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user12763413's questions

Martin Hope
user12763413
Asked: 2025-02-12 04:04:05 +0800 CST
  • 5
# frozen_string_literal: true

class UserUploader < ApplicationUploader
  include CarrierWave::MiniMagick

  def generate_image(text)
    tmp_path = File.join(Dir.tmpdir, "#{SecureRandom.hex}.png")

    MiniMagick::Tool::Convert.new do |img|
      img.size "500x200"
      img.xc "white"            # Background color
      img.gravity "Center"      # Center the text
      img.pointsize "36"        # Font size
      img.fill "black"          # Text color
      img.draw "text 0,0 '#{text}'"
      img.font "#{Rails.root.join('public', 'font', 'Franklin_Gothic_Heavy_Regular.ttf')}"
      img << tmp_path           # Save image to this path
    end

    File.open(tmp_path)  # Return file handle
  end
end

我从前端发送参数，我在前端使用的字体是 Franklin_Gothic_Heavy_Regular.ttf，定义在 app/assets/fonts/Franklin_Gothic_Heavy_Regular.ttf

为了在上传器中使用它，我在 public/font/Franklin_Gothic_Heavy_Regular.ttf 中添加了相同的字体文件，但是存储图像时它不会显示正确的字体。

我在前端使用 vuejs，在后端使用 rails。请帮我修复这个问题。

ImageMagick 信息

Version: ImageMagick 7.1.0-58 Q16-HDRI x86_64 20802 https://imagemagick.org
Copyright: (C) 1999 ImageMagick Studio LLC
License: https://imagemagick.org/script/license.php
Features: Cipher DPC HDRI Modules OpenMP(5.0) 
Delegates (built-in): bzlib fontconfig freetype gslib heic jng jp2 jpeg jxl lcms lqr ltdl lzma openexr png ps raw tiff webp xml zlib
Compiler: gcc (4.2)

放入 img.command.join(" ") 返回

magick convert -size 500x200 xc:white -gravity Center -pointsize 36 -fill black -draw text 0,0 'Testing Font' -font /Users/Documents/work/company/public/font/Franklin_Gothic_Heavy_Regular.ttf /var/folders/tc/3b0wh1xs7z7dms5rxj1l23_00000gn/T/74a90ba3c194bda014cb2706a3fcdd32.png
ruby-on-rails