file_upload - invalid geometry

rubyonrails-talk
1

Hi

I want to use file_column to upload and crop some images. I can get it uploading absolutely fine but whenever I try and crop and image I recieve the error:

invalid geometry string `'

Can someone please show me an example of how to do this, I want to create three files

1. thumb - 110x85 2. medium - 180xscaled height 3. large - 560x300

All of these need to keep there proportions e.g cropped and resized not just resized.

Any help much appreciated

Jono

2

Hi Jono,

I'm also learning to use file_column and found this page talking about geometry string. FYI.

http://www.imagemagick.org/RMagick/doc/imusage.html#geometry

Hope it helps.

Thanks,

walls

3

This message means that whatever you passed to Rmagick isn't the correct syntax.

Since you didn't post your code, hard to point out where you went wrong but I recommend you look at any Rmagick example - the syntax for geometry is the same.

I.e.

file_column :photo, :magick => {:versions => { "thumb" => "110x85", "medium" => "200x", "large" => "500x300"}}

4

Hi Thanks for your replies.

The code I have tried is:

# upload   file_column :image_1, :magick => { :versions => {       :thumb => {:crop => "1:1", :size => "110x85"},       :medium => {:crop => "1:1", :size => "255x165"},       :large => {:crop => "1:1", :size => "560x300"}     }   }

Its still erroring. I want it to resize and crop so the proportions are kept.

Any help much appreciated.

5

Hi

This has been driving me crazy have tried everything, can anyone please shed some light?