[mapserver-users] Thematic points by database values

[Stephen Woodbridge]

I don't think so. You might add it to Bugzilla as a enhancement request.
Probably the easiest thing to do is write a Perl/C/whatever script that
adds a column to your dbf file and populates it with the a precalcuated
value.


-Steve

"Martin, Daniel" wrote:
> 
> Is there any way to use an expression with LABELSIZEITEM?  I tried, but
> Mapserver choked on it.
> 
> Thanks,
> Dan
> 
> -----Original Message-----
> From: Stephen Woodbridge [mailto:woodbri at swoodbridge.com]
> Sent: Friday, June 14, 2002 2:11 PM
> To: Martin, Daniel
> Cc: mapserver-users at lists.gis.umn.edu
> Subject: Re: [mapserver-users] Thematic points by database values
> 
> Martin, the value of "Total" if used for LABELSIZEITEM must be in pixels
> for font height.
> 
> -Steve
> 
> "Martin, Daniel" wrote:
> >
> > Lowell mentions Mapscript, and I thank him for the reply.  Unfortunately,
> > I'm in the pure CGI world.
> >
> > Steve, thanks for your suggestion.  I tried it, but for some reason my
> > points don't seem to be resizing based on the LABALSIZEITEM.  Or if they
> do,
> > it's so small it's unnoticeable.
> >
> > Here's my Layer:
> >
> > LAYER
> >   NAME "Outsources YTD 2002"
> >   TYPE POINT
> >   CONNECTIONTYPE OGR
> >   CONNECTION "\GISData\Outsources.TAB"
> >   STATUS OFF
> >   LABELSIZEITEM "Total"
> >   CLASS
> >     NAME 'Outsources YTD 2002 Through April 30'
> >     COLOR -1 -1 -1
> >     TEXT "."
> >     LABEL
> >       POSITION cc
> >       TYPE TRUETYPE
> >       FONT arial
> >       FORCE true
> >       COLOR 255 0 0
> >       OUTLINECOLOR 0 0 0
> >       ANTIALIAS true
> >       MINSIZE 25
> >       MAXSIZE 300
> >     END
> >   END
> > END
> >
> > Any Ideas why it always seems to be the MINSIZE, no matter what the value
> of
> > the LABELSIZEITEM?  I should mention the values are going to be around the
> > range of 1-15.
> >
> > Thanks,
> > Dan Martin
> >
> > -----Original Message-----
> > From: Stephen Woodbridge [mailto:woodbri at swoodbridge.com]
> > Sent: Friday, June 14, 2002 10:32 AM
> > To: Martin, Daniel
> > Cc: mapserver-users at lists.gis.umn.edu
> > Subject: Re: [mapserver-users] Thematic points by database values
> >
> > You might try something like LABELSIZEITEM and then use a truetype font
> > to draw the symbol. If you need to label the item also, the dupicate the
> > LAYER and make it TYPE ANNOTATION to draw the label.
> >
> > -Steve
> >
> > "Martin, Daniel" wrote:
> > >
> > > I am trying to add thematic points by a value in the database.  Every
> > > example I've seen involves the use of many classes.  I'd rather avoid
> > that,
> > > because my point values have an undetermined range, and change often.
> > >
> > > I'm looking for something along the lines of:
> > >
> > > CLASS
> > >  SIZE 4 + MyDbaseItem
> > >  ...
> > > END
> > >
> > > But, I haven't found anything that works.  Is it possible to do this?
> > >
> > > Thanks,
> > > Dan Martin