time series problem 3 (Bug!?)
Jeroen Ticheler
Jeroen.Ticheler at FAO.ORG
Thu Oct 13 17:55:49 EDT 2005
Thanks for that! Is it a complex thing to add such support? I had the
impression from the code that it was virtually there already, just
that it first checked for a range and does not proceed to check for
ranges?
The problem is that a range doesn't work for this series. Data comes
in at three 10 daily periods a month, which is not exactly true as a
month does not always have 30 days. Still the images are always dated
with a 01, 11 and 21 for the day (or 1,2 or 3 for a dekad).
Ciao,
Jeroen
_______________________
Jeroen Ticheler
FAO-UN
Tel: +39 06 57056041
http://www.fao.org/geonetwork
42.07436°N 12.34327°E
On 13 Oct 2005, at 20:03, Yewondwossen Assefa wrote:
> 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
>>> (2005-03-11,2005-03-21,2005-04-01,2005-04-11,2005-04-21,2005-05-01,2
>>> 00
>>> 5-05-11,2005-05-21,2005-06-01,2005-06-11,2005-06-21,2005-07-01,2005-
>>> 07
>>> -11,2005-07-21,2005-08-01,2005-08-11,2005-08-21,2005-09-01,2005-09-1
>>> 1, 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
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>
> --
> ----------------------------------------------------------------
> 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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