[Paraview] Fw: Re: mullion information

[Nancy]

Is there anyone can help me?

Hi Nancy,

This is not the same as mullions, and i am, unfortunately, not qualified to help you solve this problem.  What I can tell you, though, is that you needn't worry about mullions with a projector display because there are no "frames" around the edges of the tiles in your display.  I would suggest posting your question to the entire ParaView users group and see if anyone can help you out. 

best of luck,
bryan


On 5/10/06, Nancy <haifang_zhou at 163.com> wrote: 
Hi,

Our lab is building a display wall (1x3, three projector and a very large screen), that is to say one image is divided into three parts and projected onto the large screen through the three projectors.
But the engineer from display wall company teld us there needs redundant information between every two adjacent parts of the image to smooth the boundaries of the image parts.
Paraview supports tiled display, and can create 1x3 displays, but I don't know how to control it to create the redundant information between the displays. A simple illustration of my requirement is
showed in the attachment file of this email.
I am not sure whether here "redundant information" has the same meanning with the "mullion information" you point to?
How can I solve this problem?

Thanks,
Nancy




On 5/8/06, Nancy <haifang_zhou at 163.com > wrote: 

Hi,

Can you explain the meanning of mullion information
in detail?

this is rather difficult to explain, and since paraview does not support it, i am not sure how much this will be worth, but here goes... 

here is a definintion for mullion: a framing element which divides adjacent window, door , or glass units. (wikipedia)

in tiled displays made of a set of LCD monitors, it is desireable to render images such that there appears to be image information 'behind' the plastic borders of each LCD monitor.  if you do not do this, and instead render the image such that all pixels are visible, it will look all disjointed at the boundaries of the displays.  a simple illustration of this may be seen in this little image i made: 

http://ncmir.ucsd.edu/~bryan/mullions.jpg 

this picture is intended to show a simple two-monitor tiled display with a diagonal line that spans across the displays.  on top, the mullions have been taken into account, so the line appears as it should... continuous across the display.  on the bottom, all the pixels of the line are now visible, but now the line looks disjoint.  does that help? 



Dose that mean overlap region of two images that are
projected onto two adjacent displays? 


>------------------------------
>
>Message: 3
>Date: Mon, 1 May 2006 15:31:13 -0700 (PDT)
>From: "W. Bryan Smith" <bryan at ncmir.ucsd.edu >
>Subject: [Paraview] Mullion information in tiled display?
>To: paraview at paraview.org
>Message-ID: <Pine.GSO.4.64.0605011518460.218 at ncmir>
>Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed 
>
>
>hi,
>
>i am wondering if paraview supports mullion
>information when rendering to a tiled display.
>in case that is not a known term (mullion...
>since it was not known to me until today), this 
>refers to the hiding of image information at the
>borders of the lcd screens, such that the data
>appears continuous across the junction of
>adjacent displays.  in case this is still not
>clear, please let me know and i can provide a 
>concrete example.
>
>thanks,
>bryan
>
>
>W. Bryan Smith
>UCSD/NCMIR
>9500 Gilman Drive # 0608
>La Jolla, CA, 92093-0608
>
>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
>The illusion that we are separate from one another
>is an optical delusion of our consciousness.
>                                 -Albert Einstein
>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
>
>------------------------------
>
>Message: 5
>Date: Tue, 2 May 2006 06:33:35 -0600
>From: "Moreland, Kenneth" <kmorel at sandia.gov> 
>Subject: RE: [Paraview] Mullion information in tiled display?
>To: "W. Bryan Smith" <bryan at ncmir.ucsd.edu>, paraview at paraview.org 
>Message-ID:
>       <7137A9E1D1768C44BE7DF11D30FAB32301CDFAFE at ES21SNLNT.srn.sandia.gov >
>Content-Type: text/plain; charset=us-ascii 
>
>Not right now:
>
>http://www.paraview.org/Bug/bug.php?op=show&bugid=1132&pos=1 
>
>-Ken
>














　　　　　　　　　　　　　　
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