[Thuban-devel] scaling

[Jan-Oliver Wagner]

On Sun, Jan 09, 2005 at 11:03:22AM -0500, Russell Nelson wrote:
> I think that the raster layer should get a chance to adjust the scale
> when viewport.py's set_view_transform() calculates it.  Terraserver
> tiles come in whatever resolution you want, so long as it's an integer
> power of two.  Since there is, in principle, no reason to treat raster
> layers specially, I think BaseLayer should have a method for tweaking
> the scale.  For example, Layer.adjust_scale().

this sounds interesting.
I wonder how other tools handle this aspect.

> If no one objects in principle, I'll prepare a patch for approval.

I must admit that I'd need to see the patch to better judge whether
it is a good idea to add this to Thuban core. The reason is that
I do not yet fully understand the consequences of such a change
and playing with it helps me to get a better impression.

Best

	Jan
-- 
Jan-Oliver Wagner               http://intevation.de/~jan/

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