[mapserver-users] Shapefile features = 0 (zero integer value) are empty and ignored? [SEC=UNCLASSIFIED]

[Jeff McKenna]

Hello Inna,

I am able to properly display features with an integer value of 0 
through an expression, as follows:

LAYER
   NAME "prov"
   TYPE POLYGON
   STATUS ON
   DATA "province.shp"
   CLASSITEM "INT_TEST"
   CLASS
     NAME "Provinces"
     EXPRESSION "0"
     STYLE
       COLOR 255 255 0
     END
   END
END # Layer

You might also want to verify the attributes, by using the ogrinfo 
commandline tool, where you can check the column types etc, such as:

   ogrinfo data.shp data -summary

I am testing with MS4W 3.1.3 (MapServer 7.0.1). http://ms4w.com

-jeff


-- 
Jeff McKenna
MapServer Consulting and Training Services
http://www.gatewaygeomatics.com/




On 2016-03-31 9:40 PM, Inna Nogeste wrote:
> I'm using MapServer 6.4 and have a shapefile where features have an attribute = 0 (zero integer value). I want to display these features = 0 but they seem to be regarded as null/empty features in MapServer so are ignored and won’t display on the map.
>
> Other integer values in the same field can be displayed on the map, including the value of -1, but not 0.
> I can select these records = 0 in ArcGIS and QGIS 2.8.2
>
> Can anyone tell me how, or if, shapefile features with attribute = 0 integer value can be used in a MapServer expression, or how to enter values = 0 in to a shapefile for MapServer Expressions?
>
> Regards,
> Inna Nogeste | Spatial Information Specialist
> Geospatial Data and Services
> Information Systems and Services Division
> Bureau of Meteorology
> www.bom.gov.au
> _______________________________________________