[mapserver-users] Classifying layers from data in a DB

[Paul Ramsey]

Or, put *all* your data in the database, attribute and spatial together.
Then the problem collapses :)

"Lowell.Filak" wrote:
> 
> If your using mapscript already then you can do the math/concatenation
> required for the reclassification directly in the scripting language and
> then apply that value to a temporary field in the dbf and display from
> that, or create several temporary subsets and display from those using
> either a temporary shapefile or just a selection-set from a layer.
> HTH
> Lowell F.
> 
> On Thu, 25 Jul 2002, Vinko Vrsalovic wrote:
> 
> > On Thu, Jul 25, 2002 at 11:12:14AM -0400, Lowell.Filak wrote:
> > > Usually the simplest is the best to start with.
> > > If you already have a way to do option 1 that would result in all the data
> > > being in a single file/place and would cut down on the number of places
> > > where things could break. After that is working you could do option 2 or
> > > use mapscript to access the Oracle db directly if the Oracle db is where
> > > things are updated.
> >
> > Can I directly through mapscript classify layers from data not present
> > in the shapefile? With what methods must i experiment with?
> >
> > I'm already using Mapscript, but i thought (or didn't see how) to
> > classify from data sets not present in the shapefile.
> >
> > If that's possible, I'd be very relieved! :-)
> >
> >
> > Thanks,
> >
> > > On Thu, 25 Jul 2002, Vinko Vrsalovic wrote:
> > >
> > > >
> > > > Hi!
> > > >
> > > >   I need some advice about what might be the right path to achieve
> > > >   this:
> > > >
> > > >   I have some layers in shapefiles, and I need to classify them
> > > >   from data that comes from an Oracle database (without Spatial
> > > >   extension).
> > > >
> > > >   I've thought about these solutions:
> > > >
> > > >   1.- Grab the data, and add column(s) to the dbf file of the
> > > >   shape, then set the expression and classitem of the layer
> > > >   according to the new column(s)
> >
> >

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