package main import ( "net/http" "github.com/wcharczuk/go-chart" ) func drawChart(res http.ResponseWriter, req *http.Request) { /* In this example we set a rotation on the style for the custom ticks from the `custom_ticks` example. */ graph := chart.Chart{ YAxis: chart.YAxis{ Style: chart.Style{ Show: true, }, Range: &chart.ContinuousRange{ Min: 0.0, Max: 4.0, }, TickStyle: chart.Style{ TextRotationDegrees: 45.0, }, Ticks: []chart.Tick{ {Value: 0.0, Label: "0.00"}, {Value: 2.0, Label: "2.00"}, {Value: 4.0, Label: "4.00"}, {Value: 6.0, Label: "6.00"}, {Value: 8.0, Label: "Eight"}, {Value: 10.0, Label: "Ten"}, }, }, XAxis: chart.XAxis{ Style: chart.Style{ Show: true, }, TickStyle: chart.Style{ TextRotationDegrees: 45.0, }, Ticks: []chart.Tick{ {Value: 0.0, Label: "0.00"}, {Value: 2.0, Label: "2.00"}, {Value: 4.0, Label: "4.00"}, {Value: 6.0, Label: "6.00"}, {Value: 8.0, Label: "Eight"}, {Value: 10.0, Label: "Ten"}, }, }, Series: []chart.Series{ chart.ContinuousSeries{ XValues: []float64{1.0, 2.0, 3.0, 4.0, 5.0}, YValues: []float64{1.0, 2.0, 3.0, 4.0, 5.0}, }, }, } res.Header().Set("Content-Type", "image/png") graph.Render(chart.PNG, res) } func main() { http.HandleFunc("/", drawChart) http.ListenAndServe(":8080", nil) }