This is a good point. Greg, changing the "center" of this projection is not the same thing as changing the northing and easting. OM5 lets you change the n&e, but that just defines the projection parameters. The view is controlled by the center.
-- Don
On Feb 25, 2011, at 3:05 AM, Tore Halset <halset_at_pvv.ntnu.no> wrote:
> Hello.
>
> For the WMS, it is important that the UTMProjection can be used with a center coordinate outside of the natural UTM zone number. That is, they select a fixed EPSG-code and pan outside of the UTM zone area.
>
> Regards,
> - Tore.
>
> On Feb 24, 2011, at 22:56 , Don Dietrick wrote:
>
>> Hi Greg,
>>
>> This was probably an oversight as the OM5 beta has accessors for those
>> UTMProjection parameters.
>>
>> - Don
>>
>> On Thu, Feb 24, 2011 at 4:33 PM, Greg Jewell <greg17_at_jewell.net> wrote:
>>> Hello,
>>>
>>> I have a question about the implementation of UTMProjection in OM 4.6.5.
>>> The fields zone_number, isnorthern, and ellps are set in the constructor.
>>> These values are used in several methods of the class. However, a later
>>> change to the center of the projection never updates these values. The
>>> fields are private, and setCenter(LatLonPoint llp) isn't overridden. Was
>>> this intentional, or just an oversight? Right now, every time the center
>>> changes (through user panning or other means), I create an entirely new
>>> UTMProjection instance and give it to the MapBean. The other option is to
>>> subclass UTMProjection, but I'd have to essentially copy the entire class
>>> and add an overridden setCenter method.
>>>
>>> If this behavior was intentional, will my workarounds cause any problems?
>>>
>>>
>>> Thanks,
>>> Greg Jewell
>>>
>>>
>>
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Received on Fri Feb 25 2011 - 08:38:55 EST