如何在ruby on rails中将文本转换为图像

gem 'rmagick'

require 'rmagick'

class YourController < ApplicationController
  def text_to_image
    text = params[:text] # 从请求参数中获取文本

    # 创建一个新的Magick::Image对象
    image = Magick::Image.new(200, 100) do
      self.background_color = 'white' # 设置背景颜色
      self.font = 'Arial' # 设置字体
      self.pointsize = 24 # 设置字体大小
    end

    # 在图像上绘制文本
    draw = Magick::Draw.new
    draw.annotate(image, 0, 0, 0, 0, text) do
      self.gravity = Magick::CenterGravity # 设置文本位置为居中
      self.fill = 'black' # 设置文本颜色
    end

    # 将图像保存为文件
    image_path = Rails.root.join('public', 'images', 'text_image.png')
    image.write(image_path)

    render json: { image_url: image_path }, status: :ok
  end
end

post '/text_to_image', to: 'your_controller#text_to_image'

<%= form_tag('/text_to_image', method: 'post') do %>
  <%= text_field_tag(:text) %>
  <%= submit_tag('Convert to Image') %>
<% end %>