facebook graph api: understanding offset_y offset_x API
user6920 Published in September 20, 2018, 4:47 pm
Hello I am trying to understand what offset_y means in facebooks graph API https://developers.facebook.com/docs/graph-api/reference/cover-photo/.
y_offset: When greater than 0% but less than 100%, the cover photo overflows
vertically. The value represents the vertical manual offset (the
amount the user dragged the photo vertically to show the part of
interest) as a percentage of the offset necessary to make the photo
fit the space.
I have tried using the solution in facebook graph api: offset_y offset_x,
but it does work.
for example, this event https://www.facebook.com/events/164312630996898/. The event picture has a css top offset of -3px:
In order to calculate this, I will attempt to use the method in facebook graph api: offset_y offset_x
The image is 500x622px (when resized to fit), the event image space is 500x262px. 622px-262px = 360px. using the facebook graph API (https://developers.facebook.com/tools/explorer?method=GET&path=164312630996898%3Ffields%3Dcover&version=v2.12) gives an offset-y of 9:
so 9% of 360px is, 32.4px, but the actual answer should be 3px.