[gdal-dev] Raster Strategies Examples

[brian]

Edi,

Personaly I beleve gdalwarp is the wrong tool for the job, you already
have it all set up for mapserver so just use shp2img.



On Mon, 2010-08-02 at 17:14 +0200, Edi KARADUMI wrote:
> as you may know, i have very slow performance when i zoom out and im
> stucked here. As i have read i should make a copy of the tiles with
> reduced resolution. Merge the tiles together and use min/max scale to
> show different layers in different scales. the min/max scales i zoom
> in/out are 100/1200000. Now my questions are 
> 
> - How can i calculate the scale where i should create another layer of
> the tiles, or i shoud see it with some tests? 
> 
> - how much should be the resolution of the new layer? 
> 
> - is there any tools or program to merge the tiles? merging 6000 tiles
> with the gdalwarp by writing the command by myself is frustrating 
> 
> - how many tiles should i merge together to create the new layer? (how
> many tiles should have the new layer) i know that in each zoomscale
> its better to appear only one tile but i dont know how to calculate
> it 
> 
> - the tiles that i should merge are the originals or those with
> internal tiling and overviews?