zooming to and displaying selected features

[Stephen Lime]

You should be able to set mapext=shapes and that tells the MapServer to generate
and extent based on the result set before creating a querymap. Of course, you could
do it in MapScript as well but why bother.

Steve

Stephen Lime
Internet Applications Analyst

Minnesota DNR
500 Lafayette Road
St. Paul, MN 55155
651-297-2937

>>> "Michael Anderson" <m_anderson14 at hotmail.com> 04/05/01 03:26PM >>>
Hello,

We are trying to send MapServer an item query and return a map that displays 
only the selected features and is zoomed to their extent. We have a 
solution, but it's not very clean.

Here's what we are doing. We submit an itemnquery request and use a template 
to return the extent of each returned feature. Then we have JavaScript loop 
through the features and create a map extent that covers all of them. This 
extent is included in an itemnquerymap request to display just those 
features at the right extent.

Does anyone know of a better way, hopefully using MapScript?

Thanks.

Mike Anderson
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