[Xastir] [tiling] reading tiles slow

[Piotr Gluszenia Slawinski]

wouldn't it be easier to just switch ... xastir projection
while osm maps are used?

-- 

On Mon, 16 Aug 2010, Jerry Dunmire wrote:

> All the ones I've looked at require some sort of transformation. It
> all depends on the projection used to generate the raster map. I'm
> starting to look at Terraserver tiles now and the transformation
> from/to UTM will be a bear. There's a library (Proj.4), so that's
> where I'll start.
>
> ...jerry
>
>
> On Mon, Aug 16, 2010 at 5:52 PM, Jason KG4WSV <kg4wsv at gmail.com> wrote:
>> On Fri, Aug 13, 2010 at 3:36 PM, Jerry Dunmire <jerry at dunmire.org> wrote:
>>> The root of
>>> the problem is that projection mapping that must occur between the
>>> Mercator projection of OSM tiles and the 'un-projected' Xastir view.
>>> Each pixel requires a multiple trig operations.
>>
>> Is this something OSM-specific, or does it apply to all xastir raster maps?
>>
>> -Jason
>> kg4wsv
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