Count)
{
throw new ArgumentOutOfRangeException();
}
DrawableGraphNode node = CurrGraph.Nodes[idNode] as DrawableGraphNode;
node.FillingColor = color;
}
public void Draw(Graphics field, RectangleF clipRect)
{
field.Clear(Color.White);
foreach (DrawableGraphNode node in CurrGraph.Nodes)
{
foreach (var edge in node.To)
{
DrawableGraphNode to = CurrGraph.Nodes[edge.Item1] as DrawableGraphNode;
field.DrawLine(Pens.Black, TranslateFromLocal(node.Position, clipRect),
TranslateFromLocal(to.Position, clipRect));
PointF fromDot = TranslateFromLocal(node.Position, clipRect);
PointF toDot = TranslateFromLocal(to.Position, clipRect);
PointF weightDot = new PointF((fromDot.X + toDot.X) / 2,
(fromDot.Y + toDot.Y) / 2);
field.DrawString(edge.Item2.ToString(),
new Font(new FontFamily(System.Drawing.Text.GenericFontFamilies.Monospace),
node.Radius / 2),
Brushes.SaddleBrown,
weightDot);
}
}
foreach (DrawableGraphNode node in CurrGraph.Nodes)
{
PointF dot = TranslateFromLocal(node.Position, clipRect);
dot = new PointF(dot.X - node.Radius, dot.Y - node.Radius);
RectangleF rect = new RectangleF(dot,
new SizeF(node.Radius * 2, node.Radius * 2));
field.DrawEllipse(Pens.Black, rect);
field.FillEllipse(new SolidBrush(node.FillingColor), rect);
field.DrawString(node.Id.ToString(),
new Font(new FontFamily(System.Drawing.Text.GenericFontFamilies.Monospace),
node.Radius / 2),
Brushes.Black,
dot.X + node.Radius / 2,
dot.Y + node.Radius / 2);
}
}
