50 lines
1,017 B
Go
50 lines
1,017 B
Go
package main
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import (
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"io/ioutil"
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"log"
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charts "github.com/vicanso/go-charts"
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)
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func echartsRender() ([]byte, error) {
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return charts.RenderEChartsToPNG(`{
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"title": {
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"text": "用户访问次数",
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"textStyle": {
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"fontFamily": "chinese"
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}
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},
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"xAxis": {
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"data": ["周一", "周二", "周三", "周四", "周五", "周六", "周日"]
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},
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"series": [
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{
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"data": [150, 230, 224, 218, 135, 147, 260],
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"label": {
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"show": true
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}
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}
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]
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}`)
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}
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func main() {
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fontData, err := ioutil.ReadFile("/Users/darcy/Downloads/NotoSansCJKsc-VF.ttf")
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if err != nil {
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log.Fatalln("Error when reading font file:", err)
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}
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if err := charts.InstallFont("chinese", fontData); err != nil {
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log.Fatalln("Error when instaling font:", err)
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}
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fileData, err := echartsRender()
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if err != nil {
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log.Fatalln("Error when rendering image:", err)
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}
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if err := ioutil.WriteFile("chinese.png", fileData, 0644); err != nil {
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log.Fatalln("Error when save image to chinese.png:", err)
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}
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}
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