# Get absolute coordinates a child shape

### Question

• Sorry for my English.

A PowerPoint slide contains a group shape (grpSp) with following coordinates:

``````<a:off y="2058985" x="244799"/>
<a:ext cy="2264343" cx="7118946"/>
<a:chOff y="2058986" x="244799"/>
<a:chExt cy="1942187" cx="5727249"/>``````

This group shape contains a child shape (sp) with following coordinates:

``````<a:off y="3084512" x="244799"/>
<a:ext cy="916661" cx="1710237"/>``````

After ungrouping the child shape contains follow coordinates:

``````<a:off y="2058986" x="244799"/>
<a:ext cy="1064224" cx="2545581"/>``````

As you can see coordinates are changed - converting to absolute coordinate on the slide.

I cannot programmatically to make the formula to get these absolutely coordinates. Which formula should I use to convert a child shape's coordinates to absolute as shown in the example (cx="1710237" => "2545581")?

vendredi 8 juin 2018 21:50

### Réponses

As far as I know, <a:ext>:cx is the  width of the shape and <a:off>:x is the x-coordinates of the shape. It should not change if we does not change the size of the shape.

And I also failed to reproduce your issue based on current description.

I group two shapes to a group. Then I checked their <x:xfrm>.

The group is

```<a:off x="2325950" y="896645" />
<a:ext cx="1518081" cy="2201662" />
<a:chOff x="2325950" y="896645" />
<a:chExt cx="1518081" cy="2201662" />```

One of child shape is

```<a:off x="2325950" y="896645" />
<a:ext cx="1518081" cy="816745" />```

After ungrouping without anythings else to do, the<x:xfrm> for the shape is

```<a:off x="2325950" y="896645" />
<a:ext cx="1518081" cy="816745" />```

Every thing does not change.

And after moving the shape location, the <x:xfrm> for the shape now is

```<a:off x="754603" y="2059619" />
<a:ext cx="1518081" cy="816745" />```

We can see that <a:off> changed and <a:ext> all remains same since the size does not changed.

I would suggest you details your operation and share a presentation file in case of any misunderstanding,

Best Regards,

Terry

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• Marqué comme réponse lundi 9 juillet 2018 21:44
lundi 11 juin 2018 03:22