public override Rect Apply(Rect oldDataRect, Rect newDataRect, Viewport2D viewport)
{
double ratio = newDataRect.Width / newDataRect.Height;
double coeff = Math.Sqrt(ratio);
double newWidth = newDataRect.Width / coeff;
double newHeight = newDataRect.Height * coeff;
Point center = newDataRect.GetCenter();
Rect res = RectExtensions.FromCenterSize(center, newWidth, newHeight);
return res;
}
public override Rect Apply(Rect oldDataRect, Rect newDataRect, Viewport2D viewport)
{
Rect output = viewport.Output;
if (output.Width == 0 || output.Height == 0)
return newDataRect;
double screenRatio = output.Width / output.Height;
double viewportRatio = newDataRect.Width / newDataRect.Height;
double ratio = screenRatio / viewportRatio;
double width = proportionRatio * newDataRect.Width * ratio;
double height = newDataRect.Height;
if (width < newDataRect.Width)
{
height = newDataRect.Height / proportionRatio / ratio;
width = newDataRect.Width;
}
Point center = newDataRect.GetCenter();
Rect res = RectExtensions.FromCenterSize(center, width, height);
return res;
}
public static Rect RectZoom(Rect rect, double ratio)
{
return RectZoom(rect, rect.GetCenter(), ratio);
}
public static Rect RectZoom(Rect rect, double horizontalRatio, double verticalRatio)
{
return RectZoom(rect, rect.GetCenter(), horizontalRatio, verticalRatio);
}
private static IEnumerable<Point> Quadivide(Rect area)
{
if (area.Width > 0 && area.Height > 0)
{
var center = area.GetCenter();
var x = Math.Floor(center.X);
var y = Math.Floor(center.Y);
yield return new Point(x, y);
var quad1 = new Rect(area.TopLeft, new Point(x, y + 1));
var quad2 = new Rect(area.TopRight, new Point(x, y));
var quad3 = new Rect(area.BottomLeft, new Point(x + 1, y + 1));
var quad4 = new Rect(area.BottomRight, new Point(x + 1, y));
var quads = new Queue<IEnumerator<Point>>();
quads.Enqueue(Quadivide(quad1).GetEnumerator());
quads.Enqueue(Quadivide(quad2).GetEnumerator());
quads.Enqueue(Quadivide(quad3).GetEnumerator());
quads.Enqueue(Quadivide(quad4).GetEnumerator());
while (quads.Count > 0)
{
var quad = quads.Dequeue();
if (quad.MoveNext())
{
yield return quad.Current;
quads.Enqueue(quad);
}
}
}
}
protected Rect EnlargeRect(Rect rect)
{
Size newSize = rect.Size;
newSize.Width += 1;
newSize.Height += 1;
Rect result = RectExtensions.FromCenterSize(rect.GetCenter(), newSize);
return result;
//double coeff = 1 + 1.0 / tileWidth;
//return EnlargeRect(rect, coeff);
}
