fix: fix only one data of pie chart, #12

pie_chart.go

@@ -99,15 +99,7 @@ func (p *pieChart) render(result *defaultRenderResult, seriesList SeriesList) (B
 		seriesNames = seriesList.Names()
 	}
 	theme := opt.Theme
-	if len(values) == 1 {
-		seriesPainter.OverrideDrawingStyle(Style{
-			StrokeWidth: 1,
-			StrokeColor: theme.GetSeriesColor(0),
-			FillColor:   theme.GetSeriesColor(0),
-		})
-		seriesPainter.MoveTo(cx, cy).
-			Circle(radius, cx, cy)
-	} else {
+
 	currentValue := float64(0)
 	prevEndX := 0
 	prevEndY := 0
@@ -181,7 +173,6 @@ func (p *pieChart) render(result *defaultRenderResult, seriesList SeriesList) (B
 		}
 		seriesPainter.Text(text, x, y)
 	}
-	}
 
 	return p.p.box, nil
 }