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refactor: add examples of chart

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This commit is contained in:
vicanso 2022-02-12 11:22:08 +08:00
parent e558634dda
commit 4262b148ca
10 changed files with 796 additions and 100 deletions
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9
pie_chart.go
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@ -38,7 +38,6 @@ func getPieStyle(theme *Theme, index int) chart.Style {
StrokeWidth: 1,
FillColor: seriesColor,
}
}
func pieChartRender(opt ChartOption, result *basicRenderResult) error {
@ -86,7 +85,11 @@ func pieChartRender(opt ChartOption, result *basicRenderResult) error {
if radius <= 0 {
radius = float64(diameter) * defaultRadiusPercent
}
labelRadius := radius + 20
labelLineWidth := 15
if radius < 50 {
labelLineWidth = 10
}
labelRadius := radius + float64(labelLineWidth)
seriesNames := opt.Legend.Data
@ -126,7 +129,7 @@ func pieChartRender(opt ChartOption, result *basicRenderResult) error {
endy := cy + int(labelRadius*math.Sin(angle))
d.moveTo(startx, starty)
d.lineTo(endx, endy)
offset := 30
offset := labelLineWidth
if endx < cx {
offset *= -1
}