blocks|key|1624557|text|因此，我对此进行了大量的实验，并且我100%25确信offset_x、offset_y没有得到正确的文档记录，甚至在许多情况下甚至不足以描述偏移量。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1624558|在我的例子中，我使用了下面列出的两个图像，并对不同的拖拽做了一些实验。|1624559|​|1624560|📷|atomic|1624561|1624562|1624563|1624564|1624565|事件创建于|1624566|https://www.facebook.com/events/901430313369669/|1624567|1624568|1624569|1624570|以上2幅图像的数据如下。|1624571|1624572|1624573|1624574|对于第二个图像，您可以看到，无论我保持图像左对齐、右对齐还是中心对齐，偏移量总是为0。但left仍在计算之中。这意味着facebook没有正确地共享偏移信息。这很可能是基于第二张图像的观察结果的错误。|1624575|同样奇怪的是来自第一个图像的-77，177条目|1624576|1624577|1624578|1624579|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/7338f45a1930b9592d72a57e79fc7049.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/febecf980df541e15b8afec097b63261.png|2|LINK|MUTABLE|url|3|https://developer.qcloudimg.com/http-save/yehe-900000/716c23cd5558d3f70519b77284cbe18c.png|4|https://developer.qcloudimg.com/http-save/yehe-900000/471acd4aac999eb5266980b66c77bac8.png|5|https://developer.qcloudimg.com/http-save/yehe-900000/2020caed5ba295c7642d61583f90ff05.png^0|O|8|X|8|0|0|0|0|1|0|0|0|0|0|1|1|0|0|0|0|1C|2|0|0|0|1|3|0|0|0|0|0|1|4|0|0|18|4|0|E|3|I|3|0|0|0|1|5|0|0^^$0|@$1|2|3|4|5|6|7|1U|8|@$9|1V|A|1W|B|C]|$9|1X|A|1Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1Z|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|20|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|21|8|@]|D|@$9|22|A|23|1|24]]|E|$]]|$1|M|3|I|5|6|7|25|8|@]|D|@]|E|$]]|$1|N|3|I|5|6|7|26|8|@]|D|@]|E|$]]|$1|O|3|K|5|L|7|27|8|@]|D|@$9|28|A|29|1|2A]]|E|$]]|$1|P|3|I|5|6|7|2B|8|@]|D|@]|E|$]]|$1|Q|3|R|5|6|7|2C|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|2D|8|@]|D|@$9|2E|A|2F|1|2G]]|E|$]]|$1|U|3|I|5|6|7|2H|8|@]|D|@]|E|$]]|$1|V|3|K|5|L|7|2I|8|@]|D|@$9|2J|A|2K|1|2L]]|E|$]]|$1|W|3|I|5|6|7|2M|8|@]|D|@]|E|$]]|$1|X|3|Y|5|6|7|2N|8|@]|D|@]|E|$]]|$1|Z|3|I|5|6|7|2O|8|@]|D|@]|E|$]]|$1|10|3|K|5|L|7|2P|8|@]|D|@$9|2Q|A|2R|1|2S]]|E|$]]|$1|11|3|I|5|6|7|2T|8|@]|D|@]|E|$]]|$1|12|3|13|5|6|7|2U|8|@$9|2V|A|2W|B|C]]|D|@]|E|$]]|$1|14|3|15|5|6|7|2X|8|@$9|2Y|A|2Z|B|C]|$9|30|A|31|B|C]]|D|@]|E|$]]|$1|16|3|I|5|6|7|32|8|@]|D|@]|E|$]]|$1|17|3|K|5|L|7|33|8|@]|D|@$9|34|A|35|1|36]]|E|$]]|$1|18|3|I|5|6|7|37|8|@]|D|@]|E|$]]|$1|19|3|-4|5|6|7|38|8|@]|D|@]|E|$]]]|1A|$1B|$5|1C|1D|1E|E|$1F|1G|1H|-4]]|1I|$5|1C|1D|1E|E|$1F|1J|1H|-4]]|1K|$5|1L|1D|1M|E|$1N|T]]|1O|$5|1C|1D|1E|E|$1F|1P|1H|-4]]|1Q|$5|1C|1D|1E|E|$1F|1R|1H|-4]]|1S|$5|1C|1D|1E|E|$1F|1T|1H|-4]]]]

So I have experimented with this a lot and I am 100% sure the <code>offset_x</code>, <code>offset_y</code> are not properly documented and may not be even sufficient in many cases to even depict the offset

In my case I used two images listed below and did some experiment with different drags

<a href="https://i.stack.imgur.com/HM2CG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HM2CG.png" alt="First Image"></a>

<a href="https://i.stack.imgur.com/dMg9M.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dMg9M.png" alt="Second Image"></a>

The event was created on 

<a href="https://www.facebook.com/events/901430313369669/" rel="nofollow noreferrer">https://www.facebook.com/events/901430313369669/</a>

<a href="https://i.stack.imgur.com/Y7lOw.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Y7lOw.png" alt="Event"></a>

And data collected was below for the above 2 images

<a href="https://i.stack.imgur.com/40UZC.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/40UZC.png" alt="Data collected"></a>

For the 2nd image you can see that whether i kept the image left aligned, right aligned or center aligned the offset were always 0. But the <code>left</code> was still calculated. This means facebook is not share the offset information correctly. It is most probably a bug based on observation from second image.

Also weird thing is the <code>-77</code>, <code>177</code> entries from the first image

<a href="https://i.stack.imgur.com/RwY2k.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RwY2k.png" alt="Offset"></a>

Hello I am trying to understand what offset_y means in facebooks graph API <a href="https://developers.facebook.com/docs/graph-api/reference/cover-photo/" rel="noreferrer">https://developers.facebook.com/docs/graph-api/reference/cover-photo/</a>.

<blockquote>
 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.
</blockquote>

I have tried using the solution in <a href="https://stackoverflow.com/questions/47238129/facebook-graph-api-offset-y-offset-x">facebook graph api: offset_y offset_x</a>,
but it does work.

for example, this event <a href="https://www.facebook.com/events/164312630996898/" rel="noreferrer">https://www.facebook.com/events/164312630996898/</a>. The event picture has a css top offset of -3px: 

<a href="https://i.stack.imgur.com/sPmW2.png" rel="noreferrer"><img src="https://i.stack.imgur.com/sPmW2.png" alt="enter image description here"></a>

In order to calculate this, I will attempt to use the method in <a href="https://stackoverflow.com/questions/47238129/facebook-graph-api-offset-y-offset-x">facebook graph api: offset_y offset_x</a>

The image is 500x622px (when resized to fit), the event image space is 500x262px. 622px-262px = 360px. using the facebook graph API (<a href="https://developers.facebook.com/tools/explorer?method=GET&amp;path=164312630996898%3Ffields%3Dcover&amp;version=v2.12" rel="noreferrer">https://developers.facebook.com/tools/explorer?method=GET&amp;path=164312630996898%3Ffields%3Dcover&amp;version=v2.12</a>) gives an offset-y of 9:
<a href="https://i.stack.imgur.com/6k7sX.png" rel="noreferrer"><img src="https://i.stack.imgur.com/6k7sX.png" alt="enter image description here"></a>

so 9% of 360px is, 32.4px, but the actual answer should be 3px.

any help would be greatly appreciated!

facebook graph api: understanding offset_y offset_x API

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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你好，我正在努力理解offset_y在facebook、图形API 中的含义。y_offset:当大于0%但小于100%时，封面照片垂直溢出。该值表示垂直手动偏移量(用户将照片垂直拖动以显示感兴趣的部分)为使照片适合空间所需的偏移量的百分比。我尝试过在中使用该解决方案，但它确实有效。例如，此事件。事件图片的css顶部偏移量为-3px：​​为了计算这一点，我将尝试在中使用该方法图像为500x622p

问facebook图api:理解offset_y offset_x API
EN

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