public override Vector3 GetSerieDataLabelPosition(SerieData serieData, LabelStyle label)
{
var labelLine = SerieHelper.GetSerieLabelLine(serie, serieData);
return(SerieLabelHelper.GetRealLabelPosition(serie, serieData, label, labelLine));
}
private void UpdateRuntimeData(Serie serie)
{
var data = serie.data;
serie.context.dataMax = serie.yMax;
serie.context.startAngle = GetStartAngle(serie);
var runtimePieDataTotal = serie.yTotal;
SerieHelper.UpdateCenter(serie, chart.chartPosition, chart.chartWidth, chart.chartHeight);
float startDegree = serie.context.startAngle;
float totalDegree = 0;
float zeroReplaceValue = 0;
int showdataCount = 0;
foreach (var sd in serie.data)
{
if (sd.show && serie.pieRoseType == RoseType.Area)
{
showdataCount++;
}
sd.context.canShowLabel = false;
}
float dataChangeDuration = serie.animation.GetUpdateAnimationDuration();
bool isAllZeroValue = SerieHelper.IsAllZeroValue(serie, 1);
var dataTotalFilterMinAngle = runtimePieDataTotal;
if (isAllZeroValue)
{
totalDegree = 360;
zeroReplaceValue = totalDegree / data.Count;
serie.context.dataMax = zeroReplaceValue;
runtimePieDataTotal = 360;
dataTotalFilterMinAngle = 360;
}
else
{
dataTotalFilterMinAngle = GetTotalAngle(serie, runtimePieDataTotal, ref totalDegree);
}
for (int n = 0; n < data.Count; n++)
{
var serieData = data[n];
serieData.index = n;
var value = isAllZeroValue ? zeroReplaceValue : serieData.GetCurrData(1, dataChangeDuration);
serieData.context.startAngle = startDegree;
serieData.context.toAngle = startDegree;
serieData.context.halfAngle = startDegree;
serieData.context.currentAngle = startDegree;
if (!serieData.show)
{
continue;
}
float degree = serie.pieRoseType == RoseType.Area ?
(totalDegree / showdataCount) :
(float)(totalDegree * value / dataTotalFilterMinAngle);
if (serie.minAngle > 0 && degree < serie.minAngle)
{
degree = serie.minAngle;
}
serieData.context.toAngle = startDegree + degree;
if (serieData.radius > 0)
{
serieData.context.outsideRadius = ChartHelper.GetActualValue(serieData.radius, Mathf.Min(chart.chartWidth, chart.chartHeight));
}
else
{
serieData.context.outsideRadius = serie.pieRoseType > 0 ?
serie.context.insideRadius + (float)((serie.context.outsideRadius - serie.context.insideRadius) * value / serie.context.dataMax) :
serie.context.outsideRadius;
}
if (serieData.context.highlight)
{
serieData.context.outsideRadius += chart.theme.serie.pieTooltipExtraRadius;
}
var offset = 0f;
if (serie.pieClickOffset && serieData.selected)
{
offset += chart.theme.serie.pieSelectedOffset;
}
if (serie.animation.CheckDetailBreak(serieData.context.toAngle))
{
serieData.context.currentAngle = serie.animation.GetCurrDetail();
}
else
{
serieData.context.currentAngle = serieData.context.toAngle;
}
var halfDegree = (serieData.context.toAngle - startDegree) / 2;
serieData.context.halfAngle = startDegree + halfDegree;
serieData.context.offsetCenter = serie.context.center;
serieData.context.insideRadius = serie.context.insideRadius;
if (offset > 0)
{
var currRad = serieData.context.halfAngle * Mathf.Deg2Rad;
var currSin = Mathf.Sin(currRad);
var currCos = Mathf.Cos(currRad);
serieData.context.offsetRadius = 0;
serieData.context.insideRadius -= serieData.context.offsetRadius;
serieData.context.outsideRadius -= serieData.context.offsetRadius;
if (serie.pieClickOffset && serieData.selected)
{
serieData.context.offsetRadius += chart.theme.serie.pieSelectedOffset;
if (serieData.context.insideRadius > 0)
{
serieData.context.insideRadius += chart.theme.serie.pieSelectedOffset;
}
serieData.context.outsideRadius += chart.theme.serie.pieSelectedOffset;
}
serieData.context.offsetCenter = new Vector3(
serie.context.center.x + serieData.context.offsetRadius * currSin,
serie.context.center.y + serieData.context.offsetRadius * currCos);
}
serieData.context.canShowLabel = serieData.context.currentAngle >= serieData.context.halfAngle;
startDegree = serieData.context.toAngle;
SerieLabelHelper.UpdatePieLabelPosition(serie, serieData);
}
SerieLabelHelper.AvoidLabelOverlap(serie, chart.theme.common);
}