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// Copyright ©2015 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"
"gonum.org/v1/plot"
"gonum.org/v1/plot/plotter"
"gonum.org/v1/plot/vg"
)
// Draw the plot logo.
func Example() {
p, err := plot.New()
if err != nil {
log.Panic(err)
}
plotter.DefaultLineStyle.Width = vg.Points(1)
plotter.DefaultGlyphStyle.Radius = vg.Points(3)
p.Y.Tick.Marker = plot.ConstantTicks([]plot.Tick{
{Value: 0, Label: "0"}, {Value: 0.25, Label: ""}, {Value: 0.5, Label: "0.5"}, {Value: 0.75, Label: ""}, {Value: 1, Label: "1"},
})
p.X.Tick.Marker = plot.ConstantTicks([]plot.Tick{
{Value: 0, Label: "0"}, {Value: 0.25, Label: ""}, {Value: 0.5, Label: "0.5"}, {Value: 0.75, Label: ""}, {Value: 1, Label: "1"},
})
pts := plotter.XYs{{X: 0, Y: 0}, {X: 0, Y: 1}, {X: 0.5, Y: 1}, {X: 0.5, Y: 0.6}, {X: 0, Y: 0.6}}
line, err := plotter.NewLine(pts)
if err != nil {
log.Panic(err)
}
scatter, err := plotter.NewScatter(pts)
if err != nil {
log.Panic(err)
}
p.Add(line, scatter)
pts = plotter.XYs{{X: 1, Y: 0}, {X: 0.75, Y: 0}, {X: 0.75, Y: 0.75}}
line, err = plotter.NewLine(pts)
if err != nil {
log.Panic(err)
}
scatter, err = plotter.NewScatter(pts)
if err != nil {
log.Panic(err)
}
p.Add(line, scatter)
pts = plotter.XYs{{X: 0.5, Y: 0.5}, {X: 1, Y: 0.5}}
line, err = plotter.NewLine(pts)
if err != nil {
log.Panic(err)
}
scatter, err = plotter.NewScatter(pts)
if err != nil {
log.Panic(err)
}
p.Add(line, scatter)
err = p.Save(100, 100, "testdata/plotLogo.png")
if err != nil {
log.Panic(err)
}
}
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