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work on svg generation
This commit is contained in:
2
.gitignore
vendored
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2
.gitignore
vendored
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*.svg
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gitgraph
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18
go.mod
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18
go.mod
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module github.com/taigrr/gitgraph
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go 1.18
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replace github.com/taigrr/go-colorpallettes => ../go-colorpallettes
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require (
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github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b
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github.com/srwiley/oksvg v0.0.0-20220128195007-1f435e4c2b44
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github.com/srwiley/rasterx v0.0.0-20220615024203-67b7089efd25
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github.com/taigrr/go-colorpallettes v0.0.0-00010101000000-000000000000
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)
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require (
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golang.org/x/image v0.0.0-20211028202545-6944b10bf410 // indirect
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golang.org/x/net v0.0.0-20211118161319-6a13c67c3ce4 // indirect
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golang.org/x/text v0.3.6 // indirect
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)
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39
go.sum
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39
go.sum
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github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
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github.com/ajstarks/deck v0.0.0-20200831202436-30c9fc6549a9/go.mod h1:JynElWSGnm/4RlzPXRlREEwqTHAN3T56Bv2ITsFT3gY=
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github.com/ajstarks/deck/generate v0.0.0-20210309230005-c3f852c02e19/go.mod h1:T13YZdzov6OU0A1+RfKZiZN9ca6VeKdBdyDV+BY97Tk=
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github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b h1:slYM766cy2nI3BwyRiyQj/Ud48djTMtMebDqepE95rw=
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github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b/go.mod h1:1KcenG0jGWcpt8ov532z81sp/kMMUG485J2InIOyADM=
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github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
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github.com/srwiley/oksvg v0.0.0-20220128195007-1f435e4c2b44 h1:XPYXKIuH/n5zpUoEWk2jWV/SjEMNYmqDYmTgbjmhtaI=
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github.com/srwiley/oksvg v0.0.0-20220128195007-1f435e4c2b44/go.mod h1:cNQ3dwVJtS5Hmnjxy6AgTPd0Inb3pW05ftPSX7NZO7Q=
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github.com/srwiley/rasterx v0.0.0-20220615024203-67b7089efd25 h1:uyi1c8AxAw2b9MTr639iqz45FMFb4dDR7rB++NaVooo=
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github.com/srwiley/rasterx v0.0.0-20220615024203-67b7089efd25/go.mod h1:nXTWP6+gD5+LUJ8krVhhoeHjvHTutPxMYl5SvkcnJNE=
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github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/image v0.0.0-20211028202545-6944b10bf410 h1:hTftEOvwiOq2+O8k2D5/Q7COC7k5Qcrgc2TFURJYnvQ=
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golang.org/x/image v0.0.0-20211028202545-6944b10bf410/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
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golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
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golang.org/x/net v0.0.0-20211118161319-6a13c67c3ce4 h1:DZshvxDdVoeKIbudAdFEKi+f70l51luSy/7b76ibTY0=
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golang.org/x/net v0.0.0-20211118161319-6a13c67c3ce4/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
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golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
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golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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honnef.co/go/tools v0.1.3/go.mod h1:NgwopIslSNH47DimFoV78dnkksY2EFtX0ajyb3K/las=
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116
graph/graph.go
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116
graph/graph.go
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package graph
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import (
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"bufio"
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"bytes"
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"fmt"
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"image"
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"image/color"
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"image/png"
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"os"
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"sync"
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svg "github.com/ajstarks/svgo"
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"github.com/srwiley/oksvg"
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"github.com/srwiley/rasterx"
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sc "github.com/taigrr/go-colorpallettes/simplecolor"
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)
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var colorsLoaded sync.Once
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var colorScheme []sc.SimpleColor
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func CreateGraph() bytes.Buffer {
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var x bytes.Buffer
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return x
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}
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func init() {
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colors := []string{"#767960", "#a7297f", "#e8ca89", "#f5efd6", "#858966"}
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for _, c := range colors {
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color := sc.FromHexString(c)
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_ = c
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colorScheme = append(colorScheme, color)
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}
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}
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func SetColorScheme(c []color.Color) {
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for _, c := range c {
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colorScheme = append(colorScheme, sc.FromRGBA(c.RGBA()))
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}
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}
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func ColorForFrequency(freq, min, max int) color.Color {
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spread := max - min
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interval := float64(spread) / float64(len(colorScheme))
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colorIndex := 0
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for i := float64(min); i < float64(freq); i += float64(interval) {
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colorIndex++
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}
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if colorIndex > len(colorScheme)-1 {
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colorIndex = len(colorScheme) - 1
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}
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return colorScheme[colorIndex]
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}
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func GetImage(frequencies []int) bytes.Buffer {
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squareColors := []color.Color{}
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min, max := minmax(frequencies)
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for _, f := range frequencies {
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squareColors = append(squareColors, ColorForFrequency(f, min, max))
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}
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return drawImage(squareColors)
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}
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func svgToPng() {
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w, h := 512, 512
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in, err := os.Open("in.svg")
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if err != nil {
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panic(err)
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}
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defer in.Close()
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icon, _ := oksvg.ReadIconStream(in)
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icon.SetTarget(0, 0, float64(w), float64(h))
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rgba := image.NewRGBA(image.Rect(0, 0, w, h))
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icon.Draw(rasterx.NewDasher(w, h, rasterx.NewScannerGV(w, h, rgba, rgba.Bounds())), 1)
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out, err := os.Create("out.png")
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if err != nil {
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panic(err)
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}
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defer out.Close()
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err = png.Encode(out, rgba)
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if err != nil {
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panic(err)
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}
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}
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func drawImage(c []sc.SimpleColor) bytes.Buffer {
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//TODO here, draw suqares in appropriate colors, hopefully as an svg
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var sb bytes.Buffer
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sbw := bufio.NewWriter(&sb)
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width := 500
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height := 500
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canvas := svg.New(sbw)
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canvas.Start(width, height)
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canvas.Square(width/20, height/300, width/10, fmt.Sprintf("fill:%s", colorScheme[0].HexString()))
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canvas.Circle(width/2, height/2, 100)
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canvas.Text(width/2, height/2, "Hello, SVG", "text-anchor:middle;font-size:30px;fill:white")
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canvas.End()
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sbw.Flush()
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return sb
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}
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func minmax(f []int) (int, int) {
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min, max := 0, 0
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for _, x := range f {
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if x < min {
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min = x
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} else if x > max {
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max = x
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}
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}
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return min, max
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}
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21
main.go
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21
main.go
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package main
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import (
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"fmt"
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"os"
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"github.com/taigrr/gitgraph/graph"
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)
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type DayCount [366]int
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func main() {
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svg := graph.GetImage([]int{1, 2, 5, 6, 5, 4, 5, 8, 7, 43, 2, 3})
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f, err := os.Create("out.svg")
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if err != nil {
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fmt.Printf("Error: %v\n", err)
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return
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}
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defer f.Close()
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svg.WriteTo(f)
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}
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Reference in New Issue
Block a user