[mapserver-users] TYPE UNION and STYLEITEM

[Jeff McKenna]

Hi Christy,

I am not sure what is happening in your case.  When I tested and 
documented, I included my full working mapfile here: 
http://www.mapserver.org/trunk/mapfile/union.html#mapfile-example

If you structure your test mapfile the same, does your issue still occur?

-jeff


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




On 11-05-03 1:46 PM, Christy Nieman wrote:
> Hello,
>
> I was wondering if someone could let me know if my logic here is flawed...
>
> I am testing layers of TYPE UNION. I have two point data files and if I
> have classes in the UNION'ed layer, they draw correctly. E.g.:
>
> # ==================================================
> # Layer: Layer 1 for union
> # ==================================================
> LAYER
> NAME "layer_1_for_union"
> STATUS OFF
> TYPE POINT
> SIZEUNITS PIXELS
> DATA "points1"
> END
>
> # ==================================================
> # Layer: Layer 2 for union
> # ==================================================
> LAYER
> NAME "layer_2_for_union"
> STATUS OFF
> TYPE POINT
> SIZEUNITS PIXELS
> DATA "points2"
> END
>
> # ==================================================
> # Layer: UNION Layer
> # ==================================================
> LAYER
> NAME "union_layer"
> STATUS DEFAULT
> TYPE POINT
> SIZEUNITS PIXELS
> CONNECTIONTYPE UNION
> CONNECTION "layer_1_for_union,layer_2_for_union"
> PROCESSING "ITEMS=TYPE,ELEV"
> CLASS
> NAME "At 4ft or lower"
> EXPRESSION ([ELEV] <= 4)
> STYLE
> SYMBOL 'circle'
> COLOR 0 255 0
> SIZE 15
> END
> END
> CLASS
> NAME "Above 4ft"
> EXPRESSION ([ELEV] <= 100)
> STYLE
> SYMBOL 'circle'
> COLOR 0 255 255
> SIZE 15
> END
> END
> CLASS
> NAME "Other"
> STYLE
> SYMBOL 'circle'
> COLOR 180 180 180
> SIZE 15
> END
> END
> END
>
> However, if I have styling in the source layers (i.e. layer_1_for_union
> and layer_2_for_union) and use STYLEITEM "AUTO" in the union layer, the
> two source layers must have STATUS DEFAULT for anything to show up
> (which, I think, causes them to be drawn twice?).
>
> Am I missing something with how UNIONs and STYLEITEM "AUTO" work? Or is
> this how it was designed?
>
> Thanks,
> Christy
>