go-chart/_examples/custom_padding/main.go

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package main
import (
"net/http"
"github.com/wcharczuk/go-chart"
"github.com/wcharczuk/go-chart/drawing"
"github.com/wcharczuk/go-chart/seq"
)
func drawChart(res http.ResponseWriter, req *http.Request) {
graph := chart.Chart{
Background: chart.Style{
Padding: chart.Box{
Top: 50,
Left: 25,
Right: 25,
Bottom: 10,
},
FillColor: drawing.ColorFromHex("efefef"),
},
XAxis: chart.XAxis{
Style: chart.StyleShow(),
},
YAxis: chart.YAxis{
Style: chart.StyleShow(),
},
Series: []chart.Series{
chart.ContinuousSeries{
XValues: seq.Range(1.0, 100.0),
YValues: seq.RandomValuesWithMax(100, 512),
},
},
}
res.Header().Set("Content-Type", "image/png")
graph.Render(chart.PNG, res)
}
func drawChartDefault(res http.ResponseWriter, req *http.Request) {
graph := chart.Chart{
Background: chart.Style{
FillColor: drawing.ColorFromHex("efefef"),
},
XAxis: chart.XAxis{
Style: chart.StyleShow(),
},
YAxis: chart.YAxis{
Style: chart.StyleShow(),
},
Series: []chart.Series{
chart.ContinuousSeries{
XValues: seq.Range(1.0, 100.0),
YValues: seq.RandomValuesWithMax(100, 512),
},
},
}
res.Header().Set("Content-Type", "image/png")
graph.Render(chart.PNG, res)
}
func main() {
http.HandleFunc("/", drawChart)
http.HandleFunc("/default", drawChartDefault)
http.ListenAndServe(":8080", nil)
}