Re: [udig-devel] netcdf in catalog view

[andrea antonello <andrea.antonello@xxxxxxxxx>]

>> 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.
>
> If they are both elevation layers; even if in different units; we
> *could* make use of a global elevation slider in order to change both
> at the same time.
>
> I am starting to suspect that you are going to want:
> - a global slider for time
> - a style page for time; in which the user can choose "the default"
> which is the global slider; or a specific time - kind of like
> "pinning" a layer in time

That is exactly what should be there.

> Now if the verticle axis is actually different quanitities (say one
> file has elevation and another file has pressure) then we will need to
> provide the user different controls to fiddle with.
>
> We need to break out that wireframe tool :-)

I am starting to get afraid that this might explode. :)

Andrea


>
> Jody
>
>> 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
>>>>>> _______________________________________________
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>>>>>>
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