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Re: [udig-devel] Map Rotation 
He is also know as Andrea Antonello (and is available on this list) - he was just travelling for a bit and missed out
on the map rotation discussion.

Jody

On 09/04/2010, at 3:00 PM, Trupti Pol wrote:

> 
> Hi Jody,
> 
> I would like to get some input from moovida as you mentioned.
> Please tell me how to contact him (mail id or something).
> Or It will be more better if you will forward this to moovida so that i will
> get some info about how to add more options to viewport model.
> 
> Otherwise working with bounds is quite difficult and will lead to
> unnecessary changes in many more functionalities.
> 
> Thanks & Regards,
> Trupti
> 
> 
> 
> 
> Jody Garnett-3 wrote:
>> 
>> I should also note that the geotools community experimented with adding
>> rotation (as an option for geoserver available via open layers app).
>> So perhaps there some support inside the geotools renderer that could be
>> made use of.
>> 
>> With respect to the bounds; it is a bit of a pickle...
>> 
>> If we allow rotation it becomes better to track the "viewport" by way of:
>> - center
>> - scale
>> - rotation
>> 
>> Rather then a bounding box.
>> 
>> Also note that moovida knows how to add more options to the viewport model
>> (he has added "time" and "elevation" ... so adding a rotation is
>> possible).
>> 
>> Jody
>> 
>> On 08/04/2010, at 3:05 PM, Trupti Pol wrote:
>> 
>>> 
>>> Hi Jesse,
>>> 
>>> Thanks for the reply. 
>>> 
>>> According to your suggestion  i rotated the graphics in renderer
>>> (BasicFeatureRenderer).
>>> Also taken care of pixelToWorld() and worldToPixel() methods.
>>> 
>>> Thus now i am able to rotate the map.
>>> But the problem is of bounds. I am unable to set the bounds for the
>>> viewport.
>>> 
>>> Thus i can see the rotated image on the viewport but as i pan towards the
>>> edges of the viewport the some part of the map is cutting down. I think
>>> this
>>> is only because of the invalid bounds.
>>> 
>>> Please give me some idea about how to set the rotated image bounds to
>>> viewport bounds ?
>>> 
>>> 
>>> 
>>> 
>>> 
>>> Jesse Eichar-4 wrote:
>>>> 
>>>> I think it depends on how you want the functionality to work.  There are
>>>> map
>>>> transformation commands that you can send to the map that can rotate the
>>>> map.  I think that perhaps the transformation is reset after a pan or
>>>> zoom
>>>> though, I cannot remember that anymore for certain.
>>>> 
>>>> The main component for displaying the map is the ViewportPane.  But that
>>>> is
>>>> only for the main screen not for printing and overviews.  You can use
>>>> draw
>>>> commands to rotate the viewport pane if you like.  But if you want to
>>>> make
>>>> the rotation at a deeper level like at the renderer level then it is
>>>> slightly more difficult.  I think each renderer handles translation from
>>>> world to map coordinates individually. For example WMSRenderer lets the
>>>> WMS
>>>> handle it and the BasicFeatureRenderer uses
>>>> ViewportModel.getAffineTransform.
>>>> 
>>>> So each of these would probably need to be modified.  The good news is
>>>> that
>>>> the modification would be minor for each.
>>>> 
>>>> Each renderer has a render(Graphic2D g) method.  You could modify each
>>>> so
>>>> set a transform on the graphics 2d.
>>>> 
>>>> Jesse
>>>> 
>>>> On Mon, Mar 29, 2010 at 7:38 AM, Trupti Pol <ktrup7@xxxxxxxxx> wrote:
>>>> 
>>>>> 
>>>>> Hi ,
>>>>> 
>>>>> We need to rotate map in one of product which uses udig - M7 as the
>>>>> target
>>>>> Platform
>>>>> I have alreay gone thru the previous post dtd somewhere in 2008.
>>>>> I just wanted to know is there any provision in udig M7 currently to
>>>>> rotate
>>>>> the Map.
>>>>> 
>>>>> What will the amount of efforts required?
>>>>> Will it be difficult one or not possible at all?
>>>>> 
>>>>> I would also like to know the areas which will have direct impact of
>>>>> this
>>>>> functionality.
>>>>> 
>>>>> Looking for some positive response.
>>>>> Thanks in advance.
>>>>> 
>>>>> Trupti Pol.
>>>>> 
>>>>> -----
>>>>> Thanks & Regards,
>>>>> Trupti Pol
>>>>> --
>>>>> View this message in context:
>>>>> http://old.nabble.com/Map-Rotation-tp28064993p28064993.html
>>>>> Sent from the udig-devel mailing list archive at Nabble.com.
>>>>> 
>>>>> _______________________________________________
>>>>> 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
>>>> 
>>>> 
>>> 
>>> 
>>> -----
>>> Thanks & Regards,
>>> Trupti Pol
>>> -- 
>>> View this message in context:
>>> http://old.nabble.com/Map-Rotation-tp28064993p28174161.html
>>> Sent from the udig-devel mailing list archive at Nabble.com.
>>> 
>>> _______________________________________________
>>> 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
>> 
>> 
> 
> 
> -----
> Thanks & Regards,
> Trupti Pol
> -- 
> View this message in context: http://old.nabble.com/Map-Rotation-tp28064993p28187656.html
> Sent from the udig-devel mailing list archive at Nabble.com.
> 
> _______________________________________________
> User-friendly Desktop Internet GIS (uDig)
> http://udig.refractions.net
> http://lists.refractions.net/mailman/listinfo/udig-devel

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