private static void Compute()
{
var mergeSort = new MergeSort();
var mergeSortBu = new MergeSortBu();
var mergeResult = new int[10];
var mergeResultBu = new int[10];
var upperBound = new int[10];
// 进行计算
var dataSize = 1;
for (var i = 0; i < 10; i++)
{
var dataMerge = SortCompare.GetRandomArrayInt(dataSize);
var dataMergeBu = new int[dataSize];
dataMerge.CopyTo(dataMergeBu, 0);
mergeSort.ClearArrayVisitCount();
mergeSortBu.ClearArrayVisitCount();
mergeSort.Sort(dataMerge);
mergeSortBu.Sort(dataMergeBu);
mergeResult[i] = mergeSort.GetArrayVisitCount();
mergeResultBu[i] = mergeSortBu.GetArrayVisitCount();
upperBound[i] = (int)(6 * dataSize * Math.Log(dataSize, 2));
dataSize *= 2;
}
// 绘图
var plot = new Form2();
plot.Show();
var graphics = plot.CreateGraphics();
// 获得绘图区矩形。
RectangleF rect = plot.ClientRectangle;
var unitX = rect.Width / 10;
var unitY = rect.Width / 10;
// 添加 10% 边距作为文字区域。
var center = new RectangleF
(rect.X + unitX, rect.Y + unitY,
rect.Width - 2 * unitX, rect.Height - 2 * unitY);
// 绘制坐标系。
graphics.DrawLine(Pens.Black, center.Left, center.Top, center.Left, center.Bottom);
graphics.DrawLine(Pens.Black, center.Left, center.Bottom, center.Right, center.Bottom);
graphics.DrawString("28000", plot.Font, Brushes.Black, rect.Location);
graphics.DrawString("1024", plot.Font, Brushes.Black, center.Right, center.Bottom);
graphics.DrawString("0", plot.Font, Brushes.Black, rect.Left, center.Bottom);
// 初始化点。
var grayPoints = new PointF[10]; // 上限
var redPoints = new PointF[10]; // 自顶向下
var bluePoints = new PointF[10]; // 自底向上
unitX = center.Width / 11.0f;
unitY = center.Height / 28000.0f;
for (var i = 0; i < 10; i++)
{
grayPoints[i] = new PointF(center.Left + unitX * (i + 1), center.Bottom - (upperBound[i] * unitY) - 10);
redPoints[i] = new PointF(center.Left + unitX * (i + 1), center.Bottom - (mergeResult[i] * unitY) - 10);
bluePoints[i] = new PointF(center.Left + unitX * (i + 1), center.Bottom - (mergeResultBu[i] * unitY) - 10);
}
// 绘制点。
for (var i = 0; i < 10; i++)
{
graphics.FillEllipse(Brushes.Gray, new RectangleF(grayPoints[i], new SizeF(10, 10)));
graphics.FillEllipse(Brushes.Red, new RectangleF(redPoints[i], new SizeF(10, 10)));
graphics.FillEllipse(Brushes.Blue, new RectangleF(bluePoints[i], new Size(10, 10)));
}
graphics.Dispose();
}
