[wp-trac] [WordPress Trac] #40370: add_image_sizes does not create the "crop position" versions of the image

[WordPress Trac]

#40370: add_image_sizes does not create the "crop position" versions of the image
--------------------------+------------------------------
 Reporter:  piejesus      |       Owner:
     Type:  enhancement   |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Media         |     Version:  2.9
 Severity:  normal        |  Resolution:
 Keywords:  dev-feedback  |     Focuses:
--------------------------+------------------------------

Comment (by enochfung):

 Replying to [ticket:40370 piejesus]:
 > I wanted to introduce 3 different version of post thumbnails - each with
 different cropping position (top, center, left) , so i added them like
 this:
 >
 > {{{#!php
 > add_image_size( 'newscentered', 400, 400, array( 'center', 'center') );
 > add_image_size( 'newstop', 400, 400, array( 'center', 'top' ) );
 > add_image_size( 'newsbottom', 400, 400, array( 'center', 'bottom' ) );
 > }}}
 >
 >
 > Now, whenever i use the the_post_thumbnail() with the name of my custom
 image size i always get the same image, cropped to the default Wordpress
 crop position of ('center', 'center') .
 >
 > Why is that happening? I did 'refresh' the thumbnails and tried also
 uploading fresh image files and still i can't get 3 differently cropped
 versions of the image.
 >
 > I noticed that when i set the cropping defaults using the following
 function and set the cropping there, then it works:
 >
 > {{{#!php
 > set_post_thumbnail_size( 400, 400, array('center', 'bottom'));
 > }}}
 >
 >
 > ... but it affects the cropping of all of my thumbnails, so i can only
 get one "crop position" for all my images.
 >
 > Guys, is this some kind of bug or do i configure something in a wrong
 way?
 >
 > I'm using the newest official Wordpress version

 Hello, I'm using version 4.9 now (2017) and the same thing is still
 happening. Was wondering if it had been "enhanced" in previous versions?

--
Ticket URL: <https://core.trac.wordpress.org/ticket/40370#comment:5>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform