[Mapserver-users] setExpression difficulty

[Lowell Filak]

What is $soilLayer->{classitem} set to?
Lowell

The following message was sent by Nick Petersen-Bergeron
<bergeron at zedxinc.com> on Wed, 15 Oct 2003 09:37:47 -0400.

> Well, I'm migrating away from a static mapfile format that I used 
> previously with the same information that was contained in $key, and it 
> worked fine then.
> 
> Nick
> 
> At 09:20 AM 10/15/2003 -0400, Lowell Filak wrote:
> >If you create a static mapfile, for testing purposes, using that
> >expression do you get the correct result or does it still appear that
> >the expression is not set?
> >Lowell
> >
> >The following message was sent by Nick Petersen-Bergeron
> ><bergeron at zedxinc.com> on Wed, 15 Oct 2003 09:13:52 -0400.
> >
> > > Yup.  It gets rid of the error, but I think it doesn't actually
set the
> > > expression.
> > >
> > > Nick
> > >
> > > At 09:02 AM 10/15/2003 -0400, Lowell Filak wrote:
> > > >Have you already tried '$tempClass->setExpression("\"$key\"");' ?
> > > >Lowell
> > > >
> > > >The following message was sent by Nick Petersen-Bergeron
> > > ><bergeron at zedxinc.com> on Tue, 14 Oct 2003 14:16:06 -0400.
> > > >
> > > > > I'm trying to dynamically create classes in a layer using Perl
> > > >mapscript 3.6.
> > > > >
> > > > > Here's my code:
> > > > >
> > > > > foreach $key (sort keys %colors) {
> > > > >                  my $tempClass = new classObj($soilLayer);
> > > > >                  $tempClass->setExpression("$key");
> > > > >                  $tempClass->{name} = $key;
> > > > >                  $tempClass->{size}=5;
> > > > >                  my $r = $colors{$key}{'R'};my $g =
> >$colors{$key}{'G'};my
> > > > > $b = $colors{$key}{'B'};
> > > > >
> > > > >                  my $rgb = 0;
> > > > >                  foreach $clr ($r,$g,$b) {
> > > > >                          $rgb <<=8;
> > > > >                          $rgb += $clr;
> > > > >                  }
> > > > >                  warn "$rgb\n";
> > > > >                  $tempClass->{color} = $rgb;
> > > > >          }
> > > > >
> > > > > $key is essentially the datum that I am looking to assign the
> >different
> > > > > shapes to different classes by.  It is set up as the classitem
in the
> > > > > layer.  Now, the problem is that when I try and use setExpression,
> >I get
> > > > > the following error:
> > > > >
> > > > > getSymbol(): Symbol definition error. (083028):(237)
> > > > >
> > > > > The first number(083028) is the piece of datum I'm passing in,
> >$key.  The
> > > > > second is the last non-end line of the mapfile.  Any ideas?
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Nick Petersen-Bergeron
> > > > > System Administrator
> > > > >
> > > > > ZedX Inc.
> > > > > 369 Rolling Ridge Drive
> > > > > Bellefonte, PA. 16823
> > > > >
> > > > > _______________________________________________
> > > > > Mapserver-users mailing list
> > > > > Mapserver-users at lists.gis.umn.edu
> > > > > http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
> > >
> > >