Slow Layer Display
Arun K Chanumalla
arun_kanth at YAHOO.COM
Mon Nov 21 18:14:56 EST 2005
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
is there a documentation avilable for that on the
mapserver web site.
Do you think 7-8 mins of time is reasonable for the
with 4344711 records in the .dbf file.?
Thanks for trying to help me
--- Ethan Alpert <ealpert at DIGITALGLOBE.COM> 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?
> -----Original Message-----
> From: UMN MapServer Users List
> [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
> Behalf Of Arun K Chanumalla
> Sent: Monday, November 21, 2005 3:31 PM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> 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
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