[tei-council] surfaces, surfaceGrps, etc. [was : minutes/release deadline]
lou.burnard at retired.ox.ac.uk
Sun Nov 20 09:38:25 EST 2011
... though I have just noticed that the definition for @points actually
says it "identifies a non-rectangular area *within the bounding box
specified by the other attributes* by specifying
a series of pairs of numbers ... "
I would like to rephrase that as "identifies a polygon of any shape
using the co-ordinate system specied by its parent surface" for
consistency with the rest.
Note that you could use @points to define a rectangle of course.
On 20/11/11 14:28, Lou Burnard wrote:
> But we do explicitly allow a rectangular zone which is not included
> within the bounds of its parent surface. The only restrictions are that
> the zone must be defined using the same coord system as the surface. And
> that if the zone contains a graphic, the zone must define the whole
> space represented in the graphic. So why should non-rectangular zones be
> any different ?
> But I agree that we dont need @points on<surface>. It should probably
> be taken out of att.coordinated and locally defined.
> On 20/11/11 11:28, Laurent Romary wrote:
>> That's my understanding as well, even if I think I am missing some of the details here (I have not managed to conceptualize things, which is needed for me to think...)
>> Le 20 nov. 2011 à 12:12, Sebastian Rahtz a écrit :
>>> On 20 Nov 2011, at 00:27, Martin Holmes wrote:
>>>> I think we agreed that since<surface> is always establishing a
>>>> coordinate system, and a coordinate system must always be rectangular,
>>>> we don't need @points on<surface>, only on<zone>.
>>>> That gives us the rather odd possibility of a non-rectangular<zone>
>>>> which contains a<surface> that must have a rectangular coordinate
>>>> system, though.
>>> I'd rather think of<surface> defining the extent of a two-dimensional
>>> grid, and<zone> as describing polygon areas within that. Then my
>>> head does not hurt so much.
>>> Stormageddon Rahtz
>>> Head of Information and Support Group, Oxford University Computing Services
>>> 13 Banbury Road, Oxford OX2 6NN. Phone +44 1865 283431
>>> Sólo le pido a Dios
>>> que el futuro no me sea indiferente
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>> Laurent Romary
>> INRIA& HUB-IDSL
>> laurent.romary at inria.fr
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