internal void SetPosition4CircularLabel(CircularAxisLabel label, Boolean isLeft)
{
if (isLeft)
{
SetPosition4LeftCircularLabel(label);
}
else
{
SetPosition4RightCircularLabel(label);
}
}
private void SetPosition4RightCircularLabel(CircularAxisLabel label)
{
Point newPos = new Point(label.Position.X, label.Position.Y);
if (Math.Round(label.Angle, 1) == Math.Round(Math.PI / 2, 1))
{
SetPositionBottom(newPos);
}
else if (Math.Round(label.Angle, 1) == Math.Round(3 * Math.PI / 2, 1))
{
SetPositionTop(newPos);
}
else
{
SetPositionRight(newPos);
}
}
internal void RearrangeLabelsAtRight(CircularAxisLabel label, Size baseArea, out Point newPos)
{
Double left = (Double)Visual.GetValue(Canvas.LeftProperty);
Double top = (Double)Visual.GetValue(Canvas.TopProperty);
if (label.Angle == Math.PI / 2 && top + ActualHeight > baseArea.Height)
{
newPos = new Point(label.Position.X, label.Position.Y - (top + ActualHeight - baseArea.Height));
}
else if (label.Angle == 3 * Math.PI / 2 && top < 0)
{
newPos = new Point(label.Position.X, label.Position.Y + Math.Abs(top));
}
else if (left + ActualWidth > baseArea.Width)
{
newPos = new Point(label.Position.X - Math.Abs((left + ActualWidth) - baseArea.Width), label.Position.Y);
}
else
{
newPos = label.Position;
}
}
internal void SetPosition4CircularLabel(CircularAxisLabel label, Boolean isLeft)
{
if (isLeft)
SetPosition4LeftCircularLabel(label);
else
SetPosition4RightCircularLabel(label);
}
internal void RearrangeLabelsAtRight(CircularAxisLabel label, Size baseArea, out Point newPos)
{
Double left = (Double)Visual.GetValue(Canvas.LeftProperty);
Double top = (Double)Visual.GetValue(Canvas.TopProperty);
if (label.Angle == Math.PI / 2 && top + ActualHeight > baseArea.Height)
newPos = new Point(label.Position.X, label.Position.Y - (top + ActualHeight - baseArea.Height));
else if (label.Angle == 3 * Math.PI / 2 && top < 0)
newPos = new Point(label.Position.X, label.Position.Y + Math.Abs(top));
else if (left + ActualWidth > baseArea.Width)
newPos = new Point(label.Position.X - Math.Abs((left + ActualWidth) - baseArea.Width), label.Position.Y);
else
newPos = label.Position;
}
private void SetPosition4RightCircularLabel(CircularAxisLabel label)
{
Point newPos = new Point(label.Position.X, label.Position.Y);
if (Math.Round(label.Angle, 1) == Math.Round(Math.PI / 2, 1))
SetPositionBottom(newPos);
else if (Math.Round(label.Angle, 1) == Math.Round(3 * Math.PI / 2, 1))
SetPositionTop(newPos);
else
SetPositionRight(newPos);
}
private void PositionLabelsCircular()
{
// set the width of the canvas
Visual.Width = Width;
Visual.Height = Height;
// Calculate Default placement values
CalculateHorizontalDefaults4CircularAxis(Width, Height);
List<Point> points = ParentAxis.CircularPlotDetails.ListOfPoints4CircularAxis;
Double radius = ParentAxis.CircularPlotDetails.Radius;
Point center = ParentAxis.CircularPlotDetails.Center;
List<CircularAxisLabel> circularAxisLabels = new List<CircularAxisLabel>();
for (Int32 i = 0; i < AxisLabelList.Count; i += (ParentAxis.SkipOffset + 1))
{
AxisLabel label = AxisLabelList[i];
CircularAxisLabel clabel = new CircularAxisLabel(points[i], center, radius, radius, label, i);
label._padding4AxisXLabelInCircularChart = 8;
if ((clabel.Angle > 3 * Math.PI / 2 && clabel.Angle < 2 * Math.PI - 0.35)
|| (clabel.Angle > Math.PI + 0.35 && clabel.Angle < 3 * Math.PI / 2))
{
label._padding4AxisYLabelInCircularChart = 4;
}
else if ((clabel.Angle > 0.35 && clabel.Angle < Math.PI / 2)
|| (clabel.Angle > Math.PI / 2 && clabel.Angle < Math.PI - 0.35))
{
label._padding4AxisYLabelInCircularChart = -4;
}
circularAxisLabels.Add(clabel);
}
List<CircularAxisLabel> labelsAtLeft;
List<CircularAxisLabel> labelsAtRight;
Axis.GetLeftAndRightLabels(circularAxisLabels, out labelsAtLeft, out labelsAtRight);
foreach (CircularAxisLabel label in labelsAtLeft)
{
label.AxisLabel.SetPosition4CircularLabel(label, true);
Point newPos;
label.AxisLabel.RearrangeLabelsAtLeft(label, new Size(Width, Height), out newPos);
label.NextPosition = newPos;
Visual.Children.Add(label.AxisLabel.Visual);
}
foreach (CircularAxisLabel label in labelsAtRight)
{
label.AxisLabel.SetPosition4CircularLabel(label, false);
Point newPos;
label.AxisLabel.RearrangeLabelsAtRight(label, new Size(Width, Height), out newPos);
label.NextPosition = newPos;
Visual.Children.Add(label.AxisLabel.Visual);
}
UpdatePosition4LabelAtMinimumDistance(labelsAtLeft, labelsAtRight);
}