tiling shape files, or shptree
Schuyler Erle
schuyler at NOCAT.NET
Tue Apr 26 13:38:19 PDT 2005
* On 26-Apr-2005 at 1:24PM PDT, Dylan Beaudette said:
>
> for example: i have a statewide local roads shapefile (TIGER 2000). this
> layer is not enabled until the user is zoomed in quite a bit. will i get
> faster map rendering times if i :
>
> 1. tile the statewide coverage into small rectangles
>
> 2. use shptree to create a spatial index
>
> 3. do both
You want Steve Woodbridge's shp2tile. Use the quadtree mode, works
great.
http://swoodbridge.com/tools/
Then use ogrtindex to generate a tile index for MapServer. Running
shptree on both the tiles and the index can't hurt.
SDE
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