plot/plotter/filledLine_example_test.go at master · gonum/plot · GitHub

History

53 lines (44 loc) · 1.11 KB

Raw

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

package plotter_test

import (

"image/color"

"log"

"math/rand/v2"

"runtime"

"gonum.org/v1/plot"

"gonum.org/v1/plot/plotter"

)

func ExampleLine_filledLine() {

rnd := rand.New(rand.NewPCG(1, 1))

// randomPoints returns some random x, y points

// with some interesting kind of trend.

randomPoints := func(n int, x float64) plotter.XYs {

pts := make(plotter.XYs, n)

for i := range pts {

if i == 0 {

pts[i].X = x + rnd.Float64()

} else {

pts[i].X = pts[i-1].X + 0.5 + rnd.Float64()

}

pts[i].Y = -5. + 10*rnd.Float64()

}

return pts

}

p := plot.New()

p.Title.Text = "Filled Line Example"

p.X.Label.Text = "X"

p.Y.Label.Text = "Y"

p.Add(plotter.NewGrid())

filled, err := plotter.NewLine(randomPoints(4, 0))

if err != nil {

log.Panic(err)

}

filled.FillColor = color.RGBA{R: 196, G: 255, B: 196, A: 255}

p.Add(filled)

err = p.Save(200, 200, "testdata/filledLine_"+runtime.GOARCH+".png")

if err != nil {

log.Panic(err)

}

plot/plotter/filledLine_example_test.go at master · gonum/plot · GitHub

Expand file tree

Breadcrumbs

filledLine_example_test.go

Latest commit

History

Breadcrumbs

filledLine_example_test.go

File metadata and controls