Re: [Lib2geom-devel] Question about the lib2geom coordinate system.

[mgsloan <mg...@gm...>]

I think it's much more pure to not include a matrix with all objects.  This
has actually given me an idea - a Transformed<> template! may be useful in
inkscape, anyway.  The main reason for this is that it removes matrices and
related code from seperate concepts, like paths , curves, etc.  Another
reason is possible future optimizations - immutable objects might memoize
conversions, for example.

On 4/17/07, MenTaLguY <me...@ry...> wrote:
>
> On Tue, 17 Apr 2007 08:35:12 -0700, "Sunburned Surveyor" <
> sun...@gm...> wrote:
> > For a spatial index to work won't I need to have geometries on a common
> > coordinate system?
>
> Yes.  Each spatial index would need to have its own "global" coordinate
> system, and either all geometric objects in the index would be assumed to be
> in that coordinate system, or each object's entry in the index would need to
> be accompanied by a transformation from the object's coordinate system to
> the index's.
>
> I'm not sure which is better really.
>
> -mental
>
>
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