public void ClearConnections(WChain wc, Polyline shell)
{
canvas.Children.Remove(shell);
foreach (Polyline pl in wc.Dump)
{
canvas.Children.Remove(pl);
}
}
private void DeletePointBtn_Click(object sender, RoutedEventArgs e)
{
WChain wc = WChains[ChainBox.SelectedIndex];
DM.ClearPoint(wc.List[PointBox.SelectedIndex]);
wc.List.RemoveAt(PointBox.SelectedIndex);
DM.ClearConnections(wc);
DM.DrawConnections(wc);
UpdatePointList();
}
public void DrawConnections(WChain wc)
{
wc.Shell.Points.Clear();
foreach (WPoint wp in wc.List)
{
wc.Shell.Points.Add(wp.ToPoint());
}
wc.Shell.Stroke = Brushes.Black;
if (!canvas.Children.Contains(wc.Shell))
{
canvas.Children.Add(wc.Shell);
}
}
public void DrawAdditionalPoint(WChain wc, WPoint wp)
{
Polyline pl = new Polyline();
pl.Points.Add(wc.List.Last().ToPoint());
pl.Points.Add(wc.List[wc.List.Count - 2].ToPoint());
wc.Dump.Add(pl); //не очень изящное решение, still it works
pl.Stroke = Brushes.Black;
if (!canvas.Children.Contains(pl))
{
canvas.Children.Add(pl);
}
}
public void DrawCubicBezier(WChain wc)
{
int SEGMENT_COUNT = 30;
wc.CBShell.Points.Clear();
wc.CBShell.Points.Add(wc.List[0].ToPoint());
for (int i = 0; i < wc.List.Count; i += 3)
{
if ((wc.List.Count - i) < 4)
{
//заглушка на остатки точек, не вошедших в путь Безье
Polyline pl = new Polyline();
for (int k = i; k < wc.List.Count; k++)
{
pl.Points.Add(wc.List[k].ToPoint());
}
wc.Dump.Add(pl);
pl.Stroke = Brushes.Black;
if (!canvas.Children.Contains(pl))
{
canvas.Children.Add(pl);
}
break;
}
for (int j = 1; j <= SEGMENT_COUNT; ++j)
{
float t = j / (float)SEGMENT_COUNT;
wc.CBShell.Points.Add(CalculateCubicBezierPoint(t, wc.List[i],
wc.List[i + 1], wc.List[i + 2], wc.List[i + 3]).ToPoint());
}
}
wc.CBShell.Stroke = Brushes.Black;
if (!canvas.Children.Contains(wc.CBShell))
{
canvas.Children.Add(wc.CBShell);
}
}
public void ClearConnections(WChain wc)
{
ClearConnections(wc, wc.Shell);
ClearConnections(wc, wc.CBShell);
ClearConnections(wc, wc.QBShell);
}