79 lines
1.1 KiB
Go
79 lines
1.1 KiB
Go
package main
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"github.com/vicanso/go-charts"
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)
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func writeFile(buf []byte) error {
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tmpPath := "./tmp"
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err := os.MkdirAll(tmpPath, 0700)
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if err != nil {
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return err
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}
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file := filepath.Join(tmpPath, "horizontal-bar-chart.png")
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err = ioutil.WriteFile(file, buf, 0600)
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if err != nil {
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return err
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}
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return nil
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}
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func main() {
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values := [][]float64{
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{
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18203,
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23489,
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29034,
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104970,
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131744,
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630230,
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},
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{
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19325,
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23438,
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31000,
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121594,
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134141,
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681807,
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},
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}
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p, err := charts.HorizontalBarRender(
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values,
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charts.TitleTextOptionFunc("World Population"),
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charts.PaddingOptionFunc(charts.Box{
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Top: 20,
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Right: 40,
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Bottom: 20,
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Left: 20,
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}),
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charts.LegendLabelsOptionFunc([]string{
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"2011",
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"2012",
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}),
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charts.YAxisDataOptionFunc([]string{
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"Brazil",
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"Indonesia",
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"USA",
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"India",
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"China",
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"World",
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}),
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)
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if err != nil {
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panic(err)
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}
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buf, err := p.Bytes()
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if err != nil {
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panic(err)
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}
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err = writeFile(buf)
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if err != nil {
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panic(err)
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}
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}
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