/// <summary>
/// Create an OutlineShape.
/// </summary>
/// <param name="r"></param>
/// <param name="xSize">width of the created shape</param>
/// <param name="ySize">height of the created shape</param>
/// <param name="centerX">X coordinate, relative to total width; 0.0 = top, 1.0 = bottom</param>
/// <param name="centerY">Y coordinate, relative to total height; 0.0 = left, 1.0 = right</param>
/// <param name="shapeSize">size, relative to distance of center from the border; 1.0 will touch the border</param>
private CirclesOutlineShape(Random r, int xSize, int ySize, double centerX, double centerY, double shapeSize)
: base(xSize, ySize, centerX, centerY, shapeSize, true)
{
int n = r.Next(3, 7);
circles = new CircleOutlineShape[n];
double xccMin = -0.33 * this.sz, xccMax = xSize + 0.33 * this.sz;
double yccMin = -0.33 * this.sz, yccMax = ySize + 0.33 * this.sz;
double szcRange = 0.5;
for (int i = 0; i < n; i++)
{
// Choose the circle parameters: center and radius.
double xcc = xccMin + r.NextDouble() * (xccMax - xccMin);
double ycc = yccMin + r.NextDouble() * (yccMax - yccMin);
double szc = this.sz * ((1.0 - szcRange) + (2.0 * szcRange));
// If the center is too far outside of the border, increase the radius.
double borderDist = Math.Min(Math.Min(xcc, xSize - xcc), Math.Min(ycc, ySize - ycc));
if (borderDist + szc < 0.5 * szc)
{
szc = this.sz * (1.0 + 1.0 * szcRange);
}
circles[i] = new CircleOutlineShape(xSize, ySize, xcc, ycc, szc, false);
}
}
/// <summary>
/// Create an outline shape.
/// </summary>
/// <param name="r">a source of random numbers</param>
/// <param name="xSize">width of the created shape</param>
/// <param name="ySize">height of the created shape</param>
/// <param name="centerX">X coordinate, relative to total width; 0.0 = top, 1.0 = bottom</param>
/// <param name="centerY">Y coordinate, relative to total height; 0.0 = left, 1.0 = right</param>
/// <param name="shapeSize">size, relative to distance of center from the border; 1.0 will touch the border </param>
/// <returns></returns>
public static OutlineShape Circle(Random r, int xSize, int ySize, double centerX, double centerY, double shapeSize)
{
return(CircleOutlineShape.Create(r, xSize, ySize, centerX, centerY, shapeSize));
}