WMS GetFeatureInfo response question/issue
Nick Floersch
Nick at STONE-ENV.COM
Fri Jan 13 10:31:48 PST 2006
I am trying to use Queryable WMS with MapServer as my WMS server.
After some initial confusion, it would seem I have my basic toolset
working, because I can issue a query and get a response.
However, my response lacks useful feature data. This is what has
confounded me. From the tutorials/documentatation/e-mail lists I've
read, it seems like MapServer lacks any sort of way to control what
feature data is returned... you turn on DUMP TRUE and you just get
everything under the point you queried. I look at the shape file which
is the data source for my query layer, and the shape file DBF has
roughly 20 different attributes... strings, integers, and floats. Lots
of stuff. The layer is a polygon layer.
If the point I query does not hit a polygon, no data is returned (well,
the GML returned is an empty shell).
If I hit a point, I get the GML coordinates and that is it.
--- snip ---
<msGMLOutput>
<ParcelsBySystemTypeAndInstallDate_layer>
<ParcelsBySystemTypeAndInstallDate_feature>
<gml:boundedBy>
<gml:Box srsName="EPSG:26945">
<gml:coordinates>
6351230.073489,1837213.999341 6351887.175583,1837921.120908
</gml:coordinates>
</gml:Box>
</gml:boundedBy>
</ParcelsBySystemTypeAndInstallDate_feature>
</ParcelsBySystemTypeAndInstallDate_layer>
</msGMLOutput>
--- snip ---
(for example)
SO, that is my output. My MapFile looks like:
--- snip ---
[.. typical Map header stuff ..]
WEB
METADATA
"wms_title" "Malibu-IWIMS-GIS"
"wms_onlineresource"
"http://192.168.224.120/cgi-bin/mapserv?map=../public_html/GIS/maps/Mali
bu.map&"
"wms_srs" "EPSG:26945"
END
LOG "/httpd/Malibu/logs/mslog"
END
########################################################################
######
PROJECTION
"init=epsg:26945"
END
[..More layers and stuff..]
########################################################################
######
LAYER # THIS IS THE DYNAMICALLY SETUP LAYER
NAME "ParcelsBySystemTypeAndInstallDate"
STATUS ON
DATA "TempShape"
TYPE POLYGON
TEMPLATE "Blank.html"
HEADER "Blank.html"
FOOTER "Blank.html"
DUMP TRUE
METADATA
"wms_title" "Parcels with Systems where System Type is
Conventional, shaded by Install Date"
"wms_onlineresource"
"http://192.168.224.120/cgi-bin/mapserv?map=../public_html/GIS/maps/Mali
bu.map&"
"wms_srs" "EPSG:26945"
END
PROJECTION
"init=epsg:26945"
END
CLASSITEM 'INSTALLDAT'
CLASS
NAME "No Classification"
EXPRESSION ''
STYLE
COLOR 128 128 128
OUTLINECOLOR 255 255 255
ANTIALIAS true
END
END
CLASS
NAME 'Unspecified Date'
EXPRESSION ''
STYLE
COLOR 100 100 100
OUTLINECOLOR 255 255 255
ANTIALIAS true
END
END
CLASS
NAME '2002-06-03 -> 1997-06-03'
EXPRESSION (('[INSTALLDAT]' le '2002-06-03') and ('[INSTALLDAT]' gt
'1997-06-03'))
STYLE
COLOR 255 128 128
OUTLINECOLOR 16 16 16
ANTIALIAS true
END
END
CLASS
NAME '1997-06-03 -> 1992-06-03'
EXPRESSION (('[INSTALLDAT]' le '1997-06-03') and ('[INSTALLDAT]' gt
'1992-06-03'))
STYLE
COLOR 128 255 128
OUTLINECOLOR 16 16 16
ANTIALIAS true
END
END
CLASS
NAME '1992-06-03 -> 1987-06-03'
EXPRESSION (('[INSTALLDAT]' le '1992-06-03') and ('[INSTALLDAT]' gt
'1987-06-03'))
STYLE
COLOR 128 128 255
OUTLINECOLOR 16 16 16
ANTIALIAS true
END
END
CLASS
NAME '1987-06-03 -> 1982-06-03'
EXPRESSION (('[INSTALLDAT]' le '1987-06-03') and ('[INSTALLDAT]' ge
'1979-01-01'))
STYLE
COLOR 96 255 0
OUTLINECOLOR 16 16 16
ANTIALIAS true
END
END
END
--- snip ---
Note that, I have tried adding TEMPLATE entries inside of each class,
and it has not changed the output result.
I am using Mapserver 4.6.1
So... how do I get my layer to return more attribute data than just
coordinates?
Here is a list of the attributes in the shapefile.
--- snip ---
$> dbfdump --info TempShape.dbf
Filename: TempShape.dbf
Version: 0x03 (ver. 3)
Num of records: 756
Header length: 865
Record length: 1362
Last change: 1995/7/26
Num fields: 26
Field info:
Num Name Type Len Decimal
1. APN C 20 0
2. TRA C 11 0
3. EDITORNAME C 35 0
4. DISCHARGET C 31 0
5. USECODE C 11 0
6. UNIT C 11 0
7. UDATE C 16 0
8. PHASE C 11 0
9. MOVED C 11 0
10. PARCELIDST C 255 0
11. BLOCK C 11 0
12. PARCELID N 11 0
13. SYSTEMTYPE C 255 0
14. PCLTYPE C 11 0
15. INSTALLDAT C 255 0
16. SHAPE_AREA N 19 0
17. SUBDTYPE C 11 0
18. SHAPE_LEN N 19 0
19. PERIMETER N 19 0
20. AREA N 19 0
21. LOT C 11 0
22. AIN C 11 0
23. OID_ N 11 0
24. TRACT C 20 0
25. OBJECTID N 11 0
26. SYSTEMID C 255 0
--- snip ---
and here is a sample record:
--- snip ---
OGRFeature(TempShape):335
APN (String) = 4452-011-033
TRA (String) = (null)
EDITORNAME (String) = (null)
DISCHARGET (String) = Small Commercial
USECODE (String) = (null)
UNIT (String) = (null)
UDATE (String) = 0
PHASE (String) = (null)
MOVED (String) = (null)
PARCELIDST (String) = 4452011033
BLOCK (String) = (null)
PARCELID (Integer) = 204481
SYSTEMTYPE (String) = Conventional
PCLTYPE (String) = (null)
INSTALLDAT (String) = (null)
SHAPE_AREA (Integer) = 22868
SUBDTYPE (String) = (null)
SHAPE_LEN (Integer) = 596
PERIMETER (Integer) = 596
AREA (Integer) = 22868
LOT (String) = (null)
AIN (String) = 4452011033
OID_ (Integer) = 1792
TRACT (String) = (null)
OBJECTID (Integer) = 900225
SYSTEMID (String) = 205760
POLYGON ((6354269.883 1835660.066,6354143.342 1835646.922,6354142.028
1835646.739,6354141.200 1835646.661,6354140.371 1835646.613,6354139.540
1835646.594,6354138.709 1835646.603,6354137.878 1835646.641,6354137.050
1835646.709,6354136.224 1835646.805,6354135.403 1835646.930,6354134.586
1835647.084,6354133.775 1835647.266,6354132.971 1835647.476,6354132.174
1835647.714,6354131.387 1835647.980,6354130.609 1835648.273,6354129.842
1835648.594,6354129.087 1835648.940,6354128.344 1835649.313,6354127.614
1835649.712,6354126.899 1835650.136,6354126.199 1835650.584,6354125.516
1835651.056,6354124.849 1835651.553,6354124.200 1835652.072,6354123.569
1835652.614,6354122.958 1835653.176,6354122.367 1835653.760,6354121.796
1835654.365,6354121.247 1835654.989,6354120.720 1835655.632,6354120.216
1835656.293,6354119.735 1835656.971,6354119.278 1835657.665,6354118.845
1835658.375,6354118.439 1835659.100,6354118.056 1835659.838,6354117.701
1835660.589,6354117.371 1835661.352,6354117.068 1835662.126,6354116.793
1835662.911,6354116.545 1835663.704,6354116.325 1835664.505,6354116.133
1835665.315,6354115.970 1835666.129,6354115.835 1835666.949,6354115.729
1835667.774,6354115.651 1835668.602,6354115.603 1835669.431,6354102.028
1835793.535,6354116.428 1835795.234,6354252.761 1835811.328,6354269.883
1835660.066))
--- snip ---
Thank you in advance for your reponse,
Nick
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