go-chart/_examples/basic/main.go
2018-12-06 16:46:27 +01:00

44 lines
912 B
Go

package main
import (
"log"
"net/http"
"git.gutmet.org/go-chart.git"
)
func drawChart(res http.ResponseWriter, req *http.Request) {
graph := chart.Chart{
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 drawChartWide(res http.ResponseWriter, req *http.Request) {
graph := chart.Chart{
Width: 1920, //this overrides the default.
Series: []chart.Series{
chart.ContinuousSeries{
XValues: []float64{1.0, 2.0, 3.0, 4.0},
YValues: []float64{1.0, 2.0, 3.0, 4.0},
},
},
}
res.Header().Set("Content-Type", "image/png")
graph.Render(chart.PNG, res)
}
func main() {
http.HandleFunc("/", drawChart)
http.HandleFunc("/wide", drawChartWide)
log.Fatal(http.ListenAndServe(":8080", nil))
}