Hei,
sorry Paul for the late response. I am reading some of the left over
emails lately.
I think your idea sounds reasonable and makes sense to me.
However, I would hear first a comment by Andreas (because they have the
new lib and also have done the WMS/WFS stuff).
What you have been refereing to below (CRS plugin) is problably the SRID
plugin that was needed for WMS (and is included in OJ
org/openjump/core/ccordsys/ upps.. i see i made an error here and we
need to correct this;)
did you implemented it already?
stefan
Paul Austin schrieb:
> Michaël,
>
> I've found the QName very useful in my DataObject framework which is why
> I was suggesting using it. It's also nice because it's part of Java so
> we don't need to have a special jar for a custom identifier. This might
> then be messy if we want to support using this identifier for many
> different use cases such as the CRS, feature type names etc.
>
> The only reason we would need it over just an int is if we wanted to
> support non EPSG defined CRS's which some people may want to do in a
> custom JUMP implementations if the EPSG definitions don't support their
> needs.
>
> Paul
>
> Michaël Michaud wrote:
>>> I think we should utilize QNames for specifying the CRS so for EPSG
>>> codes it would be {EPSG}4326 (this is how QName in java encodes it as a
>>> string). By using QName rather than an int it will allow us to support
>>> different registries of CRS's.
>>>
>>>
>>>
>> Hi,
>>
>> I'm just curious : is there a technical advantage in specifying crs as
>> QNames
>> or it is just a way to manage namespaces and be able to reference other
>> kinds of CRS than just EPSG:XXX
>> I ask because in my work, I started with a special class of identifier
>> with the following attributes :
>> private String namespace;
>> private String id;
>> private String shortName;
>> private String name;
>> private String remarks;
>>
>> which seemed more useful to me than namespace, name and prefix
>>
>> but I don't know if I miss something not using QNames
>>
>> Michaël
>>
>>
>>> We would need to add the CRS to the task and also support for setting
>>> it. I know there was a plugin at some point which did something like this.
>>>
>>> We would also need an option to set it for the task, this maybe a pop-up
>>> when you create a new task.
>>>
>>> The WMS plug-in could be modified to not ask for the CRS if the server
>>> supports the current CRS or ask for it if it doesn't or if the CRS isn't
>>> set for the task?
>>>
>>> The driving need for this for me is I have a projection library and data
>>> in different projections which I want to be automatically transformed
>>> when loading it into JUMP.
>>>
>>> Paul
>>>
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>>>
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