byjp.me
A tool for archiving & converting scans of postcards, and information about them.
feat: unpolished svg web format (no decode)
+2
-2
TODO.md
+2
-2
TODO.md
···
1
1
# TODO
2
2
3
-
- [ ] JPEGli in SVG with mask smaller than WebP?
3
+
- [ ] Coregistration of front and back (slight rotation & translation differences)
4
+
- [x] JPEGli in SVG with mask smaller than PNG?
4
5
- [ ] Improve HasTransparency detection (for all format decoding)
5
6
- [ ] Move component/decode.go#decodeImage to internal/images/decode.go?
6
7
- [ ] Fix XMP inject/extract tests
···
11
12
- [ ] Store number of sides in the Metadata
12
13
- [ ] Validate the number of sides in the metadata with the number of images provided
13
14
- [ ] Allow conversion of postcard files on PostOffice
14
-
- [ ] Coregistration of front and back (slight rotation & translation differences)
15
15
- [ ] Allow uploading/choice of SVGs for the back side, to make a "blank" postcard
16
16
- [ ] Responsive layout for the back — in physical units
17
17
- [ ] Rendering SVG inside go/wasm
+3
-1
formats.go
+3
-1
formats.go
···
21
21
var codecs = map[string]formats.Codec{
22
22
"component": component.Codec(),
23
23
"web": web.DefaultCodec,
24
+
"svg": web.SVGCodec,
24
25
"usd": usd.Codec(),
25
26
"usdz": usdz.Codec(),
26
27
"json": metadata.Codec(metadata.AsJSON),
···
28
29
"xmp": xmp.Codec(),
29
30
}
30
31
31
-
var Codecs = []string{"component", "web", "usdz", "usd", "json", "yaml", "xmp"}
32
+
// Used for ordering
33
+
var Codecs = []string{"component", "web", "svg", "usdz", "usd", "json", "yaml", "xmp"}
32
34
33
35
// These 'formats' will trigger the IncludeSupportFiles encoder option instead of a different codec
34
36
var supportFiles = []string{"css", "html"}
+1
-1
formats/usd/codec.go
+1
-1
formats/usd/codec.go
···
159
159
maxX, maxY := pc.Meta.Physical.FrontDimensions.MustPhysical()
160
160
161
161
// TODO: Coregister front & back?
162
-
// TODO: Handle no back
163
162
164
163
frontPoints, err := images.Outline(pc.Front, false, true)
165
164
if err != nil {
···
167
166
}
168
167
fTris := geom3d.Triangulate(frontPoints)
169
168
169
+
// TODO: Handle no back
170
170
backPoints, err := images.Outline(pc.Back, true, true)
171
171
if err != nil {
172
172
return fmt.Errorf("back image can't be outlined: %w", err)
+2
formats/web/codec.go
+2
formats/web/codec.go
···
57
57
"jpeg": {},
58
58
"webp": {lossless: true, transparency: true},
59
59
"png": {lossless: true, transparency: true},
60
+
"svg": {transparency: true},
60
61
}
61
62
62
63
// Only returns true if the capabilities on struct owning this method meet the needs of the provided capabilities object.
···
78
79
}
79
80
80
81
var DefaultCodec, _ = Codec("jpeg", "webp")
82
+
var SVGCodec, _ = Codec("svg")
81
83
82
84
func (c codec) Name() string { return codecName }
+2
formats/web/encode.go
+2
formats/web/encode.go
···
90
90
err = images.WritePNG(w, combinedImg, xmpData, opts.Archival)
91
91
case "jpeg":
92
92
err = images.WriteJPEG(w, combinedImg, xmpData)
93
+
case "svg":
94
+
err = writeSVG(w, pc, combinedImg, xmpData)
93
95
default:
94
96
err = fmt.Errorf("unsupported output image format: %s", format)
95
97
}
+31
formats/web/postcard.svg.qtpl
+31
formats/web/postcard.svg.qtpl
···
1
+
{% func SVG(v svgVars) %}
2
+
<svg
3
+
xmlns="http://www.w3.org/2000/svg"
4
+
{% if v.size.HasPhysical() %}
5
+
{% code
6
+
cmW, cmH := v.size.MustPhysical()
7
+
%}
8
+
width="{%f.2 cmW %}cm"
9
+
height="{%f.2 cmH * 2 %}cm"
10
+
{% endif %}
11
+
viewBox="0 0 {%d v.size.PxWidth %} {%d v.size.PxHeight * 2 %}"
12
+
version="1.1"
13
+
>
14
+
<metadata>{%s= string(v.metadata) %}</metadata>
15
+
<defs>
16
+
<clipPath id="edge">
17
+
<path d="{%s pointsToPath(v.frontPoints, v.size.PxWidth, v.size.PxHeight, false) %}"/>
18
+
<path d="{%s pointsToPath(v.backPoints, v.size.PxWidth, v.size.PxHeight, true) %}"/>
19
+
</clipPath>
20
+
</defs>
21
+
<image
22
+
x="0"
23
+
y="0"
24
+
width="100%"
25
+
height="100%"
26
+
preserveAspectRatio="none"
27
+
clip-path="url(#edge)"
28
+
href="data:image/jpeg;base64,{%s v.b64Img %}"
29
+
/>
30
+
</svg>
31
+
{% endfunc %}
+124
formats/web/postcard.svg.qtpl.go
+124
formats/web/postcard.svg.qtpl.go
···
1
+
// Code generated by qtc from "postcard.svg.qtpl". DO NOT EDIT.
2
+
// See https://github.com/valyala/quicktemplate for details.
3
+
4
+
//line postcard.svg.qtpl:1
5
+
package web
6
+
7
+
//line postcard.svg.qtpl:1
8
+
import (
9
+
qtio422016 "io"
10
+
11
+
qt422016 "github.com/valyala/quicktemplate"
12
+
)
13
+
14
+
//line postcard.svg.qtpl:1
15
+
var (
16
+
_ = qtio422016.Copy
17
+
_ = qt422016.AcquireByteBuffer
18
+
)
19
+
20
+
//line postcard.svg.qtpl:1
21
+
func StreamSVG(qw422016 *qt422016.Writer, v svgVars) {
22
+
//line postcard.svg.qtpl:1
23
+
qw422016.N().S(`
24
+
<svg
25
+
xmlns="http://www.w3.org/2000/svg"
26
+
`)
27
+
//line postcard.svg.qtpl:4
28
+
if v.size.HasPhysical() {
29
+
//line postcard.svg.qtpl:4
30
+
qw422016.N().S(`
31
+
`)
32
+
//line postcard.svg.qtpl:6
33
+
cmW, cmH := v.size.MustPhysical()
34
+
35
+
//line postcard.svg.qtpl:7
36
+
qw422016.N().S(`
37
+
width="`)
38
+
//line postcard.svg.qtpl:8
39
+
qw422016.N().FPrec(cmW, 2)
40
+
//line postcard.svg.qtpl:8
41
+
qw422016.N().S(`cm"
42
+
height="`)
43
+
//line postcard.svg.qtpl:9
44
+
qw422016.N().FPrec(cmH*2, 2)
45
+
//line postcard.svg.qtpl:9
46
+
qw422016.N().S(`cm"
47
+
`)
48
+
//line postcard.svg.qtpl:10
49
+
}
50
+
//line postcard.svg.qtpl:10
51
+
qw422016.N().S(`
52
+
viewBox="0 0 `)
53
+
//line postcard.svg.qtpl:11
54
+
qw422016.N().D(v.size.PxWidth)
55
+
//line postcard.svg.qtpl:11
56
+
qw422016.N().S(` `)
57
+
//line postcard.svg.qtpl:11
58
+
qw422016.N().D(v.size.PxHeight * 2)
59
+
//line postcard.svg.qtpl:11
60
+
qw422016.N().S(`"
61
+
version="1.1"
62
+
>
63
+
<metadata>`)
64
+
//line postcard.svg.qtpl:14
65
+
qw422016.N().S(string(v.metadata))
66
+
//line postcard.svg.qtpl:14
67
+
qw422016.N().S(`</metadata>
68
+
<defs>
69
+
<clipPath id="edge">
70
+
<path d="`)
71
+
//line postcard.svg.qtpl:17
72
+
qw422016.E().S(pointsToPath(v.frontPoints, v.size.PxWidth, v.size.PxHeight, false))
73
+
//line postcard.svg.qtpl:17
74
+
qw422016.N().S(`"/>
75
+
<path d="`)
76
+
//line postcard.svg.qtpl:18
77
+
qw422016.E().S(pointsToPath(v.backPoints, v.size.PxWidth, v.size.PxHeight, true))
78
+
//line postcard.svg.qtpl:18
79
+
qw422016.N().S(`"/>
80
+
</clipPath>
81
+
</defs>
82
+
<image
83
+
x="0"
84
+
y="0"
85
+
width="100%"
86
+
height="100%"
87
+
preserveAspectRatio="none"
88
+
clip-path="url(#edge)"
89
+
href="data:image/jpeg;base64,`)
90
+
//line postcard.svg.qtpl:28
91
+
qw422016.E().S(v.b64Img)
92
+
//line postcard.svg.qtpl:28
93
+
qw422016.N().S(`"
94
+
/>
95
+
</svg>
96
+
`)
97
+
//line postcard.svg.qtpl:31
98
+
}
99
+
100
+
//line postcard.svg.qtpl:31
101
+
func WriteSVG(qq422016 qtio422016.Writer, v svgVars) {
102
+
//line postcard.svg.qtpl:31
103
+
qw422016 := qt422016.AcquireWriter(qq422016)
104
+
//line postcard.svg.qtpl:31
105
+
StreamSVG(qw422016, v)
106
+
//line postcard.svg.qtpl:31
107
+
qt422016.ReleaseWriter(qw422016)
108
+
//line postcard.svg.qtpl:31
109
+
}
110
+
111
+
//line postcard.svg.qtpl:31
112
+
func SVG(v svgVars) string {
113
+
//line postcard.svg.qtpl:31
114
+
qb422016 := qt422016.AcquireByteBuffer()
115
+
//line postcard.svg.qtpl:31
116
+
WriteSVG(qb422016, v)
117
+
//line postcard.svg.qtpl:31
118
+
qs422016 := string(qb422016.B)
119
+
//line postcard.svg.qtpl:31
120
+
qt422016.ReleaseByteBuffer(qb422016)
121
+
//line postcard.svg.qtpl:31
122
+
return qs422016
123
+
//line postcard.svg.qtpl:31
124
+
}
+82
formats/web/svg.go
+82
formats/web/svg.go
···
1
+
package web
2
+
3
+
import (
4
+
"bytes"
5
+
"encoding/base64"
6
+
"encoding/json"
7
+
"fmt"
8
+
"image"
9
+
"io"
10
+
"strings"
11
+
12
+
"github.com/jphastings/dotpostcard/internal/geom3d"
13
+
"github.com/jphastings/dotpostcard/internal/images"
14
+
"github.com/jphastings/dotpostcard/types"
15
+
)
16
+
17
+
//go:generate qtc -file postcard.svg.qtpl
18
+
19
+
type svgVars struct {
20
+
size types.Size
21
+
b64Img string
22
+
frontPoints []geom3d.Point
23
+
backPoints []geom3d.Point
24
+
metadata []byte
25
+
}
26
+
27
+
// This keeps the whole JPEG in memory. TODO: Figure out how to do this while streaming
28
+
func writeSVG(w io.Writer, pc types.Postcard, combinedImg image.Image, xmpData []byte) error {
29
+
frontPoints, err := images.Outline(pc.Front, false, false)
30
+
if err != nil {
31
+
return fmt.Errorf("front image can't be outlined: %w", err)
32
+
}
33
+
// TODO: Handle no back
34
+
backPoints, err := images.Outline(pc.Back, false, false)
35
+
if err != nil {
36
+
return fmt.Errorf("back image can't be outlined: %w", err)
37
+
}
38
+
39
+
var buf bytes.Buffer
40
+
b64W := base64.NewEncoder(base64.StdEncoding, &buf)
41
+
if err := images.WriteJPEG(b64W, combinedImg, nil); err != nil {
42
+
return err
43
+
}
44
+
45
+
meta, err := json.Marshal(pc.Meta)
46
+
if err != nil {
47
+
return err
48
+
}
49
+
50
+
v := svgVars{
51
+
size: pc.Meta.Physical.FrontDimensions,
52
+
b64Img: buf.String(),
53
+
frontPoints: frontPoints,
54
+
backPoints: backPoints,
55
+
metadata: meta,
56
+
}
57
+
58
+
WriteSVG(w, v)
59
+
return nil
60
+
}
61
+
62
+
func pointsToPath(points []geom3d.Point, w, h int, back bool) string {
63
+
offsetH := 0
64
+
if back {
65
+
offsetH = h
66
+
}
67
+
68
+
var path strings.Builder
69
+
for i, p := range points {
70
+
if i == 0 {
71
+
path.WriteString("M")
72
+
} else {
73
+
path.WriteString("L")
74
+
}
75
+
x := p.X * float64(w)
76
+
y := p.Y*float64(h) + float64(offsetH)
77
+
path.WriteString(fmt.Sprintf("%.1f %.1f", x, y))
78
+
79
+
}
80
+
path.WriteString("Z")
81
+
return path.String()
82
+
}
+10
go.sum
+10
go.sum
···
8
8
github.com/alecthomas/chroma/v2 v2.19.0/go.mod h1:RVX6AvYm4VfYe/zsk7mjHueLDZor3aWCNE14TFlepBk=
9
9
github.com/alecthomas/repr v0.4.0 h1:GhI2A8MACjfegCPVq9f1FLvIBS+DrQ2KQBFZP1iFzXc=
10
10
github.com/alecthomas/repr v0.4.0/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
11
+
github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
11
12
github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
12
13
github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
13
14
github.com/aymanbagabas/go-udiff v0.2.0 h1:TK0fH4MteXUDspT88n8CKzvK0X9O2xu9yQjWpi6yML8=
14
15
github.com/aymanbagabas/go-udiff v0.2.0/go.mod h1:RE4Ex0qsGkTAJoQdQQCA0uG+nAzJO/pI/QwceO5fgrA=
15
16
github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
16
17
github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
18
+
github.com/bits-and-blooms/bitset v1.22.0/go.mod h1:7hO7Gc7Pp1vODcmWvKMRA9BNmbv6a/7QIWpPxHddWR8=
17
19
github.com/calvinfeng/rdp-path-simplification v0.0.0-20180903222510-ae464721f91c h1:rY8nXHWBaXCqDuMfge4bNhbQ/KYgGK0b9ZduB3BosY0=
18
20
github.com/calvinfeng/rdp-path-simplification v0.0.0-20180903222510-ae464721f91c/go.mod h1:5c8wO8qWvpTEFr5p+oeHaCig8KEZAQoLLm24DzsEMwQ=
19
21
github.com/campoy/embedmd v1.0.0 h1:V4kI2qTJJLf4J29RzI/MAt2c3Bl4dQSYPuflzwFH2hY=
···
99
101
github.com/golang/geo v0.0.0-20210211234256-740aa86cb551/go.mod h1:QZ0nwyI2jOfgRAoBvP+ab5aRr7c9x7lhGEJrKvBwjWI=
100
102
github.com/golang/geo v0.0.0-20250707181242-c5087ca84cf4 h1:vCeHcs8N7MOccOOsOVIy1xcYu+kBkA4J5urTgigww7c=
101
103
github.com/golang/geo v0.0.0-20250707181242-c5087ca84cf4/go.mod h1:AN0OjM34c3PbjAsX+QNma1nYtJtRxl+s9MZNV7S+efw=
104
+
github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
102
105
github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
103
106
github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
107
+
github.com/google/go-units v0.0.0-20250612230646-eddd77f68220/go.mod h1:wBcRMlRM/bVzYk9xtR2hOp3+iWOhEh1FiK8sAzeR9eA=
104
108
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
105
109
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
106
110
github.com/gorilla/css v1.0.1 h1:ntNaBIghp6JmvWnxbZKANoLyuXTPZ4cAMlo6RyhlbO8=
···
115
119
github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
116
120
github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
117
121
github.com/jessevdk/go-flags v1.5.0/go.mod h1:Fw0T6WPc1dYxT4mKEZRfG5kJhaTDP9pj1c2EWnYs/m4=
122
+
github.com/klauspost/compress v1.17.9/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
118
123
github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
119
124
github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
120
125
github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
···
131
136
github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
132
137
github.com/microcosm-cc/bluemonday v1.0.27 h1:MpEUotklkwCSLeH+Qdx1VJgNqLlpY2KXwXFM08ygZfk=
133
138
github.com/microcosm-cc/bluemonday v1.0.27/go.mod h1:jFi9vgW+H7c3V0lb6nR74Ib/DIB5OBs92Dimizgw2cA=
139
+
github.com/montanaflynn/stats v0.6.6/go.mod h1:etXPPgVO6n31NxCd9KQUMvCM+ve0ruNzt6R8Bnaayow=
134
140
github.com/muesli/reflow v0.3.0 h1:IFsN6K9NfGtjeggFP+68I4chLZV2yIKsXJFNZ+eWh6s=
135
141
github.com/muesli/reflow v0.3.0/go.mod h1:pbwTDkVPibjO2kyvBQRBxTWEEGDGq0FlB1BIKtnHY/8=
136
142
github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc=
···
157
163
github.com/spf13/cobra v1.9.1/go.mod h1:nDyEzZ8ogv936Cinf6g1RU9MRY64Ir93oCnqb9wxYW0=
158
164
github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
159
165
github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
166
+
github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
160
167
github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
161
168
github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
162
169
github.com/sunshineplan/tiff v0.0.0-20220128141034-29b9d69bd906 h1:+yYRCj+PGQNnnen4+/Q7eKD2J87RJs+O39bjtHhPauk=
163
170
github.com/sunshineplan/tiff v0.0.0-20220128141034-29b9d69bd906/go.mod h1:O+Ar7ouRbdfxLgoZLFz447/dvdM1NVKk1VpOQaijvAU=
164
171
github.com/tetratelabs/wazero v1.9.0 h1:IcZ56OuxrtaEz8UYNRHBrUa9bYeX9oVY93KspZZBf/I=
165
172
github.com/tetratelabs/wazero v1.9.0/go.mod h1:TSbcXCfFP0L2FGkRPxHphadXPjo1T6W+CseNNY7EkjM=
173
+
github.com/tmaxmax/go-sse v0.8.0/go.mod h1:HLoxqxdH+7oSUItjtnpxjzJedfr/+Rrm/dNWBcTxJFM=
166
174
github.com/trimmer-io/go-xmp v1.0.0 h1:zY8bolSga5kOjBAaHS6hrdxLgEoYuT875xTy0QDwZWs=
167
175
github.com/trimmer-io/go-xmp v1.0.0/go.mod h1:Aaptr9sp1lLv7UnCAdQ+gSHZyY2miYaKmcNVj7HRBwA=
168
176
github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
169
177
github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
178
+
github.com/valyala/fasthttp v1.55.0/go.mod h1:NkY9JtkrpPKmgwV3HTaS2HWaJss9RSIsRVfcxxoHiOM=
170
179
github.com/valyala/quicktemplate v1.8.0 h1:zU0tjbIqTRgKQzFY1L42zq0qR3eh4WoQQdIdqCysW5k=
171
180
github.com/valyala/quicktemplate v1.8.0/go.mod h1:qIqW8/igXt8fdrUln5kOSb+KWMaJ4Y8QUsfd1k6L2jM=
172
181
github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
···
176
185
github.com/yuin/goldmark-emoji v1.0.6 h1:QWfF2FYaXwL74tfGOW5izeiZepUDroDJfWubQI9HTHs=
177
186
github.com/yuin/goldmark-emoji v1.0.6/go.mod h1:ukxJDKFpdFb5x0a5HqbdlcKtebh086iJpI31LTKmWuA=
178
187
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
188
+
golang.org/x/crypto v0.40.0/go.mod h1:Qr1vMER5WyS2dfPHAlsOj01wgLbsyWtFn/aY+5+ZdxY=
179
189
golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b h1:M2rDM6z3Fhozi9O7NWsxAkg/yqS/lQJ6PmkyIV3YP+o=
180
190
golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b/go.mod h1:3//PLf8L/X+8b4vuAfHzxeRUl04Adcb341+IGKfnqS8=
181
191
golang.org/x/image v0.29.0 h1:HcdsyR4Gsuys/Axh0rDEmlBmB68rW1U9BUdB3UVHsas=
+4
-2
internal/images/outline.go
+4
-2
internal/images/outline.go
···
11
11
"github.com/jphastings/dotpostcard/internal/geom3d"
12
12
)
13
13
14
+
// const linePrecision = 0.0022
15
+
const linePrecision = 0.0012
16
+
14
17
// Returns the outline of the image's transparency as an _anticlockwise_ series of X/Y points
15
18
func Outline(im image.Image, invertX, invertY bool) ([]geom3d.Point, error) {
16
19
b := im.Bounds()
···
49
52
pos, dir = nextPos, nextDir
50
53
}
51
54
52
-
ep := 0.0022
53
-
path := rdp.SimplifyPath(outline, ep)
55
+
path := rdp.SimplifyPath(outline, linePrecision)
54
56
55
57
geomPath := make([]geom3d.Point, len(path))
56
58
for i, p := range path {