time series problem 3 (Bug!?)

Thu Oct 13 14:03:38 EDT 2005

Hi There,

  Sorry for the late answer.

  From what I can see in your examples, you are running into a 
limitation of mapserver and it's support for the time extent values. 
Currently the time extent can only be defined as a range value and only 
one range value is valid (so something like is the only thing valid 
2005-09-11/2005-09-21)

  You should update your "wms_timeextent"  and try it with only one 
range. I will enter documentation bug so that this limitation is clearly 
defined. Give it a try and let me know.

Later,

Jeroen Ticheler wrote:
> Hi, sorry for continuing this story, but I really want to solve this  
> and hope my additional info helps to sort out the problems I face.
> 
> I am using a shapefile with the imgdate column added to it. I use  
> exactly the same index to work with a WCS on the same data, that one  
> works perfectly fine.
> 
> I have browsed through the mapServer sourcecode to see if I could  
> discover something/ understand the problem better. I'm not familiar  
> with C coding, so forgive my ignorance :-) What I could understand is  
> that my request fails when the time string submitted in the request  is 
> compared to the timeextent given in the capabilities document.
> 
> The exact section of the code is in  between line 545 and line 569,  
> apparently the msValidateTimeValue() procedure fails to find the  
> requested date in the extent. I do not get an error when I change my  
> extent to a range like "2005-09-11,2005-09-21/2005-09-21" or  
> "2005-09-11,2005-09-11/2005-09-21", but it will only render the very  
> last image, even when an earlier one is requested.
> 
> So I guess I face a bug!?
> 
> Thanks again,
> Jeroen
> 
> Begin forwarded message:
> 
>> From: Jeroen Ticheler <Jeroen.Ticheler at FAO.ORG>
>> Date: 12 October 2005 09:54:26 GMT+02:00
>> To: MAPSERVER-USERS at LISTS.UMN.EDU
>> Subject: [UMN_MAPSERVER-USERS] time series problem 2
>> Reply-To: Jeroen Ticheler <Jeroen.Ticheler at FAO.ORG>
>>
>>
>> Further to my previous message, the exception I get is the  following 
>> one:
>>
>> <ServiceExceptionReport version="1.1.1">
>>     <ServiceException code="InvalidDimensionValue">
>> msWMSApplyTime: WMS server error. Time value(s) 2005-09-21 given is  
>> invalid or outside the time extent defined  
>> (2005-03-11,2005-03-21,2005-04-01,2005-04-11,2005-04-21,2005-05-01,200 
>> 5-05-11,2005-05-21,2005-06-01,2005-06-11,2005-06-21,2005-07-01,2005-07 
>> -11,2005-07-21,2005-08-01,2005-08-11,2005-08-21,2005-09-01,2005-09-11, 
>> 2005-09-21), and default time set is invalid (2005-09-21)
>>     </ServiceException>
>> </ServiceExceptionReport>
>>
>> And the URL's I use are:
>>
>> For Capabilities:
>>
>> http://193.43.36.137/cgi-bin/spotveg? 
>> version=1.1.1&service=WMS&request=GetCapabilities
>>
>> For a working map without specifying the time:
>>
>> http://193.43.36.137/cgi-bin/spotveg? 
>> version=1.1.1&service=WMS&request=GetMap&srs=EPSG: 
>> 4326&bbox=-180,-90,180,90&format=image/ 
>> png&layers=spotndvi&transparent=true&width=400&height=200
>>
>> For a request with a time, the exception is returned:
>>
>> http://193.43.36.137/cgi-bin/spotveg? 
>> version=1.1.1&service=WMS&request=GetMap&srs=EPSG: 
>> 4326&bbox=-180,-90,180,90&format=image/ 
>> png&layers=spotndvi&transparent=true&width=400&height=200&time=2005-09 
>> -21
>>
>> These URL's can be reached from outside, so you can try this yourself.
>> Thanks in advance for any help to a solution,
>> Jeroen
>>
>> On 11 Oct 2005, at 19:20, Jeroen Ticheler wrote:
>>
>>
>>
>>> Hi,
>>> I have a problem with time series for WMS. I have used the  following 
>>> WMS attributes in my map file and I get the default  image the first 
>>> WMS map request. The moment I start requesting  maps with the time 
>>> variable set, I get an exception indicating  that the time format 
>>> used is not correct.
>>>
>>> The data is GeoTIFF
>>> I have an index shapefile with an imgdate column containing the  
>>> dates in the same format
>>>
>>> Anyone an idea, I can't find an example that has a whole range of  
>>> images with a specific time set for each image.
>>>
>>> Map file extract:
>>>
>>> At the map level (although I don't think this is supported/needed  
>>> for GeoTIFF data!?)
>>> ____________________________
>>>       "wms_timeformat"                 "YYYY-MM-DD"
>>> ____________________________
>>>
>>>
>>> At the layer level
>>> ____________________________
>>>
>>>      "wms_style_default_title"              "default"
>>>      "wms_format"                           "image/png"
>>>      "wms_timedefault"                  "2005-09-11"
>>>      "wms_timeextent"                   
>>> "2005-08-21,2005-09-01,2005-09-11"          # also tried with  spaces 
>>> after each comma
>>>      "wms_timeitem"                         "imgdate"
>>>
>>>     END
>>>     DUMP TRUE
>>>     TILEINDEX 'ndvi_idx'
>>>     TILEITEM "location"
>>>     EXTENT -180.0 -90.0 180.0 90.0
>>>     PROJECTION  "init=epsg:4326" END
>>> ____________________________
>>>
>>>
>>> Thanks in advance,
>>> Jeroen
>>> _______________________
>>> Jeroen Ticheler
>>> FAO-UN
>>> Tel: +39 06 57056041
>>> http://www.fao.org/geonetwork
>>> 12.34327°N 12.34327°E
>>>
>>>
>>>
>>>
>>
> 
> 

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Assefa Yewondwossen
Software Analyst

Email: assefa at dmsolutions.ca
http://www.dmsolutions.ca/

Phone: (613) 565-5056 (ext 14)
Fax:   (613) 565-0925
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