[mapserver-users] RE null value renders in pie chart

[Lime, Steve D (DNR)]

How about using a regex instead:

CLASSITEM 'cri'
CLASS
  EXPRESSION /./
  ...
END

Steve

From: mapserver-users-bounces at lists.osgeo.org [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Steve.Toutant at inspq.qc.ca
Sent: Thursday, January 03, 2013 10:57 AM
To: Steve.Toutant at inspq.qc.ca
Cc: mapserver-users at lists.osgeo.org; mapserver-users-bounces at lists.osgeo.org
Subject: [mapserver-users] RE null value renders in pie chart


I also tried with
EXPRESSION ([cri] != "")

I still have 4 slices...


Steve.Toutant at inspq.qc.ca@lists.osgeo.org<mailto:Steve.Toutant at inspq.qc.ca@lists.osgeo.org>
Envoyé par : mapserver-users-bounces at lists.osgeo.org<mailto:mapserver-users-bounces at lists.osgeo.org>

2013-01-03 11:43

A

mapserver-users at lists.osgeo.org<mailto:mapserver-users at lists.osgeo.org>

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Objet

[mapserver-users] null value renders in pie chart










Hi,
I created a layer that renders pie chart with 4 classes.

The problem is some classes are render in the pie even if there is no data (null). That means I always have 4 slices in the pie.
How can I remove the slices with null value?

I tried using EXPRESSION without success. I specified > 0 since I think "is not null" is not supported
CLASS
       NAME "Cri"
       EXPRESSION ([cri] > 0)
       STYLE
               SIZE [cri]
               COLOR 215 48 39
       END
END

thanks for your help,
Steve _______________________________________________
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