字体预览

复制from PIL import ImageFont, ImageDraw, Image

# 加载字体文件，渲染指定文本为图像
font_path = "path/to/font.ttf"
text = "Hello, 字体预览"
font_size = 48

# 创建字体对象
font = ImageFont.truetype(font_path, font_size)

# 计算文本尺寸并创建空白画布
bbox = font.getbbox(text)
width, height = bbox[2] - bbox[0], bbox[3] - bbox[1]
img = Image.new("RGB", (width + 20, height + 20), "white")
draw = ImageDraw.Draw(img)

# 绘制文本
draw.text((10, 10), text, font=font, fill="black")
img.save("preview.png")
print("预览图像已保存到 preview.png")

复制package main

import (
	"fmt"
	"image"
	"image/png"
	"os"

	"github.com/golang/freetype"
	"golang.org/x/image/font"
	"golang.org/x/image/math/fixed"
)

func main() {
	// 读取字体文件
	fontBytes, err := os.ReadFile("path/to/font.ttf")
	if err != nil {
		panic(err)
	}
	f, err := freetype.ParseFont(fontBytes)
	if err != nil {
		panic(err)
	}

	// 创建画布
	img := image.NewRGBA(image.Rect(0, 0, 400, 100))
	c := freetype.NewContext()
	c.SetDPI(72)
	c.SetFont(f)
	c.SetFontSize(48)
	c.SetClip(img.Bounds())
	c.SetDst(img)
	c.SetSrc(image.White)

	// 绘制文本
	pt := freetype.Pt(10, 50)
	_, err = c.DrawString("Hello, 字体预览", pt)
	if err != nil {
		panic(err)
	}

	// 保存为 PNG
	fout, _ := os.Create("preview.png")
	defer fout.Close()
	png.Encode(fout, img)
	fmt.Println("预览图像已保存到 preview.png")
}

复制const fs = require('fs');
const { createCanvas, registerFont } = require('canvas');

// 注册字体文件
registerFont('path/to/font.ttf', { family: 'CustomFont' });

// 创建画布
const canvas = createCanvas(400, 100);
const ctx = canvas.getContext('2d');

// 设置字体并渲染
ctx.font = '48px CustomFont';
ctx.fillStyle = 'black';
ctx.fillText('Hello, 字体预览', 10, 60);

// 保存为 PNG
const buffer = canvas.toBuffer('image/png');
fs.writeFileSync('preview.png', buffer);
console.log('预览图像已保存到 preview.png');