Mapserver CGI or C API question

[ANDY CANFIELD]

Tom,
I already have XML parsing built into the app for some other stuff it does
so that sounds like a good solution to me. Can I run that against a regular
mapfile with regular layers or do I need to set up wms layers?
Thanks,
Andy

>From: "Kralidis,Tom [Burlington]" <Tom.Kralidis at ec.gc.ca>
>To: "ANDY CANFIELD"
><andy_canfield at HOTMAIL.COM>,<MAPSERVER-USERS at LISTS.UMN.EDU>
>Subject: RE: [UMN_MAPSERVER-USERS] Mapserver CGI or C API question
>Date: Fri, 29 Oct 2004 17:13:12 -0400
>
>
>
> > -----Original Message-----
> > From: UMN MapServer Users List
> > [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of ANDY CANFIELD
> > Sent: Friday, 29 October, 2004 17:06
> > To: MAPSERVER-USERS at LISTS.UMN.EDU
> > Subject: [UMN_MAPSERVER-USERS] Mapserver CGI or C API question
> >
> >
> > For anyone who may know,
> >     I am still working on my wireless app for using Mapserver
> > from a Nextel phone. So far so good except I'm starting to
> > run into some things I don't think the CGI was designed to
> > do. At least not per the docs. Specifically I need search
> > functionality. I want to be able to pass in a layer, an
> > attribute and a value to search for and get back the bounding
> > rectangle of all the features returned. I'm pretty sure the
> > CGI won't do that. Correct me if I'm wrong so I don't waste
> > time please. So what I'd like to do is write my own CGI that
> > does return this info. So these are my questions:
> >
>
>This sounds like a job for a MapServer OGC:WFS GetFeature request with
>filter, i.e.:
>
>http://host/cgi-bin/mapserv?map=[mapfile]&version=1.0.0&service=WFS&requ
>est=GetFeature&typename=[layername]&filter<Filter><PropertyIsEqualTo><Pr
>opertyName>[field_name]</PropertyName><Literal>[attribute_value]</Litera
>l></PropertyIsEqualTo></Filter>&
>
>(fill in values in "[]" with your own).
>
>By definition, this will returned to you all matching features encoded
>as a GML (XML) document.  The opening information of this document will
>provided the bounding box of all features returned.
>
>You can have some middleware which connects to the WFS, makes the
>request, then processes the info accordingly.
>
>Hope this helps.
>
>..Tom
>
>
> > When you search a layer using mapserver's C api and it is
> > searching a shapefile and you want to search the whole
> > shapefile regardless of bounds is there any special searching
> > that goes on or is it a straight loop through all the records
> > in the shape file looking for matches in the attribute field
> > specified? IE does it load a b-tree in memory and then search
> > the tree or anything like that?
> >
> > Thanks,
> > Andy
> >
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