Music Symbol for image
aguai opened this issue · 1 comments
aguai commented
I try to put output some music symbol just like the example but fail
anyone can help?
aguai@Sherlock:example/freetype>>$ cat main.go =03-06 00:31=
// Copyright 2010 The Freetype-Go Authors. All rights reserved.
// Use of this source code is governed by your choice of either the
// FreeType License or the GNU General Public License version 2 (or
// any later version), both of which can be found in the LICENSE file.
// +build ignore
//
// This build tag means that "go install github.com/golang/freetype/..."
// doesn't install this example program. Use "go run main.go" to run it.
package main
import (
"bufio"
"flag"
"fmt"
"image"
"image/color"
"image/draw"
"image/png"
"io/ioutil"
"log"
"os"
"github.com/golang/freetype"
"golang.org/x/image/font"
)
var (
dpi = flag.Float64("dpi", 72, "screen resolution in Dots Per Inch")
fontfile = flag.String("fontfile", "./HanaMinA.ttf", "filename of the ttf font")
hinting = flag.String("hinting", "none", "none | full")
size = flag.Float64("size", 48, "font size in points")
spacing = flag.Float64("spacing", 1.5, "line spacing (e.g. 2 means double spaced)")
wonb = flag.Bool("whiteonblack", false, "white text on a black background")
)
var text = []string{
"руссий текст",
"𝄝𝄞𝄟𝄠𝄡𝄢𝄣𝄤𝄥 ",
"亂入啊亂入",
"One, two! One, two! and through and through"
}
func main() {
flag.Parse()
// Read the font data.
fontBytes, err := ioutil.ReadFile(*fontfile)
if err != nil {
log.Println(err)
return
}
f, err := freetype.ParseFont(fontBytes)
if err != nil {
log.Println(err)
return
}
// Initialize the context.
fg, bg := image.Black, image.White
ruler := color.RGBA{0xdd, 0xdd, 0xdd, 0xff}
if *wonb {
fg, bg = image.White, image.Black
ruler = color.RGBA{0x22, 0x22, 0x22, 0xff}
}
rgba := image.NewRGBA(image.Rect(0, 0, 1600, 1000))
draw.Draw(rgba, rgba.Bounds(), bg, image.ZP, draw.Src)
c := freetype.NewContext()
c.SetDPI(*dpi)
c.SetFont(f)
c.SetFontSize(*size)
c.SetClip(rgba.Bounds())
c.SetDst(rgba)
c.SetSrc(fg)
switch *hinting {
default:
c.SetHinting(font.HintingNone)
case "full":
c.SetHinting(font.HintingFull)
}
// Draw the guidelines.
for i := 0; i < 200; i++ {
rgba.Set(10, 10+i, ruler)
rgba.Set(10+i, 10, ruler)
}
// Draw the text.
pt := freetype.Pt(10, 10+int(c.PointToFixed(*size)>>6))
for _, s := range text {
_, err = c.DrawString(s, pt)
if err != nil {
log.Println(err)
return
}
pt.Y += c.PointToFixed(*size * *spacing)
}
// Save that RGBA image to disk.
outFile, err := os.Create("out.png")
if err != nil {
log.Println(err)
os.Exit(1)
}
defer outFile.Close()
b := bufio.NewWriter(outFile)
err = png.Encode(b, rgba)
if err != nil {
log.Println(err)
os.Exit(1)
}
err = b.Flush()
if err != nil {
log.Println(err)
os.Exit(1)
}
fmt.Println("Wrote out.png OK.")
}
nigeltao commented
I think you'll have to use a different font. I suspect that HanaMinA.ttf does not contain glyphs for the musical symbols.