private IEnumerable <AxisTickModel> GenerateTicks()
{
if (this.tickPlacementCache == ScaleElementPlacement.None)
{
yield break;
}
decimal min = Math.Round((decimal)this.minimumCache, 4);
decimal max = Math.Round((decimal)this.maximumCache, 4);
decimal step = (decimal)this.tickFrequencyCache;
decimal delta = max - min;
if (delta > 0 && step > 0)
{
for (int i = 0;; i++)
{
decimal value = min + i * Math.Round(step, 4);
if (max < value)
{
break;
}
AxisTickModel tick = new AxisTickModel();
tick.normalizedValue = (value - min) / delta;
yield return(tick);
}
}
}
private FrameworkElement GetTickVisual(AxisTickModel tick, int index)
{
FrameworkElement visual;
if (index >= this.tickVisuals.Count)
{
visual = this.CreateTickVisual(tick, this.owner.TickTemplate);
}
else
{
visual = this.tickVisuals[index];
visual.Visibility = Visibility.Visible;
}
return(visual);
}
private FrameworkElement CreateTickVisual(AxisTickModel tick, DataTemplate template)
{
FrameworkElement visual;
if (template == null)
{
visual = this.CreateTickRectangle();
}
else
{
visual = CreateContentPresenter(tick, template);
}
this.Children.Add(visual);
this.tickVisuals.Add(visual);
return(visual);
}
private RadSize MeasureTick(AxisTickModel tick)
{
FrameworkElement visual = this.GetTickVisual(tick, tick.CollectionIndex);
visual.Measure(InfinitySize);
if (visual is ContentPresenter)
{
return(new RadSize(visual.DesiredSize.Width, visual.DesiredSize.Height));
}
if (this.model.Orientation == Orientation.Horizontal)
{
return(new RadSize(this.owner.TickThickness, this.owner.TickLength));
}
return(new RadSize(this.owner.TickLength, this.owner.TickThickness));
}