[mapserver-users] getting the scale in a map file at runtime

[Richard Greenwood]

On Fri, Jun 3, 2022 at 8:00 AM Jörg Thomsen (WhereGroup) <
joerg.thomsen at wheregroup.com> wrote:

> Hi,
>
> what about:
> https://mapserver.org/mapfile/template.html#image-geometry
> -> scaledenom
>
> Doesn't work?
>

Thanks, but no, it does not work. I'm trying to access the scale in a map
file, not in a template. Using square brackets [variable] is interpreted as
a field name in the data, not as a runtime variable. For example:
  CLASS
    STYLE
      GEOMTRANSFORM (generalize([shape], [scaledenom]))
      COLOR "#2AB1F7"
    END
  END
returns the error:
  DBASE file error. Item 'scaledenom' not found.



>
> Jörg
>
>
> Am 03.06.22 um 15:45 schrieb Richard Greenwood:
> > Can I get the current scale for use in a map file at runtime.
> > Specifically, I'd like to use it in a geotransform something like:
> >     GEOMTRANSFORM (generalize([shape], [scale]))
> > or more likely for use in an expression:
> >     GEOMTRANSFORM (generalize([shape], [scale] / 100))
> > Thanks
> > --
> > Richard W. Greenwood
> > www.greenwoodmap.com <http://www.greenwoodmap.com>
> >
> > _______________________________________________
> > MapServer-users mailing list
> > MapServer-users at lists.osgeo.org
> > https://lists.osgeo.org/mailman/listinfo/mapserver-users
>
>
> --
> Viele Grüße,
> Jörg Thomsen
>
> ---------------------------------------------
> Aufwind durch Wissen!
> Jetzt neu: Web-Seminare und Online-Schulungen
> bei der www.foss-academy.com
> ---------------------------------------------
>
> Jörg Thomsen
> WhereGroup GmbH
> Bundesallee 23
> 10717 Berlin
> Germany
>
> Tel: +49 (0)30 / 5130 278 74
> Fax: +49 (0)30 / 5130 278 11
>
> joerg.thomsen at wheregroup.com
> www.wheregroup.com
>
> Geschäftsführer:
> Olaf Knopp, Peter Stamm
> Amtsgericht Bonn, HRB 9885
>
> -------------------------------
> Folgen Sie der WhereGroup auf twitter: http://twitter.com/WhereGroup_com
> _______________________________________________
> MapServer-users mailing list
> MapServer-users at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/mapserver-users
>


-- 
Richard W. Greenwood
www.greenwoodmap.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/mapserver-users/attachments/20220603/758bf2c0/attachment.htm>