public List <RectangleTemp> BuildMap(double width, double height, IEnumerable <double> data)
{
_tmpWidth = width;
_tmpHeight = height;
if (data.Count() == 1)
{
return(new List <RectangleTemp> {
new RectangleTemp {
Width = width, Height = height
}
});
}
var dataTotal = data.Sum();
var valueScale = ((width * height) / dataTotal) / 100;
_data = data.OrderByDescending(x => x).Select(x => new RectangleTemp {
Value = x * valueScale
}).ToList();
var info = new TreeMapInfo();
info.DrawVertically = DrawVertically(width, height);
PlaceRectangle(info, width, height);
return(_data);
}
private void PlaceRectangle(TreeMapInfo info, double width, double height)
{
while (info.End != _data.Count())
{
info.LastAspectRatio = FindAspectRatio(info.Start, info.End, info.DrawVertically);
if ((info.LastAspectRatio > info.CurrentAspectRatio) || (info.LastAspectRatio < 1))
{
double currX = 0;
double currY = 0;
// Lock the previous items in place
for (int n = info.Start; n < info.End; n++)
{
_data[n].X = info.OffsetX + currX;
_data[n].Y = info.OffsetY + currY;
if (info.DrawVertically)
{
currY += _data[n].Height;
}
else
{
currX += _data[n].Width;
}
}
if (info.DrawVertically)
{
info.OffsetX += _data[info.Start].Width;
}
else
{
info.OffsetY += _data[info.Start].Height;
}
_tmpWidth = width - info.OffsetX;
_tmpHeight = height - info.OffsetY;
info.DrawVertically = DrawVertically(_tmpWidth, _tmpHeight);
info.Start = info.End;
info.End = info.Start;
info.CurrentAspectRatio = 9999999;
continue;
}
else
{
// Store newly calculate sizes
for (int n = info.Start; n <= info.End; n++)
{
_data[n].Width = _data[n].TempWidth;
_data[n].Height = _data[n].TempHeight;
}
info.CurrentAspectRatio = info.LastAspectRatio;
// try to draw another item
info.End++;
}
}
// Set each item in the positions in the remaining area
double currX1 = 0;
double currY1 = 0;
for (int n = info.Start; n < info.End; n++)
{
_data[n].X = info.OffsetX + currX1;
_data[n].Y = info.OffsetY + currY1;
if (info.DrawVertically)
{
currY1 += _data[n].Height;
}
else
{
currX1 += _data[n].Width;
}
}
}
