Re: [udig-devel] netcdf in catalog view

[andrea antonello <andrea.antonello@xxxxxxxxx>]

[...]
> The handling of the different sliders in the navigation model should
> be pretty easy ...
> just like we layers that do not have a sense of time (say a base tile
> server layer) will not respond as time changes; layers that do not
> have height would remain unchanged if you changed the heigh; or layers
> that do not understand pressure would remain unchanged if you messed
> around with pressure.

That is not the problem. The problem is bound to the case in which we
have two netcdf files, both with time layers and vertical (say for
example elevation) layers.
In that case while time means the same for both and can be handled
with a common slider, the same doesn't apply for the vertical axis,
which can be anything and different for the two of them, therefore not
to be handled with a common slider.

Andrea


> Note: the other way to handle this stuff is as a "style" setting; and
> there should be some kind of guideline of when a style should be used;
> or when part of the viewport model should be used...
>
> I am hoping to learn more when we have some data to poke away at.
> Jody
>
>
> On Wed, Jun 3, 2009 at 5:37 PM, andrea antonello
> <andrea.antonello@xxxxxxxxx> wrote:
>>> My thought would not to display the deegrees of freedom (space / time
>>> / height) and only list the variables. The idea is to identify a
>>> dataset (ie a variable) and then to allow the user a visual way to
>>> navigate through the dataset.
>>>
>>> So lon/lat in your example...
>>
>> That would be good, adding at least informations about the dimensions
>> and layer quantities to the variable name.
>>
>> There is a problem anyway. We decided to bound the time navigation to
>> the map, i.e. if several netcdf variables are loaded into the map,
>> then they all MUST represent the same time instant. This makes sense.
>> But what about the vertical dimension? We can't force them to be
>> equal, we might have loaded rasters of temperature and pressure, in
>> which case the values have to be handled separately.
>>
>> What do you think?
>>
>> Andrea
>>
>>
>>
>>
>>> Jody
>>>
>>>
>>> On Wed, Jun 3, 2009 at 3:18 AM, andrea antonello
>>> <andrea.antonello@xxxxxxxxx> wrote:
>>>> Hi Jody (also Jesse),
>>>> I need you to review this thoughts about what to accept from netcdf
>>>> files and how to enable them in the catalog.
>>>>
>>>> Here description and images.
>>>> http://jgrass.wiki.software.bz.it/jgrass/thoughts_and_tests
>>>>
>>>> Please let me also know your thoughts about the last two open questions.
>>>>
>>>> Thanks,
>>>> Andrea
>>>> _______________________________________________
>>>> User-friendly Desktop Internet GIS (uDig)
>>>> http://udig.refractions.net
>>>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>>>
>>> _______________________________________________
>>> User-friendly Desktop Internet GIS (uDig)
>>> http://udig.refractions.net
>>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>>
>> _______________________________________________
>> User-friendly Desktop Internet GIS (uDig)
>> http://udig.refractions.net
>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>
> _______________________________________________
> User-friendly Desktop Internet GIS (uDig)
> http://udig.refractions.net
> http://lists.refractions.net/mailman/listinfo/udig-devel
>