[Zoo-discuss] Mapserver support: WCS input?

[Fenoy Gerald]

Hello Rémi,
thanks for your feedbacks.

The ZOO-Kernel is not able to handle multi-part by now. Nevertheless, what exactly are those values ? I don’t mean specifically in the case you presented but in general. By now, for one url/request we define one value (we can have multiple values but returned by multiple urls/requests) so we may be able to handle multi-part valued inputs by setting multiple values, but then the inputs should support more than only one input (at least the number of the returned multi-part). So, suppose now that we have two url/requests as input value, it is acceptable as we defined that the inputs support more than one inputs, but the multi-part values may give 4 inputs values. I am not totally sure this is suitable.

WPS 2.0. should solve this issue as it offer the capability to define nested inputs, by using it the maximum occurence number will stay relevant. So for a WCS as input the better solution is probably to define 2 nested inputs named header and coverage inside another input named for instance inputCoverage. The issue there is that the ZOO-Kernel does not support the nested inputs and outputs by now but this can be fixed if required. Please let me know if you need it.

I hope to hear back from you,
Best regards,


> Le 27 août 2015 à 19:12, Rémi Cresson <remi.cresson at teledetection.fr> a écrit :
> 
> AFAIU It seems to be related to the header information prepended to the TIFF with WCS 1.1.0 (see http://osgeo-org.1560.x6.nabble.com/WCS-GET-COVERAGE-delivers-corrupted-geotiff-td4231984.html).
> -With WCS 1.0.0 zoo works fine.
> -I've done a quick search on the web, about how to download only the attached binary data with curl C api, but I found nothing.
> 
> On 26/08/2015 10:18, Rémi Cresson wrote:
>> Hello,
>> 
>> I tried the Mapserver zoo support, and it works quite well. It is really cool to have a WMS or WCS at output !
>> Now, what I am trying to do is to use a WCS to input a WPS process. To make it simple, I use a previously generated WCS output with Zoo, and I try to reinject it in a WPS process.
>> 
>> I tried the POST method, with various URL (encoded/decoded), and I tried to build a xml request (using the same encapsulating scheme as the previously generetad output) then send it with curl.
>> Up to now, it failed (I have noticed that Zoo fails to download the input chunk in the tmp directory).
>> Does Zoo currently supports WCS as input of a WPS process? If yes, I would be pleased to know how to properly write the execute request!
>> 
>> Cheers,
>> 
>> Rémi
> 
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Gérald Fenoy
http://wiki.osgeo.org/wiki/User:Djay