private void RebuildUI()
{
if (DataSource == null)
{
//todo: clear
return;
}
panel.Children.Clear();
int width = DataSource.Width;
int height = DataSource.Height;
bounds = DataSource.Grid.GetGridBounds();
fieldWrapper = new UniformFieldWrapper(DataSource.Data, width, height);
List<Point[]> tracks = new List<Point[]>(pointsNum);
for (int i = 0; i < pointsNum; i++)
{
var track = new List<Point>();
var start = rnd.NextPoint(bounds.XMin, bounds.XMax, bounds.YMin, bounds.YMax);
track.Add(start);
int maxLength = Math.Max(width, height);
var position = start;
double length = 0;
do
{
var K1 = fieldWrapper.GetVector(position);
K1.Normalize();
//var shift = K1;
var K2 = fieldWrapper.GetVector(position + (K1 / 2).DecreaseLength(width, height));
K2.Normalize();
var K3 = fieldWrapper.GetVector(position + (K2 / 2).DecreaseLength(width, height));
K3.Normalize();
var K4 = fieldWrapper.GetVector(position + K3.DecreaseLength(width, height));
K4.Normalize();
var shift = ((K1 + 2 * K2 + 2 * K3 + K4) / 6);
//shift.Normalize();
if (shift.X.IsNaN() || shift.Y.IsNaN())
break;
var next = position + shift;
track.Add(next);
if (!OccupyCells(position, next, bounds))
break;
position = next;
length += shift.Length;
} while (length < maxLength);
Polyline line = new Polyline
{
Stroke = Brushes.Orange,
StrokeThickness = 1,
Stretch = Stretch.Fill,
Points = new PointCollection(track),
Effect = new DropShadowEffect { Color = Colors.Black, Direction = 245, BlurRadius = 3 }
};
ViewportPanel.SetViewportBounds(line, track.GetBounds());
panel.Children.Add(line);
}
}
private void RebuildUI()
{
if (DataSource == null)
{
//todo: clear
return;
}
panel.Children.Clear();
int width = DataSource.Width;
int height = DataSource.Height;
bounds = DataSource.Grid.GetGridBounds();
fieldWrapper = new UniformFieldWrapper(DataSource.Data, width, height);
List <Point[]> tracks = new List <Point[]>(pointsNum);
for (int i = 0; i < pointsNum; i++)
{
var track = new List <Point>();
var start = rnd.NextPoint(bounds.XMin, bounds.XMax, bounds.YMin, bounds.YMax);
track.Add(start);
int maxLength = Math.Max(width, height);
var position = start;
double length = 0;
do
{
var K1 = fieldWrapper.GetVector(position);
K1.Normalize();
//var shift = K1;
var K2 = fieldWrapper.GetVector(position + (K1 / 2).DecreaseLength(width, height));
K2.Normalize();
var K3 = fieldWrapper.GetVector(position + (K2 / 2).DecreaseLength(width, height));
K3.Normalize();
var K4 = fieldWrapper.GetVector(position + K3.DecreaseLength(width, height));
K4.Normalize();
var shift = ((K1 + 2 * K2 + 2 * K3 + K4) / 6);
//shift.Normalize();
if (shift.X.IsNaN() || shift.Y.IsNaN())
{
break;
}
var next = position + shift;
track.Add(next);
if (!OccupyCells(position, next, bounds))
{
break;
}
position = next;
length += shift.Length;
} while (length < maxLength);
Polyline line = new Polyline
{
Stroke = Brushes.Orange,
StrokeThickness = 1,
Stretch = Stretch.Fill,
Points = new PointCollection(track),
Effect = new DropShadowEffect {
Color = Colors.Black, Direction = 245, BlurRadius = 3
}
};
ViewportPanel.SetViewportBounds(line, track.GetBounds());
panel.Children.Add(line);
}
}
