controling the number of symbols displayed using php mapscript

[Jeff Portwine]

I don't know about controlling the number of them specifically, but you can
set the "buffer" value and the "mindistance" value to keep them from
cluttering.   The BUFFER value tells how many pixels you want to be between
two symbols, and the MINDISTANCE value tells how many pixels you want
between instances of the same symbol.    So if you set:

    BUFFER  5
    MINDISTANCE 300

You will see at least 5 pixels separating two symbols in that layer, and you
will see at least
300 pixels between instances of the same symbol... by instances of the same
symbol I mean for example if you are labeling streets, you won't see a
particular street name twice right next too each other, there will be at
least 300 pixels between the two istances of that street name.

Hope that helps,
Jeff

----- Original Message -----
From: "Arunoday Chatterjee" <arunoday_chatterjee at REDIFFMAIL.COM>
To: <MAPSERVER-USERS at LISTS.UMN.EDU>
Sent: Friday, April 22, 2005 12:44 AM
Subject: [UMN_MAPSERVER-USERS] controling the number of symbols displayed
using php mapscript


> I'm displaying symbols for interstate highways and too many of them are
> coming up and cluttering the map, how do i control this. Any help would be
> highly appreciated. I'm using php mapscript 4.2.3.
>