If you're using an SQL query in your map file and it's a WMS/WFS (maybe
others) service, you can determine scale from !BOX!, %WIDTH%, %HEIGHT%.
To add to your question, I'd be curious to know does a resource exist
that lists all '[var]' resources available to a map file at run time?
On 6/3/22 08:00, Richard Greenwood wrote:
On Fri, Jun 3, 2022 at 8:43 AM Jörg Thomsen (WhereGroup)
<joerg.thom...@wheregroup.com <mailto:joerg.thom...@wheregroup.com>> wrote:
Richard,
sorry, yes, sure...
Perhaps you can use scaletoken? It's not the same as you are searching
for, but you could define a set of tolerance-values for different
scales.
Yes - I had not thought of that. It might be a better way than what I
was trying to do. Thank you!
Am 03.06.22 um 16:21 schrieb Richard Greenwood:
>
>
> On Fri, Jun 3, 2022 at 8:00 AM Jörg Thomsen (WhereGroup)
> <joerg.thom...@wheregroup.com
<mailto:joerg.thom...@wheregroup.com>
<mailto:joerg.thom...@wheregroup.com
<mailto:joerg.thom...@wheregroup.com>>> wrote:
>
> Hi,
>
> what about:
> https://mapserver.org/mapfile/template.html#image-geometry
<https://mapserver.org/mapfile/template.html#image-geometry>
> <https://mapserver.org/mapfile/template.html#image-geometry
<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>
<http://www.greenwoodmap.com <http://www.greenwoodmap.com>>
> <http://www.greenwoodmap.com <http://www.greenwoodmap.com>
<http://www.greenwoodmap.com <http://www.greenwoodmap.com>>>
> >
> > _______________________________________________
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>
> --
> Viele Grüße,
> Jörg Thomsen
>
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> --
> Richard W. Greenwood
> www.greenwoodmap.com <http://www.greenwoodmap.com>
<http://www.greenwoodmap.com <http://www.greenwoodmap.com>>
--
Viele Grüße,
Jörg Thomsen
---------------------------------------------
Aufwind durch Wissen!
Jetzt neu: Web-Seminare und Online-Schulungen
bei der www.foss-academy.com <http://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.thom...@wheregroup.com <mailto:joerg.thom...@wheregroup.com>
www.wheregroup.com <http://www.wheregroup.com>
Geschäftsführer:
Olaf Knopp, Peter Stamm
Amtsgericht Bonn, HRB 9885
-------------------------------
Folgen Sie der WhereGroup auf twitter:
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www.greenwoodmap.com <http://www.greenwoodmap.com>
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