[mapserver-users] using Mapscript to pan around a querymap

[Lowell Filak]

I believe Steve is correct. You will need to select the point by attribute first then read the coordinates for the point and buffer them and use that buffer as your new mapextent. From that you can create a drawQuery map that can be panned & etc.
This link has example code regarding the DBFInfo Object:
http://mapserver.gis.umn.edu/doc/perlmapscript-reference.html#dbfinfo
This link has example code regarding reading the extents for a selected shape:
http://mapserver.gis.umn.edu/doc/perlmapscript-reference.html#shapefileobj
Lowell F.

The following message was sent by laurentiu lionte <llionte at yahoo.com> on Fri, 19 Apr 2002 23:24:18 -0700 (PDT).

> 
>  I need to locate a point using itemquerymap (does anybody know 
> another  method?).
>  Then I need to pan around this location. This is a basic functionality
>  for any GIS-like application. According to this, I need to obtain the selected point coordinates 
> (at least), or,  for more than one selected point ,the extent or extent center of all
>  selected features.
> Stephen Woodbridge says that most people do this using mapscript. OK, can anybody be more
> specific? I need some pieces of code, if this is possible or more substantial advices.
> 
> Thanks for any help.
> 
> Lawrence
> 
> 
> 
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