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Is a selection of t a point or a duration? #2271

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azaroth42 opened this issue Jan 30, 2024 · 2 comments
Open

Is a selection of t a point or a duration? #2271

azaroth42 opened this issue Jan 30, 2024 · 2 comments
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3d A/V presentation

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@azaroth42
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azaroth42 commented Jan 30, 2024 •
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According to the PointSelector definition, the value of t is a floating point number of seconds. It thus selects an instant in time with a 0 duration.

The Presentation API says:

A segment of the Canvas’s area using the media fragment syntax of #xywh= for spatial regions, and/or #t= for temporal segments.

The definition of t in media fragments:

denoted by the name t, and specified as an interval with a begin time and an end time

This led to confusion in #2253 as to how to select a point over time, and we should fix it.
@azaroth42
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Eds to discuss and come back with a proposal

@tomcrane tomcrane mentioned this issue Feb 1, 2024
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@azaroth42
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Will be solved by #2280 if approved

@azaroth42 azaroth42 mentioned this issue Jun 7, 2024
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