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w3c / imsc-tests

IMSC test suites
https://w3c.github.io/imsc-tests/
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position003.ttml uses height-relative units for horizontal lengths, and vice-versa #95

Open palemieux opened 3 years ago

palemieux commented 3 years ago

https://github.com/w3c/imsc-tests/blob/e0213a2815dd4690c1458550adabc458f09a7d77/imsc1_1/ttml/position/position003.ttml#L32

https://github.com/w3c/imsc-tests/blob/e0213a2815dd4690c1458550adabc458f09a7d77/imsc1_1/ttml/position/position003.ttml#L16

https://github.com/w3c/imsc-tests/blob/e0213a2815dd4690c1458550adabc458f09a7d77/imsc1_1/ttml/position/position003.ttml#L36

nigelmegitt commented 3 years ago

@palemieux I think those tests are valid as is; it is permitted to do this. Is the problem here that there are no similar tests where height relative units are used for vertical positions and width relative units are used for horizontal positions? Perhaps it makes sense to add a test for that case rather than change this one.

palemieux commented 3 years ago

@nigelmegitt IMSC 1.1, 7.2.9 prohibits rh in horizontal length components, and rw in vertical length components.

nigelmegitt commented 3 years ago

Ah, thanks for that @palemieux , distant bells are ringing in my memory about discussing this. I agree this test is broken and that the h/v length units are the wrong way around. Sorry for the mistake before.