Ruby-on-rails 使用 Paperclip 进行简单裁剪
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Simple cropping with Paperclip
提问by collimarco
I would like to crop images on upload using Paperclip to get square thumbs from the center of the original picture. I find out a method in documentation that seems to do exactly what I want:
我想在上传时使用 Paperclip 裁剪图像以从原始图片的中心获取方形拇指。我在文档中找到了一种方法，它似乎完全符合我的要求：
transformation_to(dst, crop = false)
The problem is that I can't figure out where to use this method. It would be great to simply pass something as a parameter here:
问题是我不知道在哪里使用这种方法。在这里简单地将一些东西作为参数传递会很棒：
has_attached_file :picture,
:styles => { :medium => "600x600>", :thumb => "something here" }
回答by collimarco
You only need to use # instead of > as a parameter:
您只需要使用 # 而不是 > 作为参数：
has_attached_file :picture, :styles => { :thumb => "200x200#" }
