我一直在努力獲得SVG字符串轉換爲Rails 3.2應用程序中的PNG圖像，使用Rmagick和ImageMagick安裝。
SVG流
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用於轉換SVG字符串SVG圖像（部分路徑調整後）：
Rails：SVG到PNG使用imagemagick/RMagick
def get_svg_image(svg_data)
replace_path = LIVEARTPRODUCTS["product_#{@liveart_id.to_s}"]["path"] if LIVEARTPRODUCTS["product_#{@liveart_id.to_s}"]
replace_image = replace_path ? replace_path : "/liveart_images/default_products/cool-t-shirt_White_front.jpg"
svg_data = svg_data.gsub(replace_image, "#{params["edited_image"].split("?")[0]}") if params["edited_image"].present?
svg_data = svg_data.gsub("/system/product_images/", "#{Rails.root}/public/system/product_images/");
svg_data = svg_data.gsub("/liveart_images/default_products", "#{Rails.root}/public/liveart_images/default_products")
svg_data = svg_data.gsub("/liveart_images/uploads", "#{Rails.root}/public/liveart_images/uploads")
svg_data = svg_data.gsub("/liveart_images/graphic_images", "#{Rails.root}/public/liveart_images/graphic_images")
svg_data = svg_data.gsub("/assets/fonts.css", "#{Rails.root}/app/assets/stylesheets/fonts.css")
ilist = Magick::ImageList.new
svg_image = ilist.from_blob(svg_data)
end
稱這種方法在控制器：
要求'RMagick'
def save_design
svg_data = (getting from some json got from submit)
svg_image = get_svg_image(svg_data)
# write svg image as png image
png_file = Tempfile.new(["#{rand(9999).to_s}",'.png'])
svg_image.write(png_file.path)
# Create new product image from new temp image formed
@pi = ProductImage.new
@pi.image = png_file
respond_to do |format|
if (@pi.save)
format.json
else
format.json {render :json => {status => 'error', message => 'Internal error occurred'}}
end
end
end
這上面的代碼是一個我開發的機器上流暢運行。
機配置：
的Fedora：
滑軌：3.2
紅寶石：1.9.2-P320
ImageMagick的：6.7.0-10（安裝蔭安裝的ImageMagick-devel的）
寶石 RMagick：2.13.2
但是，另一Ubuntu機上，（也分期和生產）：
Ubuntu的：14.04
滑軌：3.2
紅寶石：1.9.2-P320
ImageMagick的：6.7.7- 10（安裝命令和apt-get安裝ImageMagick的libmagickwand-dev的librsvg2-DEV）
寶石 RMagick：2.13.2
但是，只有空白圖像僅適用於應用字體的文本。在最終創建的SVG和PNG圖像中不包含鏈接的圖像。
圖像包含在上述SVG字符串：
/home/user_name/apps/project1/develop/public/system/product_images/67bf5f8332fbe4584c64eae7be25b70a80473d3d.jpg
嘗試變更訪問權限並重新安裝所有的圖書館，但尚未豐碩.... :(