WMS GetFeatureInfo response question/issue
Jeff McKenna
jmckenna at DMSOLUTIONS.CA
Fri Jan 13 18:44:03 EST 2006
I've added the details of the GetFeatureInfo GML requirements to the
main part of the wms-server doc
(http://mapserver.gis.umn.edu/docs/howto/wms_server/). thanks for
pointing that out.
jeff
Nick Floersch wrote:
> Mr. Kralidis,
>
> Ask and ye shall receive, apparently!
>
> Thanks much. I don't usually look at the comments at the end of the
> tutorials/articles on the Mapserver page... But in this case, my answer
> was there all along, I just never scrolled down past the end of the
> article :)
>
> Out of curiosity, why does it say [Burlington] in your user name? Which
> Burlington?
>
> Thanks much!
>
> Nick
>
> -----Original Message-----
> From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
> Behalf Of Kralidis,Tom [Burlington]
> Sent: Friday, January 13, 2006 1:42 PM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: Re: [UMN_MAPSERVER-USERS] WMS GetFeatureInfo response
> question/issue
>
> As of MapServer 4.6 (I believe), you must explicitly cite that you want
> to include the fieldnames in the output GML response.
>
> If you want to include all your fields, you would put:
>
> "gml_include_items" "all"
>
> ...in your LAYER/METADATA block. If you don't want to include all
> fields, you would put:
>
> "gml_include_items" "myid,iname"
>
> ...type of thing.
>
> See http://mapserver.gis.umn.edu/docs/howto/wms_server for more details.
>
> ..Tom
>
>
>
> -----Original Message-----
> From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
> Behalf Of Nick Floersch
> Sent: Friday, January 13, 2006 1:32 PM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: [UMN_MAPSERVER-USERS] WMS GetFeatureInfo response
> question/issue
>
>
> 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
>
>
--
Jeff McKenna
DM Solutions Group Inc.
http://www.dmsolutions.ca
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