[OpenLayers-Users] How can I build a form for Querying a Layer?

[Schweitzer, Peter]

My solution is to a somewhat larger problem--the user chooses from a
wide variety of place names using a hierarchical browse that is
brought into view using a sliding jQuery panel.  This is at
http://mrdata.usgs.gov/general/map.html and is invoked by clicking the
green box labeled "PLACE NAMES"

The data infrastructure behind that is composed of a PostgreSQL table
containing the area centroids, a formal thesaurus containing the place
names themselves, the latter accessed using a simple web service
written in PHP.  You might be able to do this using a static JSON
file, though, if you have far fewer places.  The Javascript code at
http://mrdata.usgs.gov/general/map.js shows how I call the OpenLayers
function to zoom to the appropriate position.  The actual zoom level
for each area has been stored in the database along with the
centroids.

So this problem is a mixture of data and code.  You probably can
rearrange the code and data in many different ways, different than I
did.

Peter

On Mon, Jul 14, 2014 at 6:57 AM, KhunSanAung <khunsanaung.gis at gmail.com> wrote:
> Hi All,
>
> I'd like to build an map HTML page where I will have a list box populated by
> the feature name from a specific layer. The list should automatically come
> from the layer.
> example the layer is USA State and  the name of each state are in the list
> box.
>
> When user select an item from the listbox, the map will zoom to that
> feature.
> example when user select 'California'  from the list box, the map will
> automatically zoom to 'California' state.
>
> Could someone please guide me how can I do it?
>
> Thank you very much in advance for any idea.
>
> --
> Have a nice day!
> --
>
> Mr. Khun San Aung
>
>
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-- 
Peter N. Schweitzer (U.S. Geological Survey, Reston, VA 20192)
(703) 648-6533  email: pschweitzer at usgs.gov
http://geology.usgs.gov/peter/