public static void contour(double step)
{
PyDraw.clear();
//PyDraw.fill(128, 255, 128);
//PyDraw.stroke(96, 255, 96);
//PyDraw.thickness(1);
//PyDraw.alpha(48);
var gridCells = ValueBuffer.GetGrid();
var values = Functional.Seq.range(0, gridCells.Max(x => x.Value), step).ToArray();
var cityLoops = new List <List <Geometry.Point2D> >();
foreach (var value in values)
{
var binarizedPixels = ValueBuffer.GetBinarizedPixels(gridCells.Cast <GridCell>().ToList(), x => x.Value >= value);
var pb = new Geometry.PixelBound(binarizedPixels);
var loops = pb.Trace();
foreach (var loop in loops)
{
var loopPoints = loop.Select(x => (ValueBuffer.GetGridCell(gridCells, x.X, x.Y) as GridCell).Position).ToList();
loopPoints = Geometry.PixelBound.Align(loopPoints, 5);
//PyDraw.cityspline(loopPoints.ToArray(), true);
//loopPoints.ForEach(p => PyDraw.cityellipse(p.x, p.y, 1, 1));
cityLoops.Add(loopPoints);
}
}
ViewerTool tool = new ViewerTool
{
PaintAction = () =>
{
cityLoops.ForEach(loop =>
{
var pts = loop.Select(p => display.CanvasCoordinateF(p)).ToList();
pts.ForEach(p => display.g.FillEllipse(new SolidBrush(Color.Black), p.X, p.Y, 3, 3));
});
}
};
viewer.SetTool(tool);
}
public static void voronoi(int level = 5)
{
PyDraw.clear();
PyDraw.fill(128, 128, 128);
PyDraw.thickness(3);
PyDraw.alpha(128);
var coverRangeCells = ValueBuffer.GetCoverRangeGrid();
var values = coverRangeCells.Select(x => x.Value).Distinct().ToArray();
foreach (var value in values)
{
var binarizedPixels = ValueBuffer.GetBinarizedPixels(coverRangeCells.Cast <GridCell>().ToList(), x => x.Value == value);
var pb = new Geometry.PixelBound(binarizedPixels);
var loop = pb.Trace()[0];
var loopPoints = loop.Select(x => (ValueBuffer.GetGridCell(coverRangeCells, x.X, x.Y) as GridCell).Position).ToList();
loopPoints = Geometry.PixelBound.Align(loopPoints, level);
PyDraw.cityspline(loopPoints.ToArray(), true);
}
}
public static void pixelboundtest(int i, int j = 6)
{
var values = ValueBuffer.Units.Select(x => x.Value).Distinct().ToArray();
var cells = ValueBuffer.Units.Where(x => x.Value == values[i]).Select(x =>
{
var cell = x as GridCell;
return(new Point(cell.Col, cell.Row));
}).ToList();
Geometry.PixelBound pb = new Geometry.PixelBound(cells);
var loop = pb.Trace()[0];
var loopPoints = loop.Select(x => (ValueBuffer.GetGridCell(x.X, x.Y) as GridCell).Position).ToList();
var spline = new Geometry.BSpline2D(loopPoints.Select(x => new Geometry.Point2D(x.x, x.y)).ToList());
var splinePoints = Enumerable.Range(0, 5 * (loopPoints.Count - 1) + 1).Select(x => spline.SolveAt(x / 5.0)).ToArray();
ViewerTool tool = new ViewerTool
{
PaintAction = () =>
{
display.g.DrawPolygon(new Pen(Brushes.Black, 1), splinePoints.Select(x => display.CanvasCoordinateF(x)).ToArray());
}
};
viewer.SetTool(tool);
}