private void AddPoint(Polyline line, Point point)
{
line.Points.Add(point);
//offset line if too long
double offset = MaxWidth / 10;
if (line.Points.Last().X > MaxWidth)
{
line.BeginInit();
//for (int i = 0; i < offset; i++)
//line.Points.RemoveAt(0);
List<Point> newPoints = line.Points.Select(cur => new Point(cur.X - offset, cur.Y)).ToList();
line.Points.Clear();
foreach (var p in newPoints)
line.Points.Add(p);
line.EndInit();
}
}
private void UpdateNumberBalances(Polyline polyline, int newPointY)
{
Point curPoint = new Point(polyline.Points.Count, newPointY);
polyline.Points.Add(curPoint);
//offset line if too long
var maxItemCount = MainWindow.NumberBalancesCanvasWidth;
double offset = maxItemCount / 10;
if (polyline.Points.Count >= maxItemCount)
{
polyline.BeginInit();
for (int i = 0; i < offset; i++)
polyline.Points.RemoveAt(0);
List<Point> newPoints = polyline.Points.Select(cur => new Point(cur.X - offset, cur.Y)).ToList();
polyline.Points.Clear();
foreach (var point in newPoints)
polyline.Points.Add(point);
polyline.EndInit();
}
}
