private void CreateLabels()
{
double max = Maximum;
double min = Minimum;
for (double v = min; v <= max; v += MajorTickStep)
{
Tick tick = new Tick() { Value = v, TickType = TickType.Label };
labels.Add(tick);
//also set the content and template for the label
tick.ContentTemplate = GetTickTemplate(TickType.Label, v);
tick.Content = v;
Children.Insert(0, tick);
}
}
private void CreateTicks()
{
double max = Maximum;
double min = Minimum;
int num = 0;//the tick index
double val = min;//the value of the tick
while (val <= max)
{
DataTemplate template = null;
Tick tick = new Tick();
tick.Value = val;
if (num % MinorTickStep == 0)
{
tick.TickType = TickType.Minor;
template = GetTickTemplate(TickType.Minor, val);
}
if (num % MajorTickStep == 0)
{
tick.TickType = TickType.Major;
template = GetTickTemplate(TickType.Major, val);
}
tick.ContentTemplate = template;
tick.Content = val;
ticks.Add(tick);
Children.Insert(0, tick);
val += MinorTickStep;
num += MinorTickStep;
}
}
private void PositionTick(Tick tick, double x, double y, double rad)
{
// Tick tick = ticks[i];
double tickW = tick.DesiredSize.Width;
double tickH = tick.DesiredSize.Height;
double angle = GetAngleFromValue(tick.Value);
if (SweepDirection == SweepDirection.Counterclockwise)
angle = -angle;
//position the tick
double px = x + (rad) * Math.Sin(angle * Math.PI / 180);
double py = y - (rad) * Math.Cos(angle * Math.PI / 180);
px -= tickW / 2;
py -= tickH / 2;
tick.Arrange(new Rect(new Point(px, py), tick.DesiredSize));
//rotate the tick (if not label or if it is label and has rotation enabled)
if ((EnableLabelRotation && tick.TickType==TickType.Label) || tick.TickType!=TickType.Label)
{
RotateTransform tr = new RotateTransform();
tr.Angle = angle;
tick.RenderTransformOrigin = new Point(0.5, 0.5);
tick.RenderTransform = tr;
}
}
