[xep-support] area measurement with rx:pinpoint

[Geoff Levner]

We are trying to develop an interactive application using XEP as the 
formatting engine. If we have no way of associating Formatting Objects 
with areas on the screen, the "interactive" part will be very 
limited...

On 23 Feb 2005, at 16:43, David Tolpin wrote:

>>
>> We are looking for a way to determine the rectangular area (or areas) 
>> generated by a given Formatting Object.
>>
>> The only way I can see, for now, is to place <rx:pinpoint> objects 
>> before and after a given Formatting Object, then compare the 
>> positions of the pinpoints in the XEP intermediate output format. 
>> That will indeed give us the height of the area, but not the width: 
>> it seems that pinpoints ignore text alignment, and so are always 
>> placed on the left edge of the area.
>>
>> Does anybody out there know how to position a pinpoint on the right 
>> edge of an area? Or have a better way to do this?
>
> In many cases, the need to do that is a sign of wrong design. What are 
> you trying to accomplish?
>
> David

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