private static void DrawLabels(Graphics g, HeatmapData data, int cellWidth, int cellHeight)
{
var font = new Font(FontFamily.GenericMonospace, 10);
for (var x = 0; x < data.XLabels.Length; x++)
{
var text = data.XLabels[x];
var labelRect = new RectangleF(cellWidth * (1 + x), data.YLabels.Length * cellHeight, cellWidth,
cellHeight);
var format = new StringFormat();
format.LineAlignment = StringAlignment.Near;
format.Alignment = StringAlignment.Center;
g.DrawString(text, font, new SolidBrush(Color.Black), labelRect, format);
}
for (var y = 0; y < data.YLabels.Length; y++)
{
var text = data.YLabels[y];
var labelRect = new RectangleF(0, y * cellHeight, cellWidth, cellHeight);
var format = new StringFormat();
format.LineAlignment = StringAlignment.Center;
format.Alignment = StringAlignment.Far;
g.DrawString(text, font, new SolidBrush(Color.Black), labelRect, format);
}
}
public bool Equals(HeatmapData other)
{
return(Enumerable.Range(0, 2)
.All(dimension =>
Heat.GetLength(dimension) == other.Heat.GetLength(dimension)) &&
Heat
.Cast <double>()
.SequenceEqual(other.Heat
.Cast <double>()));
}
public static void ShowHeatmap(HeatmapData stats)
{
var form = new Form
{
Text = stats.Title,
Size = new Size(800, 600)
};
form.Paint += (s, e) => DrawHeatmap(form.ClientRectangle, e.Graphics, stats);
form.ShowDialog();
}
private static void DrawHeatmap(Rectangle clientRect, Graphics g, HeatmapData data)
{
var values = data.Heat.Cast <double>().ToList();
var avgHeat = values.Average();
var sigma = Math.Sqrt(values.Average(x => (x - avgHeat) * (x - avgHeat)));
var cellWidth = clientRect.Width / (data.XLabels.Length + 1);
var cellHeight = clientRect.Height / (data.YLabels.Length + 1);
for (var x = 0; x < data.XLabels.Length; x++)
{
for (var y = 0; y < data.YLabels.Length; y++)
{
var color = GetColor(data.Heat[x, y], avgHeat, sigma);
var cellRect = new Rectangle(
clientRect.Left + cellWidth * (1 + x),
clientRect.Top + cellHeight * y,
cellWidth,
cellHeight
);
g.FillRectangle(new SolidBrush(color), cellRect);
}
}
DrawLabels(g, data, cellWidth, cellHeight);
}
