[mapserver-users] cascading WMS service problem: "cannot calculate extent"

[Brent Wood]

Hi,


I am working on a local OSM WMS service (provided by mapserver). I want to cascade this & use it within other servers/maps. And advice appreciated.


I have set up a simple mapfile to do this, but keep getting a "cannot calculate extent" error that I cannot explain or resolve. I think the error is from my service, and not the one being cascaded.


The underlying services (in different styles) can be viewed in a browser at:

http://maps.nzoss.org.nz/?mode=browse&template=openlayers&layers=all&map=/opt/basemaps/osm-michelin.map
and
http://maps.nzoss.org.nz/?mode=browse&template=openlayers&layers=all&map=/opt/basemaps/osm-bing.map<http://150.242.41.10/?mode=browse&template=openlayers&layers=all&map=/opt/basemaps/osm-bing.map>
and
http://maps.nzoss.org.nz/?mode=browse&template=openlayers&layers=all&map=/opt/basemaps/osm-google.map


And can be accessed directly at

http://maps.nzoss.org.nz/cgi-bin/mapserv?map=/opt/basemaps/osm-google.map<http://150.242.41.10/cgi-bin/mapserv?map=/opt/basemaps/osm-google.map>

The mapfile to cascade this is below, could someone please let me know why this fails?



MAP
  NAME "osmnz2"
  EXTENT 12863671 -7350771 21885121 -1422127
  UNITS meters
  SIZE 1000 1000

  IMAGETYPE PNG24

  PROJECTION
    "init=epsg:3857"
  END
  WEB
    IMAGEPATH "/ms4w/tmp/ms_tmp/"
    IMAGEURL "/ms_tmp/"
    METADATA
      "wms_enable_request" "*"
      "wms_title" "WMS testing"
      "wms_srs" "EPSG:3857"

      "ows_keywordlist"    "osm nz"
      "ows_fees"           "none"
      "ows_accessconstraints" "none"
      "ows_contactorganization" "none"
      "ows_contactperson" "for this demo service:none"
      "ows_contactposition" "none"
      "ows_contactvoicetelephone" "none"
      "ows_contactfacsimiletelephone" "none"
      "ows_address" "none"
      "ows_city"    "none"
      "ows_country" "none"
      "ows_role"    "none"
      "ows_contactinstructions" "none"
      "ows_hoursofservice" "whenever"
      "ows_contactelectronicmailaddress" "none"
    END
  END

  LAYER
        NAME            "osmnz"
        EXTENT 12863671 -7350771 21885121 -1422127
        PROJECTION
          "init=epsg:3857"
        END # end of object "projection"

        TYPE            RASTER

        CONNECTION      "http://150.242.41.10/cgi-bin/mapserv?map=/opt/basemaps/osm-google.map"
        CONNECTIONTYPE  WMS

        STATUS          ON
        DUMP            FALSE
        METADATA
                "wms_name"              "osmnz"
                "wms_format"            "image/jpeg"
                "wms_server_version"    "1.0.0"
                "wms_title"             "osm_nz"
                "wms_srs"               "epsg:3857"
                "wms_extent"            "12863671 -7350771 21885121 -1422127"
                "wms_abstract"          "NZ Open Streetmap service"
                "wms_version"           "1.1.1"
                "queryable"             "false"
        END # end of metadata object
  END # end of layer "osm_nz"

END # map






Brent Wood


Brent Wood
Principal Technician - GIS and Spatial Data Management
Programme Leader - Environmental Information Delivery
+64-4-386-0529 | 301 Evans Bay Parade, Greta Point, Wellington | www.niwa.co.nz<http://www.niwa.co.nz>
[NIWA]<http://www.niwa.co.nz>
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