From 98af9866a47cd7ac3665588501889601f7900ef4 Mon Sep 17 00:00:00 2001
From: vicanso <tree.xie@outlook.com>
Date: Wed, 27 Dec 2023 20:33:12 +0800
Subject: [PATCH] refactor: support label show for radar chart, #62

---
 echarts.go     | 5 +++++
 radar_chart.go | 9 ++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/echarts.go b/echarts.go
index fbe9a36..5a0e5a0 100644
--- a/echarts.go
+++ b/echarts.go
@@ -344,6 +344,11 @@ func (esList EChartsSeriesList) ToSeriesList() SeriesList {
 					Data: NewSeriesDataFromValues(dataItem.Value.values),
 					Max:  item.Max,
 					Min:  item.Min,
+					Label: SeriesLabel{
+						Color:    parseColor(item.Label.Color),
+						Show:     item.Label.Show,
+						Distance: item.Label.Distance,
+					},
 				})
 			}
 			continue
diff --git a/radar_chart.go b/radar_chart.go
index 429850d..f3d63b9 100644
--- a/radar_chart.go
+++ b/radar_chart.go
@@ -25,6 +25,7 @@ package charts
 import (
 	"errors"
 
+	"github.com/dustin/go-humanize"
 	"github.com/golang/freetype/truetype"
 	"github.com/wcharczuk/go-chart/v2"
 	"github.com/wcharczuk/go-chart/v2/drawing"
@@ -230,9 +231,15 @@ func (r *radarChart) render(result *defaultRenderResult, seriesList SeriesList)
 			StrokeColor: color,
 			FillColor:   dotFillColor,
 		})
-		for _, point := range linePoints {
+		for index, point := range linePoints {
 			seriesPainter.Circle(dotWith, point.X, point.Y)
 			seriesPainter.FillStroke()
+			if series.Label.Show && index < len(series.Data) {
+				value := humanize.FtoaWithDigits(series.Data[index].Value, 2)
+				b := seriesPainter.MeasureText(value)
+				seriesPainter.Text(value, point.X-b.Width()/2, point.Y)
+			}
+
 		}
 	}