private void DrawSeparator(double i, double tolerance, CoreMargin currentMargin, Func <double, string> f, AxisOrientation source)
{
if (i < BotLimit)
{
return;
}
SeparatorElementCore asc;
var key = Math.Round(i / tolerance) * tolerance;
if (!Cache.TryGetValue(key, out asc))
{
asc = new SeparatorElementCore {
IsNew = true
};
Cache[key] = asc;
}
else
{
asc.IsNew = false;
}
View.RenderSeparator(asc, Chart);
asc.Key = key;
asc.Value = i;
asc.GarbageCollectorIndex = GarbageCollectorIndex;
var labelsMargin = asc.View.UpdateLabel(f(i), this, source);
currentMargin.Width = labelsMargin.TakenWidth > currentMargin.Width
? labelsMargin.TakenWidth
: currentMargin.Width;
currentMargin.Height = labelsMargin.TakenHeight > currentMargin.Height
? labelsMargin.TakenHeight
: currentMargin.Height;
currentMargin.Left = labelsMargin.Left > currentMargin.Left
? labelsMargin.Left
: currentMargin.Left;
currentMargin.Right = labelsMargin.Right > currentMargin.Right
? labelsMargin.Right
: currentMargin.Right;
currentMargin.Top = labelsMargin.Top > currentMargin.Top
? labelsMargin.Top
: currentMargin.Top;
currentMargin.Bottom = labelsMargin.Bottom > currentMargin.Bottom
? labelsMargin.Bottom
: currentMargin.Bottom;
if (LastAxisMax == null)
{
asc.State = SeparationState.InitialAdd;
return;
}
asc.State = SeparationState.Keep;
}
internal override CoreMargin PrepareChart(AxisOrientation source, ChartCore chart)
{
if (!(Math.Abs(TopLimit - BotLimit) > S * .01) || !ShowLabels)
{
return(new CoreMargin());
}
CalculateSeparator(chart, source);
var f = GetFormatter();
var currentMargin = new CoreMargin();
if (S < 1)
{
S = 1;
}
var tolerance = S / 10;
InitializeGarbageCollector();
var bl = Math.Ceiling(BotLimit / Magnitude) * Magnitude;
var @base = ((ILogarithmicAxisView)View).Base;
for (var i = bl; i <= TopLimit - (EvaluatesUnitWidth ? 1 : 0); i += S)
{
var minTolerance = tolerance / 10;
if (Math.Abs(i - bl) > tolerance)
{
var step = Math.Pow(@base, i - 1);
for (var j = Math.Pow(@base, i - 1) + step;
j < Math.Pow(@base, i);
j += step)
{
SeparatorElementCore minorAsc;
var scaledJ = Math.Log(j, @base);
var minorKey = Math.Round(scaledJ / minTolerance) * minTolerance;
if (!Cache.TryGetValue(minorKey, out minorAsc))
{
minorAsc = new SeparatorElementCore {
IsNew = true
};
Cache[minorKey] = minorAsc;
}
else
{
minorAsc.IsNew = false;
}
View.RenderSeparator(minorAsc, Chart);
minorAsc.Key = minorKey;
minorAsc.Value = scaledJ;
minorAsc.GarbageCollectorIndex = GarbageCollectorIndex;
minorAsc.View.UpdateLabel(string.Empty, this, source);
if (LastAxisMax == null)
{
minorAsc.State = SeparationState.InitialAdd;
continue;
}
minorAsc.State = SeparationState.Keep;
}
}
SeparatorElementCore asc;
var key = Math.Round(i / tolerance) * tolerance;
if (!Cache.TryGetValue(key, out asc))
{
asc = new SeparatorElementCore {
IsNew = true
};
Cache[key] = asc;
}
else
{
asc.IsNew = false;
}
View.RenderSeparator(asc, Chart);
asc.Key = key;
asc.Value = i;
asc.GarbageCollectorIndex = GarbageCollectorIndex;
var labelsMargin = asc.View.UpdateLabel(f(i), this, source);
currentMargin.Width = labelsMargin.TakenWidth > currentMargin.Width
? labelsMargin.TakenWidth
: currentMargin.Width;
currentMargin.Height = labelsMargin.TakenHeight > currentMargin.Height
? labelsMargin.TakenHeight
: currentMargin.Height;
currentMargin.Left = labelsMargin.Left > currentMargin.Left
? labelsMargin.Left
: currentMargin.Left;
currentMargin.Right = labelsMargin.Right > currentMargin.Right
? labelsMargin.Right
: currentMargin.Right;
currentMargin.Top = labelsMargin.Top > currentMargin.Top
? labelsMargin.Top
: currentMargin.Top;
currentMargin.Bottom = labelsMargin.Bottom > currentMargin.Bottom
? labelsMargin.Bottom
: currentMargin.Bottom;
if (LastAxisMax == null)
{
asc.State = SeparationState.InitialAdd;
continue;
}
asc.State = SeparationState.Keep;
}
return(currentMargin);
}
