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[optimize][pie] avoid label overlap (#56)

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This commit is contained in:
monitor1394
2022-06-28 13:23:32 +08:00
parent 6c9528cf19
commit 0f2f55e436
5 changed files with 69 additions and 27 deletions
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51
Runtime/Serie/Pie/PieHandler.cs
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@@ -15,11 +15,22 @@ namespace XCharts.Runtime
UpdateSerieContext();
}
public override void DrawBase(VertexHelper vh)
{
UpdateRuntimeData(serie);
DrawPieLabelLine(vh, serie, false);
}
public override void DrawSerie(VertexHelper vh)
{
UpdateRuntimeData(serie);
DrawPieLabelLine(vh, serie);
DrawPie(vh, serie);
chart.RefreshBasePainter();
}
public override void DrawUpper(VertexHelper vh)
{
DrawPieLabelLine(vh, serie, true);
}
public override void UpdateTooltipSerieParams(int dataIndex, bool showCategory, string category,
@@ -390,11 +401,13 @@ namespace XCharts.Runtime
return false;
}
private void DrawPieLabelLine(VertexHelper vh, Serie serie)
private void DrawPieLabelLine(VertexHelper vh, Serie serie, bool drawHightlight)
{
foreach (var serieData in serie.data)
{
var serieLabel = SerieHelper.GetSerieLabel(serie, serieData);
if (drawHightlight && !serieData.context.highlight) continue;
if (!drawHightlight && serieData.context.highlight) continue;
if (SerieLabelHelper.CanShowLabel(serie, serieData, serieLabel, 1))
{
int colorIndex = chart.m_LegendRealShowName.IndexOf(serieData.name);
@@ -435,7 +448,7 @@ namespace XCharts.Runtime
var pos2 = serieData.context.labelPosition;
if (pos2.x == 0)
{
pos2 = new Vector3(center.x + radius2 * currSin, center.y + radius2 * currCos);
//pos2 = new Vector3(center.x + radius2 * currSin, center.y + radius2 * currCos);
}
Vector3 pos4, pos6;
var horizontalLineCircleRadius = labelLine.lineWidth * 4f;
@@ -476,19 +489,27 @@ namespace XCharts.Runtime
var pos5X = (currAngle - startAngle) % 360 > 180 ?
pos2.x - labelLine.lineLength2 : pos2.x + labelLine.lineLength2;
var pos5 = new Vector3(pos5X, pos2.y);
switch (labelLine.lineType)
var angle = Vector3.Angle(pos1 - center, pos2 - pos1);
if (angle > 15)
{
case LabelLine.LineType.BrokenLine:
UGL.DrawLine(vh, pos1, pos2, pos5, labelLine.lineWidth, color);
break;
case LabelLine.LineType.Curves:
UGL.DrawCurves(vh, pos1, pos5, pos1, pos2, labelLine.lineWidth, color,
chart.settings.lineSmoothness);
break;
case LabelLine.LineType.HorizontalLine:
UGL.DrawCricle(vh, pos0, horizontalLineCircleRadius, color);
UGL.DrawLine(vh, pos6, pos4, labelLine.lineWidth, color);
break;
UGL.DrawLine(vh, pos1, pos5, labelLine.lineWidth, color);
}
else
{
switch (labelLine.lineType)
{
case LabelLine.LineType.BrokenLine:
UGL.DrawLine(vh, pos1, pos2, pos5, labelLine.lineWidth, color);
break;
case LabelLine.LineType.Curves:
UGL.DrawCurves(vh, pos1, pos5, pos1, pos2, labelLine.lineWidth, color,
chart.settings.lineSmoothness);
break;
case LabelLine.LineType.HorizontalLine:
UGL.DrawCricle(vh, pos0, horizontalLineCircleRadius, color);
UGL.DrawLine(vh, pos6, pos4, labelLine.lineWidth, color);
break;
}
}
}
}