internal override void TransformTick(AxisTickModel tick, FrameworkElement visual)
{
PolarChartAreaModel chartAreaModel = this.chart.chartArea as PolarChartAreaModel;
double startAngle = chartAreaModel.StartAngle;
visual.RenderTransformOrigin = new Point(0.5, 0);
double rotationAngle = chartAreaModel.AngleAxis.IsInverse ? startAngle : 360 - startAngle;
visual.RenderTransform = new RotateTransform()
{
Angle = rotationAngle
};
}
internal override void UpdateAxisLine(ChartLayoutContext context)
{
PolarChartAreaModel chartArea = this.chart.chartArea as PolarChartAreaModel;
double angle = chartArea.NormalizeAngle(0);
RadPoint center = chartArea.plotArea.layoutSlot.Center;
RadPoint point = RadMath.GetArcPoint(angle, center, chartArea.plotArea.layoutSlot.Width / 2);
double antiAliasOffset = this.model.LineThickness % 2 == 1 ? 0.5 : 0;
this.line.X1 = center.X;
this.line.Y1 = center.Y - antiAliasOffset;
this.line.X2 = point.X;
this.line.Y2 = point.Y - antiAliasOffset;
base.UpdateAxisLine(context);
}
private void ArrangePolarStripes()
{
int polarStripeIndex = 0;
if ((this.stripesVisibility & PolarGridLineVisibility.Polar) == PolarGridLineVisibility.Polar)
{
RadPolarVector vector;
RadPolarVector nextVector;
PolarChartAreaModel polarChartAreaModel = this.chart.chartArea as PolarChartAreaModel;
bool largeArc = (polarChartAreaModel.AngleAxis as IRadialAxis).IsLargeArc;
int stripeCount = this.model.polarLines.Count;
for (; polarStripeIndex < stripeCount; polarStripeIndex++)
{
vector = this.model.polarLines[polarStripeIndex];
if (polarStripeIndex < stripeCount - 1)
{
nextVector = this.model.polarLines[polarStripeIndex + 1];
}
else
{
nextVector = this.model.polarLines[0];
}
Path path = this.GetPolarStripe(polarStripeIndex);
path.Data = this.BuildPolarStripe(vector, nextVector, largeArc);
}
}
// hide not used paths
while (polarStripeIndex < this.polarStripes.Count)
{
this.polarStripes[polarStripeIndex].Visibility = Visibility.Collapsed;
polarStripeIndex++;
}
}