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// Copyright ©2017 The Gonum Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package plotter_test
import (
"log"
"testing"
"gonum.org/v1/plot"
"gonum.org/v1/plot/cmpimg"
"gonum.org/v1/plot/plotter"
)
func TestFloatPrecision(t *testing.T) {
const fname = "precision.png"
cmpimg.CheckPlot(func() {
p, err := plot.New()
if err != nil {
log.Fatal(err)
}
p.X.Label.Text = "x"
p.Y.Label.Text = "y"
var data = make(plotter.XYs, 10)
for i := range data {
data[i].X = float64(i)
data[i].Y = 1300
}
lines, points, err := plotter.NewLinePoints(data)
if err != nil {
log.Fatal(err)
}
p.Add(points, lines)
p.Add(plotter.NewGrid())
err = p.Save(300, 300, "testdata/"+fname)
if err != nil {
log.Fatal(err)
}
}, t, fname)
}
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