Performance: TIF vs. Vector layer

[Travis Kirstine GIS Tech]

Luca,
If you mean performance speed, there are a few things you can do:
1. Create a spatial index for all vector layer using a utility like shptree
(included with GDAL I think)
2. Create a tile index of all raster layer using a utility like gdaltindex
3. Create overview or zoom levels for raster images using gdaladdo

If you mean performance as the look of your map, you can just use the
MINSCALE and MAXSCALE in your layer definition in your mapfile to turn on
and off layers automatically i.e. turn off tif when image look grainy

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU]On
Behalf Of luca marletta
Sent: Monday, December 19, 2005 5:51 AM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: [UMN_MAPSERVER-USERS] Performance: TIF vs. Vector layer


Hi list,
I'm wondering if is convenient for a photogrammetric (1:2000 map) map
use the tif version or the shape from a DWG file. May question if for
performance because for quality I can get the same level with a good
tif due to the fact that zoom cannot be much deep.

Could someone give me an hint please?

thanks a lot
--
luca marletta