updates.

testserver/main.go

@@ -0,0 +1,58 @@
+package main
+
+import (
+	"bytes"
+	"log"
+	"time"
+
+	"github.com/wcharczuk/go-chart"
+	"github.com/wcharczuk/go-web"
+)
+
+func main() {
+	app := web.New()
+	app.SetName("Chart Test Server")
+	app.SetLogger(web.NewStandardOutputLogger())
+	app.GET("/", func(rc *web.RequestContext) web.ControllerResult {
+		rc.Response.Header().Set("Content-Type", "image/png")
+		now := time.Now()
+		c := chart.Chart{
+			Title: "Hello!",
+			TitleStyle: chart.Style{
+				Show: true,
+			},
+			Width:  1024,
+			Height: 400,
+			Padding: chart.Box{
+				Right:  40,
+				Bottom: 40,
+			},
+			Axes: chart.Style{
+				Show:        true,
+				StrokeWidth: 1.0,
+			},
+			YRange: chart.Range{
+				Min: 0.0,
+				Max: 7.0,
+			},
+			Series: []chart.Series{
+				chart.TimeSeries{
+					Name: "goog",
+					Style: chart.Style{
+						StrokeWidth: 1.0,
+					},
+					XValues: []time.Time{now.AddDate(0, 0, -4), now.AddDate(0, 0, -3), now.AddDate(0, 0, -2), now.AddDate(0, 0, -1)},
+					YValues: []float64{2.5, 5.0, 2.0, 3.0},
+				},
+			},
+		}
+
+		buffer := bytes.NewBuffer([]byte{})
+		err := c.Render(chart.PNG, buffer)
+		if err != nil {
+			return rc.API().InternalError(err)
+		}
+		return rc.Raw(buffer.Bytes())
+	})
+	log.Fatal(app.Start())
+}