how to compute Facebook graph api cover offset_y to pixel?

Question

I can retrieve facebook cover source and offset_y from graph api for example -

https://graph.facebook.com/Inna

I get this -

\"cover\": {
           


        

Answer 1

MoXplod, are you sure about it?

From my experience the offset is a % of the invisible part of the image (aka the part that doesn't fit in the window).

For example: offset = 51 facebook cover photo size (web) = 851X315 scaled image size = 851X1135 top= -420px.

So top = 51% * (1135-315).

I have tried it with many diffrent cover photos of different sizes.