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samplecharts.go
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/
samplecharts.go
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package main
import (
"flag"
"fmt"
"image"
"image/color"
"image/draw"
"image/png"
"log"
"math"
"math/rand"
"os"
"sort"
"time"
"github.com/ajstarks/svgo"
"github.com/vdobler/chart"
"github.com/vdobler/chart/imgg"
"github.com/vdobler/chart/svgg"
"github.com/vdobler/chart/txtg"
)
var (
data1 = []float64{15e-7, 30e-7, 35e-7, 50e-7, 70e-7, 75e-7, 80e-7, 32e-7, 35e-7, 70e-7, 65e-7}
data10 = []float64{34567, 35432, 37888, 39991, 40566, 42123, 44678}
data2 = []float64{10e-7, 11e-7, 12e-7, 22e-7, 25e-7, 33e-7}
data3 = []float64{50e-7, 55e-7, 55e-7, 60e-7, 50e-7, 65e-7, 60e-7, 65e-7, 55e-7, 50e-7}
)
var Background = color.RGBA{0xff, 0xff, 0xff, 0xff}
// -------------------------------------------------------------------------
// Dumper
// Dumper helps saving plots of size WxH in a NxM grid layout
// in several formats
type Dumper struct {
N, M, W, H, Cnt int
S *svg.SVG
I *image.RGBA
svgFile, imgFile, txtFile *os.File
}
func NewDumper(name string, n, m, w, h int) *Dumper {
var err error
dumper := Dumper{N: n, M: m, W: w, H: h}
dumper.svgFile, err = os.Create(name + ".svg")
if err != nil {
panic(err)
}
dumper.S = svg.New(dumper.svgFile)
dumper.S.Start(n*w, m*h)
dumper.S.Title(name)
dumper.S.Rect(0, 0, n*w, m*h, "fill: #ffffff")
dumper.imgFile, err = os.Create(name + ".png")
if err != nil {
panic(err)
}
dumper.I = image.NewRGBA(image.Rect(0, 0, n*w, m*h))
bg := image.NewUniform(color.RGBA{0xff, 0xff, 0xff, 0xff})
draw.Draw(dumper.I, dumper.I.Bounds(), bg, image.ZP, draw.Src)
dumper.txtFile, err = os.Create(name + ".txt")
if err != nil {
panic(err)
}
return &dumper
}
func (d *Dumper) Close() {
png.Encode(d.imgFile, d.I)
d.imgFile.Close()
d.S.End()
d.svgFile.Close()
d.txtFile.Close()
}
func (d *Dumper) Plot(c chart.Chart) {
row, col := d.Cnt/d.N, d.Cnt%d.N
igr := imgg.AddTo(d.I, col*d.W, row*d.H, d.W, d.H, color.RGBA{0xff, 0xff, 0xff, 0xff}, nil, nil)
c.Plot(igr)
sgr := svgg.AddTo(d.S, col*d.W, row*d.H, d.W, d.H, "", 12, color.RGBA{0xff, 0xff, 0xff, 0xff})
c.Plot(sgr)
tgr := txtg.New(100, 30)
c.Plot(tgr)
d.txtFile.Write([]byte(tgr.String() + "\n\n\n"))
d.Cnt++
}
// -------------------------------------------------------------------------
// Individual Charts
//
// Some sample strip charts
//
func stripChart() {
dumper := NewDumper("xstrip1", 2, 2, 400, 300)
defer dumper.Close()
c := chart.StripChart{}
c.AddData("Sample A", data1, chart.Style{})
c.AddData("Sample B", data2, chart.Style{})
c.AddData("Sample C", data3, chart.Style{})
c.Title = "Sample Strip Chart (no Jitter)"
c.XRange.Label = "X - Axis"
c.Key.Pos = "icr"
dumper.Plot(&c)
c.Jitter = true
c.Title = "Sample Strip Chart (with Jitter)"
dumper.Plot(&c)
c.Key.Hide = true
dumper.Plot(&c)
c.Jitter = false
c.Title = "Sample Strip Chart (no Jitter)"
dumper.Plot(&c)
}
//
// All different key styles
//
func keyStyles() {
dumper := NewDumper("xkey", 6, 6, 400, 300)
defer dumper.Close()
p := chart.ScatterChart{Title: "Key Placement"}
p.XRange.TicSetting.Mirror, p.YRange.TicSetting.Mirror = 1, 1
p.XRange.MinMode.Fixed, p.XRange.MaxMode.Fixed = true, true
p.XRange.MinMode.Value, p.XRange.MaxMode.Value = -5, 5
p.XRange.Min, p.XRange.Max = -5, 5
p.XRange.TicSetting.Delta = 2
p.YRange.MinMode.Fixed, p.YRange.MaxMode.Fixed = true, true
p.YRange.MinMode.Value, p.YRange.MaxMode.Value = -5, 5
p.YRange.Min, p.YRange.Max = -5, 5
p.YRange.TicSetting.Delta = 3
p.AddFunc("Sin", func(x float64) float64 { return math.Sin(x) }, chart.PlotStyleLines,
chart.Style{LineColor: color.NRGBA{0xa0, 0x00, 0x00, 0xff}, LineWidth: 1, LineStyle: 1})
p.AddFunc("Cos", func(x float64) float64 { return math.Cos(x) }, chart.PlotStyleLines,
chart.Style{LineColor: color.NRGBA{0x00, 0xa0, 0x00, 0xff}, LineWidth: 1, LineStyle: 1})
p.AddFunc("Tan", func(x float64) float64 { return math.Tan(x) }, chart.PlotStyleLines,
chart.Style{LineColor: color.NRGBA{0x00, 0x00, 0xa0, 0xff}, LineWidth: 1, LineStyle: 1})
for _, pos := range []string{"itl", "itc", "itr", "icl", "icc", "icr", "ibl", "ibc", "ibr",
"otl", "otc", "otr", "olt", "olc", "olb", "obl", "obc", "obr", "ort", "orc", "orb"} {
p.Key.Pos = pos
p.Title = "Key Placement: " + pos
dumper.Plot(&p)
}
p.Key.Pos = "itl"
p.AddFunc("Log", func(x float64) float64 { return math.Log(x) }, chart.PlotStyleLines,
chart.Style{LineColor: color.NRGBA{0xff, 0x60, 0x60, 0xff}, LineWidth: 1, LineStyle: 1})
p.AddFunc("Exp", func(x float64) float64 { return math.Exp(x) }, chart.PlotStyleLines,
chart.Style{LineColor: color.NRGBA{0x60, 0xff, 0x60, 0xff}, LineWidth: 1, LineStyle: 1})
p.AddFunc("Atan", func(x float64) float64 { return math.Atan(x) }, chart.PlotStyleLines,
chart.Style{LineColor: color.NRGBA{0x60, 0x60, 0xff, 0xff}, LineWidth: 1, LineStyle: 1})
p.AddFunc("Y1", func(x float64) float64 { return math.Y1(x) }, chart.PlotStyleLines,
chart.Style{LineColor: color.NRGBA{0xd0, 0xd0, 0x00, 0xff}, LineWidth: 1, LineStyle: 1})
for _, cols := range []int{-4, -3, -2, -1, 0, 1, 2, 3, 4} {
p.Key.Cols = cols
p.Title = fmt.Sprintf("Key Cols: %d", cols)
dumper.Plot(&p)
}
}
//
// Scatter plots with different tic/grid settings
//
func scatterTics() {
dumper := NewDumper("xstrip1", 3, 3, 400, 300)
defer dumper.Close()
p := chart.ScatterChart{Title: "Sample Scatter Chart"}
p.AddDataPair("Sample A", data10, data1, chart.PlotStylePoints, chart.Style{})
p.XRange.TicSetting.Delta = 5000
p.XRange.Label = "X - Value"
p.YRange.Label = "Y - Value"
dumper.Plot(&p)
p.XRange.TicSetting.Hide, p.YRange.TicSetting.Hide = true, true
dumper.Plot(&p)
p.YRange.TicSetting.Hide = false
p.XRange.TicSetting.Grid, p.YRange.TicSetting.Grid = chart.GridLines, chart.GridLines
dumper.Plot(&p)
p.XRange.TicSetting.Hide, p.YRange.TicSetting.Hide = false, false
p.XRange.TicSetting.Mirror, p.YRange.TicSetting.Mirror = 1, 2
dumper.Plot(&p)
c := chart.ScatterChart{Title: "Own tics"}
c.XRange.Fixed(0, 4*math.Pi, math.Pi)
c.YRange.Fixed(-1.25, 1.25, 0.5)
c.XRange.TicSetting.Format = func(f float64) string {
w := int(180*f/math.Pi + 0.5)
return fmt.Sprintf("%d°", w)
}
c.AddFunc("Sin(x)", func(x float64) float64 { return math.Sin(x) }, chart.PlotStyleLines,
chart.Style{Symbol: '@', LineWidth: 2, LineColor: color.NRGBA{0x00, 0x00, 0xcc, 0xff}, LineStyle: 0})
c.AddFunc("Cos(x)", func(x float64) float64 { return math.Cos(x) }, chart.PlotStyleLines,
chart.Style{Symbol: '%', LineWidth: 2, LineColor: color.NRGBA{0x00, 0xcc, 0x00, 0xff}, LineStyle: 0})
dumper.Plot(&c)
c.Title = "Tic Variants"
c.XRange.TicSetting.Tics = 1
c.YRange.TicSetting.Tics = 2
dumper.Plot(&c)
c.Title = "Blocked Grid"
c.XRange.TicSetting.Tics = 1
c.YRange.TicSetting.Tics = 1
c.XRange.TicSetting.Mirror, c.YRange.TicSetting.Mirror = 1, 1
c.XRange.TicSetting.Grid = chart.GridBlocks
c.YRange.TicSetting.Grid = chart.GridBlocks
dumper.Plot(&c)
}
//
// Full fletched scatter plots
//
func scatterChart() {
dumper := NewDumper("xscatter2", 1, 1, 800, 600)
defer dumper.Close()
pl := chart.ScatterChart{Title: "Scatter + Lines"}
pl.XRange.Label, pl.YRange.Label = "X - Value", "Y - Value"
pl.Key.Pos = "itl"
// pl.XRange.TicSetting.Delta = 5
pl.XRange.TicSetting.Grid = 1
x := []float64{-4, -3.3, -1.8, -1, 0.2, 0.8, 1.8, 3.1, 4, 5.3, 6, 7, 8, 9}
y := []float64{22, 18, -3, 0, 0.5, 2, 45, 12, 16.5, 24, 30, 55, 60, 70}
pl.AddDataPair("Data", x, y, chart.PlotStyleLinesPoints,
chart.Style{Symbol: '#', SymbolColor: color.NRGBA{0x00, 0x00, 0xff, 0xff}, LineStyle: chart.SolidLine})
last := len(pl.Data) - 1
pl.Data[last].Samples[6].DeltaX = 2.5
pl.Data[last].Samples[6].OffX = 0.5
pl.Data[last].Samples[6].DeltaY = 16
pl.Data[last].Samples[6].OffY = 2
pl.AddData("Points", []chart.EPoint{chart.EPoint{-4, 40, 0, 0, 0, 0}, chart.EPoint{-3, 45, 0, 0, 0, 0},
chart.EPoint{-2, 35, 0, 0, 0, 0}}, chart.PlotStylePoints,
chart.Style{Symbol: '0', SymbolColor: color.NRGBA{0xff, 0x00, 0xff, 0xff}})
pl.AddFunc("Theory", func(x float64) float64 {
if x > 5.25 && x < 5.75 {
return 75
}
if x > 7.25 && x < 7.75 {
return 500
}
return x * x
}, chart.PlotStyleLines,
chart.Style{Symbol: '%', LineWidth: 2, LineColor: color.NRGBA{0xa0, 0x00, 0x00, 0xff}, LineStyle: chart.DashDotDotLine})
pl.AddFunc("30", func(x float64) float64 { return 30 }, chart.PlotStyleLines,
chart.Style{Symbol: '+', LineWidth: 1, LineColor: color.NRGBA{0x00, 0xa0, 0x00, 0xff}, LineStyle: 1})
pl.AddFunc("", func(x float64) float64 { return 7 }, chart.PlotStyleLines,
chart.Style{Symbol: '@', LineWidth: 1, LineColor: color.NRGBA{0x00, 0x00, 0xa0, 0xff}, LineStyle: 1})
pl.XRange.ShowZero = true
pl.XRange.TicSetting.Mirror = 1
pl.YRange.TicSetting.Mirror = 1
pl.XRange.TicSetting.Grid = 1
pl.XRange.Label = "X-Range"
pl.YRange.Label = "Y-Range"
pl.Key.Cols = 2
pl.Key.Pos = "orb"
dumper.Plot(&pl)
}
//
// Function plots with fancy clippings
//
func functionPlots() {
dumper := NewDumper("xscatter3", 2, 1, 500, 400)
defer dumper.Close()
p := chart.ScatterChart{Title: "Functions"}
p.XRange.Label, p.YRange.Label = "X - Value", "Y - Value"
p.Key.Pos = "ibl"
p.XRange.MinMode.Fixed, p.XRange.MaxMode.Fixed = true, true
p.XRange.MinMode.Value, p.XRange.MaxMode.Value = -10, 10
p.YRange.MinMode.Fixed, p.YRange.MaxMode.Fixed = true, true
p.YRange.MinMode.Value, p.YRange.MaxMode.Value = -10, 10
p.XRange.TicSetting.Delta = 2
p.YRange.TicSetting.Delta = 5
p.XRange.TicSetting.Mirror = 1
p.YRange.TicSetting.Mirror = 1
p.AddFunc("i+n", func(x float64) float64 {
if x > -7 && x < -5 {
return math.Inf(-1)
} else if x > -1.5 && x < 1.5 {
return math.NaN()
} else if x > 5 && x < 7 {
return math.Inf(1)
}
return -0.75 * x
},
chart.PlotStyleLines, chart.Style{Symbol: 'o', LineWidth: 2, LineColor: color.NRGBA{0xa0, 0x00, 0x00, 0xff}, LineStyle: 1})
p.AddFunc("sin", func(x float64) float64 { return 13 * math.Sin(x) }, chart.PlotStyleLines,
chart.Style{Symbol: '#', LineWidth: 1, LineColor: color.NRGBA{0x00, 0x00, 0xa0, 0xff}, LineStyle: 1})
p.AddFunc("2x", func(x float64) float64 { return 2 * x }, chart.PlotStyleLines,
chart.Style{Symbol: 'X', LineWidth: 1, LineColor: color.NRGBA{0x00, 0xa0, 0x00, 0xff}, LineStyle: 1})
dumper.Plot(&p)
p = chart.ScatterChart{Title: "Functions"}
p.Key.Hide = true
p.XRange.MinMode.Fixed, p.XRange.MaxMode.Fixed = true, true
p.XRange.MinMode.Value, p.XRange.MaxMode.Value = -2, 2
p.YRange.MinMode.Fixed, p.YRange.MaxMode.Fixed = true, true
p.YRange.MinMode.Value, p.YRange.MaxMode.Value = -2, 2
p.XRange.TicSetting.Delta = 1
p.YRange.TicSetting.Delta = 1
p.XRange.TicSetting.Mirror = 1
p.YRange.TicSetting.Mirror = 1
p.NSamples = 5
p.AddFunc("10x", func(x float64) float64 { return 10 * x }, chart.PlotStyleLines,
chart.Style{Symbol: 'o', LineWidth: 2, LineColor: color.NRGBA{0x00, 0xa0, 0x00, 0xff}, LineStyle: 1})
dumper.Plot(&p)
}
//
// Autoscaling
//
func autoscale() {
dumper := NewDumper("xautoscale", 2, 2, 600, 400)
defer dumper.Close()
N := 200
points := make([]chart.EPoint, N)
for i := 0; i < N-1; i++ {
points[i].X = rand.Float64()*10000 - 5000 // Full range is [-5000:5000]
points[i].Y = rand.Float64()*10000 - 5000 // Full range is [-5000:5000]
points[i].DeltaX = rand.Float64() * 400
points[i].DeltaY = rand.Float64() * 400
}
points[N-1].X = -650
points[N-1].Y = -2150
points[N-1].DeltaX = 400
points[N-1].DeltaY = 400
points[N-1].OffX = 100
points[N-1].OffY = -150
s := chart.ScatterChart{Title: "Full Autoscaling"}
s.Key.Hide = true
s.XRange.TicSetting.Mirror = 1
s.YRange.TicSetting.Mirror = 1
s.AddData("Data", points, chart.PlotStylePoints, chart.Style{Symbol: 'o', SymbolColor: color.NRGBA{0x00, 0xee, 0x00, 0xff}})
dumper.Plot(&s)
s = chart.ScatterChart{Title: "Xmin: -1850, Xmax clipped to [500:900]"}
s.Key.Hide = true
s.XRange.TicSetting.Mirror = 1
s.YRange.TicSetting.Mirror = 1
s.XRange.MinMode.Fixed, s.XRange.MinMode.Value = true, -1850
s.XRange.MaxMode.Constrained = true
s.XRange.MaxMode.Lower, s.XRange.MaxMode.Upper = 500, 900
s.AddData("Data", points, chart.PlotStylePoints, chart.Style{Symbol: '0', SymbolColor: color.NRGBA{0xee, 0x00, 0x00, 0xff}})
dumper.Plot(&s)
s = chart.ScatterChart{Title: "Xmin: -1850, Ymax clipped to [9000:11000]"}
s.Key.Hide = true
s.XRange.TicSetting.Mirror = 1
s.YRange.TicSetting.Mirror = 1
s.XRange.MinMode.Fixed, s.XRange.MinMode.Value = true, -1850
s.YRange.MaxMode.Constrained = true
s.YRange.MaxMode.Lower, s.YRange.MaxMode.Upper = 9000, 11000
s.AddData("Data", points, chart.PlotStylePoints, chart.Style{Symbol: '0', SymbolColor: color.NRGBA{0x00, 0x00, 0xee, 0xff}})
dumper.Plot(&s)
s = chart.ScatterChart{Title: "Tiny fraction"}
s.Key.Hide = true
s.XRange.TicSetting.Mirror = 1
s.YRange.TicSetting.Mirror = 1
s.YRange.MinMode.Constrained = true
s.YRange.MinMode.Lower, s.YRange.MinMode.Upper = -2250, -2050
s.YRange.MaxMode.Constrained = true
s.YRange.MaxMode.Lower, s.YRange.MaxMode.Upper = -1950, -1700
s.XRange.MinMode.Constrained = true
s.XRange.MinMode.Lower, s.XRange.MinMode.Upper = -900, -800
s.XRange.MaxMode.Constrained = true
s.XRange.MaxMode.Lower, s.XRange.MaxMode.Upper = -850, -650
s.AddData("Data", points, chart.PlotStylePoints, chart.Style{Symbol: '0', SymbolColor: color.NRGBA{0xee, 0xcc, 0x00, 0xff}})
dumper.Plot(&s)
}
//
// Box Charts
//
func boxChart() {
dumper := NewDumper("xbox1", 2, 2, 400, 300)
defer dumper.Close()
p := chart.BoxChart{Title: "Box Chart"}
p.XRange.Label, p.YRange.Label = "Value", "Count"
for x := 10; x <= 50; x += 5 {
points := make([]float64, 70)
a := rand.Float64() * 10
v := rand.Float64()*5 + 2
for i := 0; i < len(points); i++ {
x := rand.NormFloat64()*v + a
points[i] = x
}
p.AddSet(float64(x), points, true)
}
p.NextDataSet("Sample B", chart.Style{Symbol: 'x', LineColor: color.NRGBA{0x00, 0xc0, 0x00, 0xff}, LineWidth: 1, LineStyle: chart.SolidLine})
for x := 12; x <= 50; x += 10 {
points := make([]float64, 60)
a := rand.Float64()*15 + 30
v := rand.Float64()*5 + 2
for i := 0; i < len(points); i++ {
x := rand.NormFloat64()*v + a
points[i] = x
}
p.AddSet(float64(x), points, true)
}
dumper.Plot(&p)
p = chart.BoxChart{Title: "Categorical Box Chart"}
p.XRange.Label, p.YRange.Label = "Population", "Count"
p.XRange.Fixed(-1, 3, 1)
p.XRange.Category = []string{"Rural", "Urban", "Island"}
p.NextDataSet("", chart.Style{Symbol: '%', LineColor: color.NRGBA{0x00, 0x00, 0xcc, 0xff}, LineWidth: 1, LineStyle: chart.SolidLine})
p.AddSet(0, bigauss(100, 0, 5, 10, 0, 0, 0, 50), true)
p.AddSet(1, bigauss(100, 25, 5, 5, 2, 25, 0, 50), true)
p.AddSet(2, bigauss(50, 50, 4, 8, 4, 16, 0, 50), true)
dumper.Plot(&p)
}
// gaussian distribution with n samples, stddev of s, offset of a, forced to [l,u]
func gauss(n int, s, a, l, u float64) []float64 {
// Make output of gauss deterministic by seeding with a fixed value.
rand.Seed(12345)
points := make([]float64, n)
for i := 0; i < len(points); i++ {
x := rand.NormFloat64()*s + a
if x < l {
x = l
} else if x > u {
x = u
}
points[i] = x
}
return points
}
// bigaussian distribution with n samples, stddev of s, offset of a, clipped to [l,u]
func bigauss(n1, n2 int, s1, a1, s2, a2, l, u float64) []float64 {
points := make([]float64, n1+n2)
for i := 0; i < n1; i++ {
x := rand.NormFloat64()*s1 + a1
for x < l || x > u {
x = rand.NormFloat64()*s1 + a1
}
points[i] = x
}
for i := n1; i < n1+n2; i++ {
x := rand.NormFloat64()*s2 + a2
for x < l || x > u {
x = rand.NormFloat64()*s2 + a2
}
points[i] = x
}
return points
}
func kernels() {
dumper := NewDumper("xkernels", 1, 1, 600, 400)
defer dumper.Close()
p := chart.ScatterChart{Title: "Kernels"}
p.XRange.Label, p.YRange.Label = "u", "K(u)"
p.XRange.MinMode.Fixed, p.XRange.MaxMode.Fixed = true, true
p.XRange.MinMode.Value, p.XRange.MaxMode.Value = -2, 2
p.YRange.MinMode.Fixed, p.YRange.MaxMode.Fixed = true, true
p.YRange.MinMode.Value, p.YRange.MaxMode.Value = -0.1, 1.1
p.XRange.TicSetting.Delta = 1
p.YRange.TicSetting.Delta = 0.2
p.XRange.TicSetting.Mirror = 1
p.YRange.TicSetting.Mirror = 1
p.AddFunc("Bisquare", chart.BisquareKernel,
chart.PlotStyleLines, chart.Style{Symbol: 'o', LineWidth: 1, LineColor: color.NRGBA{0xa0, 0x00, 0x00, 0xff}, LineStyle: 1})
p.AddFunc("Epanechnikov", chart.EpanechnikovKernel,
chart.PlotStyleLines, chart.Style{Symbol: 'X', LineWidth: 1, LineColor: color.NRGBA{0x00, 0xa0, 0x00, 0xff}, LineStyle: 1})
p.AddFunc("Rectangular", chart.RectangularKernel,
chart.PlotStyleLines, chart.Style{Symbol: '=', LineWidth: 1, LineColor: color.NRGBA{0x00, 0x00, 0xa0, 0xff}, LineStyle: 1})
p.AddFunc("Gauss", chart.GaussKernel,
chart.PlotStyleLines, chart.Style{Symbol: '*', LineWidth: 1, LineColor: color.NRGBA{0xa0, 0x00, 0xa0, 0xff}, LineStyle: 1})
dumper.Plot(&p)
}
//
// Histograms Charts
//
func histChart(name, title string, stacked, counts, shifted bool) {
dumper := NewDumper("xhist", 2, 2, 400, 300)
defer dumper.Close()
hc := chart.HistChart{Title: title, Stacked: stacked, Counts: counts, Shifted: shifted}
hc.XRange.Label = "Sample Value"
if counts {
hc.YRange.Label = "Total Count"
} else {
hc.YRange.Label = "Rel. Frequency [%]"
}
hc.Key.Hide = true
points := gauss(150, 10, 20, 0, 50)
hc.AddData("Sample 1", points,
chart.Style{ /*LineColor: color.NRGBA{0xff,0x00,0x00,0xff}, LineWidth: 1, LineStyle: 1, FillColor: color.NRGBA{0xff,0x80,0x80,0xff}*/ })
hc.Kernel = chart.BisquareKernel // chart.GaussKernel // chart.EpanechnikovKernel // chart.RectangularKernel // chart.BisquareKernel
dumper.Plot(&hc)
points2 := gauss(80, 4, 37, 0, 50)
// hc.Kernel = nil
hc.AddData("Sample 2", points2,
chart.Style{ /*LineColor: color.NRGBA{0x00,0xff,0x00,0xff}, LineWidth: 1, LineStyle: 1, FillColor: color.NRGBA{0x80,0xff,0x80,0xff}*/ })
hc.YRange.TicSetting.Delta = 0
dumper.Plot(&hc)
points3 := gauss(60, 15, 0, 0, 50)
hc.AddData("Sample 3", points3,
chart.Style{ /*LineColor: color.NRGBA{0x00,0x00,0xff,0xff}, LineWidth: 1, LineStyle: 1, FillColor: color.NRGBA{0x80,0x80,0xff,0xff}*/ })
hc.YRange.TicSetting.Delta = 0
dumper.Plot(&hc)
points4 := gauss(40, 30, 15, 0, 50)
hc.AddData("Sample 4", points4, chart.Style{ /*LineColor: color.NRGBA{0x00,0x00,0x00,0xff}, LineWidth: 1, LineStyle: 1*/ })
hc.Kernel = nil
hc.YRange.TicSetting.Delta = 0
dumper.Plot(&hc)
}
//
// Bar Charts
//
func barChart() {
dumper := NewDumper("xbar1", 3, 2, 400, 300)
defer dumper.Close()
red := chart.Style{Symbol: 'o', LineColor: color.NRGBA{0xcc, 0x00, 0x00, 0xff},
FillColor: color.NRGBA{0xff, 0x80, 0x80, 0xff},
LineStyle: chart.SolidLine, LineWidth: 2}
green := chart.Style{Symbol: '#', LineColor: color.NRGBA{0x00, 0xcc, 0x00, 0xff},
FillColor: color.NRGBA{0x80, 0xff, 0x80, 0xff},
LineStyle: chart.SolidLine, LineWidth: 2}
barc := chart.BarChart{Title: "Simple Bar Chart"}
barc.Key.Hide = true
barc.XRange.ShowZero = true
barc.AddDataPair("Amount",
[]float64{-10, 10, 20, 30, 35, 40, 50},
[]float64{90, 120, 180, 205, 230, 150, 190}, red)
dumper.Plot(&barc)
barc.XRange.TicSetting.Delta = 0
barc = chart.BarChart{Title: "Simple Bar Chart"}
barc.Key.Hide = true
barc.XRange.ShowZero = true
barc.AddDataPair("Test", []float64{-5, 15, 25, 35, 45, 55}, []float64{110, 80, 95, 80, 120, 140}, green)
dumper.Plot(&barc)
barc.XRange.TicSetting.Delta = 0
barc.YRange.TicSetting.Delta = 0
barc.Title = "Combined (ugly as bar positions do not match)"
barc.AddDataPair("Amount", []float64{-10, 10, 20, 30, 35, 40, 50}, []float64{90, 120, 180, 205, 230, 150, 190}, red)
dumper.Plot(&barc)
barc.Title = "Stacked (still ugly)"
barc.Stacked = true
dumper.Plot(&barc)
barc = chart.BarChart{Title: "Nicely Stacked"}
barc.Key.Hide = true
barc.XRange.Fixed(0, 60, 10)
barc.AddDataPair("A", []float64{10, 30, 40, 50}, []float64{110, 95, 60, 120}, red)
barc.AddDataPair("B", []float64{10, 30, 40, 50}, []float64{40, 130, 15, 100}, green)
dumper.Plot(&barc)
barc.Stacked = true
dumper.Plot(&barc)
}
//
// Categorical Bar Charts
//
func categoricalBarChart() {
dumper := NewDumper("xbar2", 3, 2, 400, 300)
defer dumper.Close()
x := []float64{0, 1, 2, 3}
europe := []float64{10, 15, 25, 20}
asia := []float64{15, 30, 10, 20}
africa := []float64{20, 5, 5, 5}
blue := chart.Style{Symbol: '#', LineColor: color.NRGBA{0x00, 0x00, 0xff, 0xff}, LineWidth: 4, FillColor: color.NRGBA{0x40, 0x40, 0xff, 0xff}}
green := chart.Style{Symbol: 'x', LineColor: color.NRGBA{0x00, 0xaa, 0x00, 0xff}, LineWidth: 4, FillColor: color.NRGBA{0x40, 0xff, 0x40, 0xff}}
pink := chart.Style{Symbol: '0', LineColor: color.NRGBA{0x99, 0x00, 0x99, 0xff}, LineWidth: 4, FillColor: color.NRGBA{0xaa, 0x60, 0xaa, 0xff}}
red := chart.Style{Symbol: '%', LineColor: color.NRGBA{0xcc, 0x00, 0x00, 0xff}, LineWidth: 4, FillColor: color.NRGBA{0xff, 0x40, 0x40, 0xff}}
// Categorized Bar Chart
c := chart.BarChart{Title: "Income"}
c.XRange.Category = []string{"none", "low", "average", "high"}
// Unstacked, different labelings
c.ShowVal = 1
c.AddDataPair("Europe", x, europe, blue)
dumper.Plot(&c)
c.ShowVal = 2
c.AddDataPair("Asia", x, asia, pink)
dumper.Plot(&c)
c.ShowVal = 3
c.AddDataPair("Africa", x, africa, green)
dumper.Plot(&c)
// Stacked with different labelings
c.Stacked = true
c.ShowVal = 1
dumper.Plot(&c)
c.ShowVal = 2
dumper.Plot(&c)
c.ShowVal = 3
dumper.Plot(&c)
// Including negative ones
dumper2 := NewDumper("xbar3", 3, 2, 400, 300)
defer dumper2.Close()
c = chart.BarChart{Title: "Income"}
c.XRange.Category = []string{"none", "low", "average", "high"}
c.Key.Hide = true
c.YRange.ShowZero = true
c.ShowVal = 3
c.AddDataPair("Europe", x, []float64{-10, -15, -20, -5}, blue)
dumper2.Plot(&c)
c.AddDataPair("Asia", x, []float64{-15, -10, -5, -20}, pink)
dumper2.Plot(&c)
c.Stacked = true
dumper2.Plot(&c)
// Mixed
c = chart.BarChart{Title: "Income"}
c.XRange.Category = []string{"none", "low", "average", "high"}
c.Key.Hide = true
c.YRange.ShowZero = true
c.ShowVal = 3
c.AddDataPair("Europe", x, []float64{-10, 15, -20, 5}, blue)
dumper2.Plot(&c)
c.AddDataPair("Asia", x, []float64{-15, 10, -5, 20}, pink)
dumper2.Plot(&c)
c.Stacked = true
dumper2.Plot(&c)
// Very Mixed
c = chart.BarChart{Title: "Income"}
c.XRange.Category = []string{"none", "low", "average", "high"}
c.Key.Hide = true
c.YRange.ShowZero = true
c.ShowVal = 3
c.AddDataPair("Europe", x, []float64{-10, 15, -20, 5}, blue)
c.AddDataPair("Asia", x, []float64{-15, 10, 5, 20}, pink)
c.AddDataPair("Africa", x, []float64{10, -10, 15, -5}, green)
dumper2.Plot(&c)
c.Stacked = true
dumper2.Plot(&c)
c.AddDataPair("America", x, []float64{15, -5, -10, -20}, red)
c.YRange.TicSetting.Delta = 0
dumper2.Plot(&c)
}
//
// Logarithmic axes
//
func logAxis() {
dumper := NewDumper("xlog1", 2, 2, 400, 300)
defer dumper.Close()
lc := chart.ScatterChart{}
lc.XRange.Label, lc.YRange.Label = "X-Value", "Y-Value"
lx := []float64{4e-2, 3e-1, 2e0, 1e1, 8e1, 7e2, 5e3}
ly := []float64{10, 30, 90, 270, 3 * 270, 9 * 270, 27 * 270}
lc.AddDataPair("Measurement", lx, ly, chart.PlotStylePoints,
chart.Style{Symbol: '#', SymbolColor: color.NRGBA{0x99, 0x66, 0xff, 0xff}, SymbolSize: 1.5})
lc.Key.Hide = true
lc.XRange.MinMode.Expand, lc.XRange.MaxMode.Expand = chart.ExpandToTic, chart.ExpandToTic
lc.YRange.MinMode.Expand, lc.YRange.MaxMode.Expand = chart.ExpandToTic, chart.ExpandToTic
lc.Title = "Lin / Lin"
lc.XRange.Min, lc.XRange.Max = 0, 0
lc.YRange.Min, lc.YRange.Max = 0, 0
dumper.Plot(&lc)
lc.Title = "Lin / Log"
lc.XRange.Log, lc.YRange.Log = false, true
lc.XRange.Min, lc.XRange.Max, lc.XRange.TicSetting.Delta = 0, 0, 0
lc.YRange.Min, lc.YRange.Max, lc.YRange.TicSetting.Delta = 0, 0, 0
dumper.Plot(&lc)
lc.Title = "Log / Lin"
lc.XRange.Log, lc.YRange.Log = true, false
lc.XRange.Min, lc.XRange.Max, lc.XRange.TicSetting.Delta = 0, 0, 0
lc.YRange.Min, lc.YRange.Max, lc.YRange.TicSetting.Delta = 0, 0, 0
dumper.Plot(&lc)
lc.Title = "Log / Log"
lc.XRange.Log, lc.YRange.Log = true, true
lc.XRange.Min, lc.XRange.Max, lc.XRange.TicSetting.Delta = 0, 0, 0
lc.YRange.Min, lc.YRange.Max, lc.YRange.TicSetting.Delta = 0, 0, 0
dumper.Plot(&lc)
}
//
// Pie Charts
//
func pieChart() {
dumper := NewDumper("xpie1", 2, 2, 500, 250)
defer dumper.Close()
pc := chart.PieChart{Title: "Some Pies"}
pc.AddDataPair("Data1", []string{"2009", "2010", "2011"}, []float64{10, 20, 30})
pc.Inner = 0.75
dumper.Plot(&pc)
piec := chart.PieChart{Title: "Some Pies"}
piec.AddIntDataPair("Europe",
[]string{"D", "AT", "CH", "F", "E", "I"},
[]int{10, 20, 30, 35, 15, 25})
piec.Data[0].Samples[3].Flag = true
dumper.Plot(&piec)
piec.Inner = 0.5
piec.FmtVal = chart.AbsoluteValue
dumper.Plot(&piec)
piec.Inner = 0.65
piec.Key.Cols = 2
piec.FmtVal = chart.PercentValue
chart.PieChartShrinkage = 0.45
dumper.Plot(&piec)
dumper2 := NewDumper("xpie2", 2, 1, 500, 400)
defer dumper2.Close()
pie := chart.PieChart{Title: "Some Pies"}
data := []chart.CatValue{{"D", 10, false}, {"GB", 20, true}, {"CH", 30, false}, {"F", 60, false}}
lw := 4
red := chart.Style{LineColor: color.NRGBA{0xcc, 0x00, 0x00, 0xff}, FillColor: color.NRGBA{0xff, 0x80, 0x80, 0xff},
LineStyle: chart.SolidLine, LineWidth: lw}
green := chart.Style{LineColor: color.NRGBA{0x00, 0xcc, 0x00, 0xff}, FillColor: color.NRGBA{0x80, 0xff, 0x80, 0xff},
LineStyle: chart.SolidLine, LineWidth: lw}
blue := chart.Style{LineColor: color.NRGBA{0x00, 0x00, 0xcc, 0xff}, LineWidth: lw, LineStyle: chart.SolidLine, FillColor: color.NRGBA{0x80, 0x80, 0xff, 0xff}}
pink := chart.Style{LineColor: color.NRGBA{0x99, 0x00, 0x99, 0xff}, LineWidth: lw, LineStyle: chart.SolidLine, FillColor: color.NRGBA{0xaa, 0x60, 0xaa, 0xff}}
styles := []chart.Style{red, green, blue, pink}
pie.FmtKey = chart.IntegerValue
pie.AddData("Data1", data, styles)
pie.Inner = 0
pie.Key.Cols = 2
pie.Key.Pos = "ibr"
dumper2.Plot(&pie)
pie = chart.PieChart{Title: "Some Rings"}
data2 := []chart.CatValue{{"D", 15, false}, {"GB", 25, false}, {"CH", 30, false}, {"F", 50, false}}
data[1].Flag = false
lw = 2
lightred := chart.Style{LineColor: color.NRGBA{0xcc, 0x40, 0x40, 0xff}, FillColor: color.NRGBA{0xff, 0xc0, 0xc0, 0xff},
LineStyle: chart.SolidLine, LineWidth: lw}
lightgreen := chart.Style{LineColor: color.NRGBA{0x40, 0xcc, 0x40, 0xff}, FillColor: color.NRGBA{0xc0, 0xff, 0xc0, 0xff},
LineStyle: chart.SolidLine, LineWidth: lw}
lightblue := chart.Style{LineColor: color.NRGBA{0x40, 0x40, 0xcc, 0xff}, FillColor: color.NRGBA{0xc0, 0xc0, 0xff, 0xff},
LineWidth: lw, LineStyle: chart.SolidLine}
lightpink := chart.Style{LineColor: color.NRGBA{0xaa, 0x00, 0xaa, 0xff}, FillColor: color.NRGBA{0xff, 0x80, 0xff, 0xff},
LineWidth: lw, LineStyle: chart.SolidLine}
lightstyles := []chart.Style{lightred, lightgreen, lightblue, lightpink}
pie.Inner = 0.3
pie.Key.Cols = 2
pie.Key.Pos = "ibr"
pie.FmtVal = chart.PercentValue
chart.PieChartShrinkage = 0.55
pie.FmtKey = chart.IntegerValue
pie.AddData("1980", data, styles)
pie.AddData("2010", data2, lightstyles)
dumper2.Plot(&pie)
}
func textlen() {
s2f, _ := os.Create("text.svg")
mysvg := svg.New(s2f)
mysvg.Start(1600, 800)
mysvg.Title("My Plot")
mysvg.Rect(0, 0, 2000, 800, "fill: #ffffff")
sgr := svgg.New(mysvg, 2000, 800, "Arial", 18, Background)
sgr.Begin()
texts := []string{"ill", "WWW", "Some normal text.", "Illi, is. illigalli: ill!", "OO WORKSHOOPS OMWWW BMWWMB"}
fonts := []string{"Arial", "Helvetica", "Times", "Courier" /* "Calibri", "Palatino" */}
sizes := []chart.FontSize{chart.TinyFontSize, chart.SmallFontSize, chart.NormalFontSize, chart.LargeFontSize, chart.HugeFontSize}
font := chart.Font{Color: color.NRGBA{0x00, 0x00, 0x00, 0xff}}
df := chart.Font{Name: "Arial", Color: color.NRGBA{0x20, 0x20, 0xff, 0xff}, Size: -3}
x, y := 20, 40
for _, t := range texts {
for _, f := range fonts {
for _, s := range sizes {
font.Name, font.Size = f, s
tvl := sgr.TextLen(t, font)
sgr.Text(x+tvl/2, y-2, t, "cc", 0, font)
sgr.Line(x, y, x+tvl, y, chart.Style{LineColor: color.NRGBA{0xff, 0x00, 0x00, 0xff}, LineWidth: 2, LineStyle: chart.SolidLine})
r := fmt.Sprintf("%s (%d)", f, s)
sgr.Text(x+tvl+10, y-2, r, "cl", 0, df)
y += 30
if y > 760 {
y = 40
x += 300
}
}
}
}
sgr.End()
mysvg.End()
s2f.Close()
}
//
// Test of graphic primitives
//
func testGraphics() {
dumper := NewDumper("xgraphics", 1, 1, 900, 416)
defer dumper.Close()
igr := imgg.AddTo(dumper.I, 0, 0, 900, 416, color.RGBA{0xff, 0xff, 0xff, 0xff}, nil, nil)
sgr := svgg.AddTo(dumper.S, 0, 0, 900, 416, "", 14, color.RGBA{0xff, 0xff, 0xff, 0xff})
style := chart.Style{LineWidth: 0, LineColor: color.NRGBA{0x00, 0x00, 0x00, 0xff}, LineStyle: chart.SolidLine}
// Line Width
x0, y0 := 10, 10
for w := 1; w <= 10; w++ {
style.LineWidth = w
igr.Line(x0, y0, x0+160, y0, style)
sgr.Line(x0, y0, x0+160, y0, style)
y0 += w + 5
}
// Line Color
style = chart.Style{LineWidth: 19, LineColor: color.NRGBA{0x80, 0x80, 0x80, 0xff}, LineStyle: chart.SolidLine}
igr.Line(x0+40, y0-5, x0+40, y0+174, style)
sgr.Line(x0+40, y0-5, x0+40, y0+174, style)
igr.Line(x0+80, y0-5, x0+80, y0+174, style)
sgr.Line(x0+80, y0-5, x0+80, y0+174, style)
igr.Line(x0+120, y0-5, x0+120, y0+174, style)
sgr.Line(x0+120, y0-5, x0+120, y0+174, style)
style = chart.Style{LineWidth: 5, LineStyle: chart.SolidLine}
for _, col := range []color.NRGBA{
color.NRGBA{0x00, 0x00, 0x00, 0xff}, color.NRGBA{0xff, 0x00, 0x00, 0xff},
color.NRGBA{0x00, 0xff, 0x00, 0xff}, color.NRGBA{0x00, 0x00, 0xff, 0xff},
color.NRGBA{0xff, 0xff, 0x00, 0xff}, color.NRGBA{0xff, 0x00, 0xff, 0xff},
color.NRGBA{0x00, 0xff, 0xff, 0xff},
color.NRGBA{0x3f, 0x3f, 0x3f, 0xff}, color.NRGBA{0x7f, 0x7f, 0x7f, 0xff},
color.NRGBA{0xbf, 0xbf, 0xbf, 0xff}, color.NRGBA{0xff, 0xff, 0xff, 0xff},
color.NRGBA{0xcc, 0x00, 0x00, 0xff}, color.NRGBA{0x00, 0xbb, 0x00, 0xff},
color.NRGBA{0x00, 0x00, 0xdd, 0xff}, color.NRGBA{0x99, 0x66, 0x00, 0xff},
color.NRGBA{0xbb, 0x00, 0xbb, 0xff}, color.NRGBA{0x00, 0xaa, 0xaa, 0xff},
color.NRGBA{0xaa, 0xaa, 0x00, 0xff},
} {
d := 0
for _, a := range []uint8{0xff, 0xc0, 0x80, 0x40, 0x00} {
c := col
c.A = a
style.LineColor = c
igr.Line(x0+d, y0, x0+d+40, y0, style)
sgr.Line(x0+d, y0, x0+d+40, y0, style)
d += 40
}
y0 += 10
}
// Line Style
style.LineColor = color.NRGBA{0x00, 0x00, 0x00, 0xff}
style.LineWidth = 1
for _, st := range []chart.LineStyle{
chart.SolidLine, chart.DashedLine, chart.DottedLine, chart.DashDotDotLine,
chart.LongDashLine, chart.LongDotLine,
} {
style.LineStyle = st
igr.Line(x0, y0, x0+160, y0, style)
sgr.Line(x0, y0, x0+160, y0, style)
y0 += 5
}
style.LineWidth = 9
y0 += 10
for _, st := range []chart.LineStyle{
chart.SolidLine, chart.DashedLine, chart.DottedLine, chart.DashDotDotLine,
chart.LongDashLine, chart.LongDotLine,
} {
style.LineStyle = st
igr.Line(x0, y0, x0+160, y0, style)
sgr.Line(x0, y0, x0+160, y0, style)
y0 += 12
}
// Text Alignment
font := chart.Font{}
rx, ry := 180, 10
px, py := 450, 90
text := "(JgbXÄj)"
alignedText(igr, text, font, rx, ry, px, py, 0, 0)
alignedText(sgr, text, font, rx, ry, px, py, 0, 0)
font.Size = chart.HugeFontSize
rx, ry = 180, 100
px, py = 450, 180
alignedText(igr, text, font, rx, ry, px, py, 0, 0)
alignedText(sgr, text, font, rx, ry, px, py, 0, 0)
font.Size = chart.TinyFontSize
rx, ry = 180, 190
px, py = 450, 270
alignedText(igr, text, font, rx, ry, px, py, 0, 0)
alignedText(sgr, text, font, rx, ry, px, py, 0, 0)
// Rectangles
x0, y0 = 180, 285
dx, dy := 40, 30
w, h := 30, 20
n, m := 7, 4
// background cross
style = chart.Style{LineWidth: 19, LineColor: color.NRGBA{0x80, 0x80, 0x80, 0xff}, LineStyle: chart.SolidLine}
igr.Line(x0, y0+2, x0+(n-1)*dx+w, y0+(m-1)*dy+h-2, style)
sgr.Line(x0, y0+2, x0+(n-1)*dx+w, y0+(m-1)*dy+h-2, style)
style = chart.Style{LineWidth: 19, LineColor: color.NRGBA{0x0, 0xd0, 0x0, 0xff}, LineStyle: chart.SolidLine}
igr.Line(x0, y0+(m-1)*dy+h-2, x0+(n-1)*dx+w, y0+2, style)
sgr.Line(x0, y0+(m-1)*dy+h-2, x0+(n-1)*dx+w, y0+2, style)
for i := 1; i <= n*m; i++ {
alpha := uint8(i * 256 / (n*m + 1))
style := chart.Style{LineWidth: 3, LineColor: color.NRGBA{0xc0, 0x0, 0x0, alpha},
LineStyle: chart.SolidLine, FillColor: color.NRGBA{0x0, 0x0, 0xc0, 0xff - alpha}}
igr.Rect(x0, y0, w, h, style)
sgr.Rect(x0, y0, w, h, style)
if i%n == 0 {
x0 = 180
y0 += dy
} else {
x0 += dx
}
}
// Symbols
scols := []color.NRGBA{{0, 0, 0, 0xff}, {0xc0, 0x00, 0x00, 0xff}, {0x00, 0xc0, 0x00, 0xff},
{0x00, 0x00, 0xc0, 0xff}, {0x80, 0x80, 0x80, 0xff}}
dx, dy = 30, 27