perl shapeobj values

[Simpson]

OK, I'll use the method Eric so kindly posted.

It would be nice to get at the column names from the shapeObj and be able to
getValue() by index or by column name.

Thanks for the info,
Drew.

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU]On
Behalf Of Lowell Filak
Sent: Friday, June 03, 2005 1:02 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] perl shapeobj values


The following message was sent by Simpson <asimpson at I-55.COM> on Fri, 3
Jun 2005 12:42:48 -0500.

> It looks like its of data type 'character' in the documentation at
> http://mapserver.gis.umn.edu/doc40/perlmapscript-reference.html and at
> http://mapserver.gis.umn.edu/doc44/swigmapscript-reference.html
>
> Is the shapeObj->{values} in Perl not the same as the one in PHP?
>
> Thanks,
> Drew.
>
>
> -----Original Message-----
> From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU]On
> Behalf Of Simpson
> Sent: Friday, June 03, 2005 9:36 AM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: Re: [UMN_MAPSERVER-USERS] perl shapeobj values
>
>
> There is a shapeObj 'values' attribute in documentation at
> http://mapserver.gis.umn.edu/doc44/phpmapscript-class-guide.html#ShapeObj
>
> Drew.
>
> -----Original Message-----
> From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU]On
> Behalf Of Eric Bridger
> Sent: Friday, June 03, 2005 6:10 AM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: Re: [UMN_MAPSERVER-USERS] perl shapeobj values
>
>
> No ''values' attribute of a shapeObj is exposed in the SWIG Mapscript API.
> Just numvalues and the getValue method.
>
> See: http://zcologia.com/mapserver/mapscript#shapeobj
>
> At 04:11 AM 06/03/2005 -0500, Simpson wrote:
> >Thanks, this very nice example will get the job done.
> >
> >Out of curiosity, how would one use the 'values' attribute of shapeObj.
> >I saw lots of PHP examples like $shape->values["Population"].
> >Dumper($shape->{values}) was giving me something cryptic like "\bless( do
> >{...},'_p2p_..')".
> >The server for this project has Mapserver 4.01 and the layers are
from SDE.
> >
> >Thanks again,
> >Drew.
> >
> >-----Original Message-----
> >From: Eric Bridger [mailto:eric at gomoos.org]
> >Sent: Thursday, June 02, 2005 9:25 PM
> >To: Simpson; MAPSERVER-USERS at lists.umn.edu
> >Subject: Re: [UMN_MAPSERVER-USERS] perl shapeobj values
> >
> >
> >
> >At 07:51 PM 06/02/2005 -0500, Simpson wrote:
> >>Hello,
> >>
> >>Could someone please tell me how to use the values attribute of shapeObj
> in
> >>Perl.
> >>I saw lots of examples in PHP, but no Perls.
> >>
> >>Thanks,
> >>Drew.
> >
> >Here's some perl code.
> >
> >if ( !$layerObj->queryByPoint( $map, $click, $mapscript::MS_MULTIPLE,
0 ) )
> >{
> >            my $rslts = $layerObj->getResults();
> >            if ($rslts)
> >            {
> >                for (my $i = 0; $i < $rslts->{numresults}; $i++)
> >                {
> >                    my $rslt = $layerObj->getResult($i);
> >                    my $qid = undef;
> >                    $qid = $rslt->{shapeindex};
> >                    my $tid = $rslt->{tileindex};
> >                    $layerObj->open();
> >                    my $qshape = $layerObj->getFeature($qid, $tid);
> >                    if($qshape)
> >                    {
> >                        for(my $i = 0; $i < $qshape->{numvalues}; $i++)
> >                        {
> >                            my $val = $qshape->getValue($i);
> >                            my $col =  $layerObj->getItem($i);
> >                            # do something with them.
> >                        }
> >
> >                    }
> >                    $layerObj->close();
> >                }# end for results
> >            }
> >        } # end if queryByPoint
> >
> >
> >See also:  http://zcologia.com/mapserver/querying-howto

Drew,

That may be my bad. Because there are much better ways to retrieve the
field names and values from the shape I probably should not have even
mentioned the 'values' member in the documentation.
For me 'values' comes back blank and could mean it requires a swig
typemap just to work correctly.

Lowell