The .qix file will only help when zooming in to smaller areas. Are you really able to see all 4344711 records in one display? I doubt it which is why I suggested MINSCALE/MAXSCALE. 7-8 minutes could be fast or slow depends on your hardward it's a *LOT* of records and is more features than I ever show at once.
When I have such large sets I only display them at scales that make sense. -e -----Original Message----- From: UMN MapServer Users List [mailto:[EMAIL PROTECTED] On Behalf Of Arun K Chanumalla Sent: Monday, November 21, 2005 4:15 PM To: [email protected] Subject: Re: [UMN_MAPSERVER-USERS] Slow Layer Display Hi Ethan, Thanks for a quick turn around. We are not displaying any shapefiles within a scale limit and hence there is no scale information in the map files.we are just trying to display the shapefiles as they are. how do i generate a spatial index (.qix) for the shape file..? is there a documentation avilable for that on the mapserver web site. Do you think 7-8 mins of time is reasonable for the shape file with 4344711 records in the .dbf file.? Thanks for trying to help me Arun --- Ethan Alpert <[EMAIL PROTECTED]> wrote: > Check out generating a spatial index (.qix) for your shapefile using > shptree. This will speed up displaying when zoomed > in to a subset. > > Also check out MAXSCALE and MINSCALE to make sure > you're only displaying > the shapefile when it makes sense. With such a large > number of records > does it make sense to always display the layer? > > -e > > -----Original Message----- > From: UMN MapServer Users List [mailto:[EMAIL PROTECTED] > On Behalf Of Arun K Chanumalla > Sent: Monday, November 21, 2005 3:31 PM > To: [email protected] > Subject: [UMN_MAPSERVER-USERS] Slow Layer Display > > > Hello Everyone, > iam a newbie to mapserver and this is my > first post.i have an elevation data shape file which > has as many as > 4344711 records in the .dbf file.This shape file is > taking 7--8 mins to > get completely displayed on the browser. > > iam assuming that delay in display time is due to > the large numebr of > records in the .dbf file. > > is there a way to speed up the process of displaying > the shapefile. iam > using PHP and html. > > All your suggestions are welcome > > Regards > Arun > __________________________________ Yahoo! FareChase: Search multiple travel sites in one click. http://farechase.yahoo.com
