Ok it turns out Unk means undefined. When I looked into the dbf file I was expecting multiple entries, not knowing it only displays one try per unique match.<br><br>Anyway, problem solved.<br><br><div><span class="gmail_quote">
On 06/02/06, <b class="gmail_sendername">Xin</b> <<a href="mailto:crazygecko@gmail.com">crazygecko@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I am using a data that represents urban areas. I display the label field when the area is of a certain minimal size. This works great, but on closer inspection I have noticed 'Unk' being displayed at places. This doesn't happen often, but often enough to be a concern.
<br><br>I links below are images showing this.<br><p><span><a href="http://img.auctiva.com/imgdata/0/1/6/7/2/6/webimg/5867510_o.jpg" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://img.auctiva.com/imgdata/0/1/6/7/2/6/webimg/5867510_o.jpg
</a></span></p><p><span><a href="http://img.auctiva.com/imgdata/0/1/6/7/2/6/webimg/5867511_o.jpg" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://img.auctiva.com/imgdata/0/1/6/7/2/6/webimg/5867511_o.jpg
</a></span></p><p>I have checked in the data, and there is only one area called 'Unk'.
<br><span></span></p><p><span>Below is the mapfile code for that particular layer.</span></p><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">
<p><span>LAYER<br> # Urban Densitiy<br> NAME "BUILTUPA"<br> STATUS DEFAULT<br> DATA "BUILTUPA_AREA"<br> TYPE POLYGON<br> MAXSCALE 6000000<br> LABELITEM "NAM"
<br> <br> # Big Cities<br> CLASS<br> EXPRESSION ([AREA_SQMI] > 40)<br> MINSCALE 250000 <br> LABEL<br> TYPE TRUETYPE<br> FONT "verdana_bold"<br> SIZE 12<br> POSITION AUTO
<br> ANGLE AUTO<br> BUFFER 2<br> MINDISTANCE 10<br> COLOR 40 40 40 <br> OUTLINECOLOR 240 240 240<br> ANTIALIAS TRUE<br> PARTIALS TRUE<br> MINFEATURESIZE 8<br>
END<br> STYLE<br> COLOR 210 210 210<br> END<br> END<br> <br> # Cities<br> CLASS<br> MAXSCALE 2600000<br> EXPRESSION ([AREA_SQMI] > 25)<br> LABEL<br> TYPE TRUETYPE
<br> FONT "verdana"<br> SIZE 12<br> POSITION AUTO<br> ANGLE AUTO<br> BUFFER 2<br> MINDISTANCE 10<br> COLOR 40 40 40 <br> OUTLINECOLOR 240 240 240<br> ANTIALIAS TRUE
<br> PARTIALS TRUE<br> MINFEATURESIZE 8<br> END<br> STYLE<br> COLOR 210 210 210<br> END<br> END<br> <br> # Towns<br> CLASS<br> MAXSCALE 800000 <br> EXPRESSION ([AREA_SQMI] > 5 and [AREA_SQMI] < 40)
<br> LABEL<br> TYPE TRUETYPE<br> FONT "verdana"<br> SIZE 11<br> POSITION AUTO<br> ANGLE AUTO<br> BUFFER 2<br> MINDISTANCE 10<br> COLOR 40 40 40 <br> OUTLINECOLOR 240 240 240
<br> ANTIALIAS TRUE<br> PARTIALS TRUE<br> MINFEATURESIZE 8<br> END<br> STYLE<br> COLOR 210 210 210<br> END<br> END<br> PROJECTION<br> "proj=latlong"
<br> END<br> END</span></p></blockquote><div><br>Any help is greatly appreciated.<br><br>Xin<br> </div><br>
</blockquote></div><br>