Can I join two DBF's spatially?

Kirk Johnson kjohnson at CDAID.ORG
Tue Oct 19 15:18:18 PDT 2004


Hello everyone,

I'm attempting to build a map that will allow users to enter in their
address, and it will report back their coresponding local zoning information.

I can only get the text query to return information from the Addresses
layer, and none from the desired zoning layer.
(an NQuery will successfully return info from both layers)

The addresses are contained in a shapefile/dbf combo named kcstruCDA.shp and
kcstruCDA.dbf.

The Zoning information is in a separate layer (shape file/dbf) named
zone2004.dbf and zone2004.shp.

My html to trigger the search is as follows:

<form method="GET" action="[program]" name="address">

Find your Address

<input type="hidden" name="map" value="C:\inetpub\wwwroot\cdagis\addressq.map">
<input type="hidden" name="map_web_imagepath" value="[map_web_imagepath]">
<input type="hidden" name="map_web_imageurl" value="[map_web_imageurl]">
<input type="hidden" name="slayer" value="R-8">
<input type="hidden" name="mode" value="itemnquery">
<input type="hidden" name="qlayer" value="ADDRESS">
<input type="hidden" name="qitem" value="Address">
<INPUT TYPE="text" NAME="qstring" SIZE="30">
<input type="hidden" name="map_web_template" value="[map_web_template]">
<input type="hidden" name="savequery" value="true">
<input type="submit" value="Go!">
height="[mapheight]" border="0" alt="this is the map"> -->
</form>

My results template is as follows:
(attempting to get zoning to display from a Join....)

<tr><td>[lrn]</td><td>[ADDRESS]</td><td>[SERIAL]</td><td>[PARCEL_ID]</td></tr>
<tr><td>[lrn]</td><td>[ZONING]</td><td></td><td></td></tr>
[zonejoin]: [zonejoin_ZONING]
<table cellpadding="5">
<tr>
<td><img border="2" src="[img]" height="200" width="200"></td>
<td><img border="2"
src="/cgi-bin/mapserv.exe?map=[map]&layer=BASE&mode=itemnquerymap&mapext=shape&slayer=R-8&qlayer=[qlayer]&qitem=[qitem]&qstring=[qstring]"
height="400" width="400"></td>

</tr>

And lastly, my mapfile is as follows:

MAP
  NAME "zonequery"
  STATUS ON
  # EXTENT 2340177.48963 2183849.25496 2395237.64752 2220590.24535
  EXTENT 2350177.48963 2193849.25496 2386237.64752 2210590.24535
  SIZE 600 600
  SHAPEPATH "C:\Inetpub\wwwroot\cdagis\zoning2004"
  SYMBOLSET "C:\Inetpub\wwwroot\cdagis\tutorial\etc\symbols.sym"
  FONTSET "C:\Inetpub\wwwroot\cdagis\tutorial\etc\fonts.txt"
  IMAGETYPE PNG
  IMAGECOLOR 255 255 255
  UNITS Meters

WEB
    # IMAGEPATH "c:\inetpub\wwwroot\tmp\"
    # IMAGEURL "c:\inetpub\wwwroot\tmp\"
    TEMPLATE "C:\Inetpub\wwwroot\cdagis\zonebasic.html"
    ERROR "c:\inetpub\wwwroot\tmp\zonequeryerr.log"
    LOG "c:\inetpub\wwwroot\tmp\zonequery.log"
    EMPTY "http://localhost/cdagis/zoning2004/templates/noresults.html"
    MINSCALE 1000
    MAXSCALE 1550000
  END

OUTPUTFORMAT
    NAME "png"
    MIMETYPE "image/png"
    DRIVER "GD/PNG"
    EXTENSION "png"
    IMAGEMODE PC256
    TRANSPARENT FALSE
END


QUERYMAP
    STATUS ON
    STYLE HILITE
    COLOR 255 0 51
END

LAYER
    NAME "BASE"
    STATUS ON
    DATA "./basemap"
    TYPE LINE
    UNITS METERS
    SIZEUNITS PIXELS
    TOLERANCE 0
    TOLERANCEUNITS PIXELS
    CLASS
      NAME "Basemap"
      STYLE
        SYMBOL 0
        COLOR 220 230 240
        SIZE 1
#        MINSIZE 1
#        MAXSIZE 100
      END
    END
  END

LAYER
    NAME "ADDRESS"
    STATUS ON
    DATA "./kcstruCDA"
    TYPE POINT
    SIZEUNITS PIXELS
    TOLERANCE 10
    TOLERANCEUNITS PIXELS
     CLASS
      NAME 'ADDRESS'
#      EXPRESSION "Address"
      TEMPLATE "C:\Inetpub\wwwroot\cdagis\zoning2004\templates\addressq.html"
   # END # class
 STYLE
       SYMBOL 'circle'
       COLOR 1 1 1
       SIZE 15
     END # style
    END
    HEADER "C:\Inetpub\wwwroot\cdagis\zoning2004\templates\addressq_header.html"
    FOOTER "C:\Inetpub\wwwroot\cdagis\zoning2004\templates\addressq_footer.html"
JOIN
   NAME "zonejoin"
   TABLE "C:\Inetpub\wwwroot\cdagis\zoning2004\r-8a.dbf"
   FROM ADDRESS
   TO ZONING
  # TEMPLATE "C:\Inetpub\wwwroot\cdagis\zoning2004\templates\addressq.html"
        TYPE SINGLE
 END # join
 END
LAYER
    NAME "R-8"
    STATUS ON
    DATA "./r-8a"
    TYPE POLYGON
    UNITS METERS
    SIZEUNITS PIXELS
    TOLERANCE 0
    TOLERANCEUNITS PIXELS
    CLASS
      NAME "R-8"
      TEMPLATE "C:\Inetpub\wwwroot\cdagis\zoning2004\templates\zone2004.html"
      STYLE
        SYMBOL 0
        COLOR 000 255 000
        SIZE 1
#        MINSIZE 1
#        MAXSIZE 100
      END
    END
    HEADER "C:\Inetpub\wwwroot\cdagis\zoning2004\templates\zone2004_header.html"
    FOOTER "C:\Inetpub\wwwroot\cdagis\zoning2004\templates\zone2004_footer.html"
  END


END


Thank you for any input

Kirk Johnson



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