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// Copyright ©2016 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 vgtex_test
import (
"log"
"os"
"gonum.org/v1/plot"
"gonum.org/v1/plot/plotter"
"gonum.org/v1/plot/vg"
"gonum.org/v1/plot/vg/draw"
"gonum.org/v1/plot/vg/vgtex"
)
// An example of making a LaTeX plot.
func Example() {
scatter, err := plotter.NewScatter(plotter.XYs{{X: 1, Y: 1}, {X: 0, Y: 1}, {X: 0, Y: 0}})
if err != nil {
log.Fatal(err)
}
p, err := plot.New()
if err != nil {
log.Fatal(err)
}
p.Add(scatter)
// p.HideAxes()
p.Title.Text = `A scatter plot: $\sqrt{\frac{e^{3i\pi}}{2\cos 3\pi}}$`
p.X.Label.Text = `$x = \eta$`
p.Y.Label.Text = `$y$ is some $\Phi$`
c := vgtex.NewDocument(5*vg.Centimeter, 5*vg.Centimeter)
p.Draw(draw.New(c))
c.FillString(p.Title.Font, vg.Point{X: 2.5 * vg.Centimeter, Y: 2.5 * vg.Centimeter}, "x")
f, err := os.Create("testdata/scatter.tex")
if err != nil {
log.Fatal(err)
}
defer f.Close()
if _, err = c.WriteTo(f); err != nil {
log.Fatal(err)
}
err = f.Close()
if err != nil {
log.Fatal(err)
}
}
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