Connect DODS Server

[NicoSIG]

It's OK without DODS_CONF.
My file Coriolis.das was wrong.
If I declare Coriolis.das like that :

Attributes {
  ogr_layer_info_1 {
    string layer_name toto;
    string target_container location.profile;
    y_field {
    	string name location.LATITUDE;
    	string scope dds;
    }
    x_field {
        string name location.LONGITUDE;
        string scope dds;
    }
  }
}

This is my dds file :

Dataset {
    Sequence {
        Float64 TIME;
        Float32 TIME_QC;
        Float32 LONGITUDE;
        Float32 LATITUDE;
        Float32 POSITION_QC;
        Int32 _id;
        Sequence {
            Float32 DEPH;
            Float32 DEPH_QC;
            Float32 PRES;
            Float32 PRES_QC;
            Float32 TEMP;
            Float32 TEMP_QC;
        } profile;
        Structure {
            String PLATFORM_NUMBER;
            String PROJECT_NAME;
            String PI_NAME;
            String DATA_CENTRE;
            String DC_REFERENCE;
            String DATA_STATE_INDICATOR;
            String INST_REFERENCE;
            String WMO_INST_TYPE;
            String POSITIONING_SYSTEM;
            Float64 DATE_UPDATE;
            String LIST_PARAM;
        } attributes;
    } location;
} bathy;

I can access to latitude and longitude variables and profile variables.

but I can't access to attributes variables (attributes is a structure and
not a sequence).
How do I write Coriolis.das to access them ??

Nico






Pericles S. Nacionales-2 wrote:
> 
> Hi!
> 
> I'm no expert on this but I think you also need to define a DODS config
> file 
> in your mapfile: CONF DODS_CONF "/path/to/dodsrc"
> 
> The dodsrc file might look something like this:
>   # DODS client configuation file. See the DODS
>   # users guide for information.
>   USE_CACHE=1
>   MAX_CACHE_SIZE=50
>   MAX_CACHED_OBJ=5
>   IGNORE_EXPIRES=0
>   CACHE_ROOT=/ms4w/tmp/ms_tmp/dods_cache/
>   DEFAULT_EXPIRES=86400
>   ALWAYS_VALIDATE=0
>   # Request servers compress responses if possible?
>   # 1 (yes) or 0 (false).
>   DEFLATE=1
>   # Proxy configuration:
>   # PROXY_SERVER=<protocol>,<host[:port]>
>   # PROXY_SERVER=,
>   # PROXY_FOR=<regex>,<host[:port]>
>   # PROXY_FOR=,
>   # NO_PROXY_FOR=<protocol>,<host|domain>
>   # NO_PROXY_FOR=,
>   AIS_DATABASE=/ms4w/apps/dods_demo/ogr_test_eg.xml
> 
> Lastly, you might need to create a "dods_cache" under your IMAGEPATH.
>  Make 
> sure the web user has write permission to this directory.
> 
> If all these don't help you, the people who can are probably over at the 
> DODS/OPeNDAP forum.  If you're not subscribed, go to 
> http://www.opendap.org/mailLists/index.html and subscribe to the
> "DODS-TECH" 
> mailing list.  You might want to search their archive first before sending 
> your query.
> 
> Cheers!
> -Perry
> 
> On Thursday 17 August 2006 04:06, NicoSIG wrote:
>> I would like to connect Mapserver to a DODS Server.
>> latitude and longitude variables must be named 'lat' and 'lon', and on my
>> Server, they're named 'LATITUDE' and 'LONGUITUDE'.
>>
>> By using AIS mechanism, I wrote a DAS file with an Alias.
>>
>> Here is my mapfile:
>> MAP
>> ...
>> CONFIG DODS_AIS_FILE
>> "/home/alboran/logiciels/apache/htdocs/mtreguer/cartoweb3/projects/sextant_
>>test/server_conf/sextant/dods/ais.xml" ...
>> LAYER
>>     NAME "serveur_dods"
>>     TYPE POINT
>>     CONNECTIONTYPE OGR
>>      CONNECTION
>> "DODS:http://rhsism11.ifremer.fr:8080/dap4cor/dap4cor-coriolis?lat,lon,POSI
>>TION_QC&lat>47&lat<50&lon>-6&lon<0"
>>
>>     DATA "location"
>>     STATUS DEFAULT
>> .......
>>
>>
>> Here is ais.xml file :
>> <?xml version="1.0" encoding="US-ASCII" standalone="no"?>
>> <!DOCTYPE ais SYSTEM "http://xml.opendap.org/ais/ais_database.dtd">
>> <ais xmlns="http://xml.opendap.org/ais">
>>
>>   <entry>
>>     <primary regexp="http://rhsism11.ifremer.fr:8080/dap4cor*"/>
>>     <ancillary rule="fallback"
>> url="/home/alboran/logiciels/apache/htdocs/mtreguer/cartoweb3/projects/sext
>>ant_test/server_conf/sextant/dods/Coriolis.das"/> </entry>
>>
>> </ais>
>>
>> And this is Coriolis.das:
>>
>> Attributes {
>>   Alias lat location.LATITUDE;
>>   Alias lon location.LONGITUDE;
>> }
>>
>>
>> but the system return an error:
>>
>> Error in msOGRFileOpen(): Open failed for OGR connection
>> `DODS:http://rhsism11.ifremer.fr:8080/dap4cor/dap4cor-coriolis?lat,lon,POSI
>>TION_QC&lat>47&lat<50&lon>-6&lon<0'. Error fetching DAS or DDS:
>> Error parsing the text on line 1 at or near:
>> The descriptor object returned from the dataset was null.
>> Check that the URL is correct.
>>
>> it seems that aliases are not considered.
>> how to resolve this problem ??
> 
> -- 
> Pericles S. Nacionales
> Conservation Biology Program
> University of Minnesota
> e-mail: naci0002 at umn.edu
> 
> 

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