Add support for rank-N TypedArrayProperties about alembic

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It would have to be more than just the rank.  The individual dimension sizes 
would need to be specified as well.

Currently the user doesn't need to specify the dimension because it can be 
figured out based on the data that is sent in.

When specifying more than rank 1 data, should we expect them to specify all 
dimensions, or do we have them specify all but the last one?

The original use-case for this request was to be able to represent and detect 
data types like color3d[2] which is important for many renderers.

Original comment by miller.lucas on 23 Nov 2010 at 7:00

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Ah, yeah, you'd need to set each new rank's value as well, though you could 
default to whatever the Dimension value is for the 0th rank.  It would be weird 
to have, eg, a color[2] where the first is a color4 and the second is a 
color[3].

Original comment by [email protected] on 24 Nov 2010 at 12:06

[GoogleCodeExporter]

Writing this kind of data is already possible without any code change, since 
things like C3fArraySample can take a Dimensions argument.

I'm still investigating reading.

Original comment by miller.lucas on 24 Nov 2010 at 1:14

[GoogleCodeExporter]

It's possible to detect this as well.

I'll check in a test to show how.

Original comment by miller.lucas on 24 Nov 2010 at 1:27

[GoogleCodeExporter]

A very course example is here:

http://code.google.com/r/millerlucas-dev/source/diff?spec=svnfd90e625871ba310ffa
378c72d1f97452ffb475f&r=fd90e625871ba310ffa378c72d1f97452ffb475f&format=side&pat
h=/lib/Alembic/Abc/Tests/ArrayPropertyTest.cpp

Original comment by miller.lucas on 24 Nov 2010 at 1:51

• Changed state: Invalid