[K12OSN] Teacher Tool

[Huck]

or ImageMagik? http://www.imagemagick.org/script/index.php

--Huck

Peter Scheie wrote:
> 
> 
> Robert Arkiletian wrote:
>> On 3/9/07, Peter Scheie <peter at scheie.homedns.org> wrote:
>>>
>>>
>>> Robert Arkiletian wrote:
>>> > On 3/8/07, Kemp, Levi <lnkemp at bolivar.k12.mo.us> wrote:
>>> >> Is there a way in teacher tool to monitor the screens of all the
>>> >> students, even if it is a smaller size? If not does anyone know how I
>>> >
>>> > This seems to be a popular request but the only way I currently know
>>> > how to do this is to simply set the -geometry option in the vncviewer
>>> > call. I also could probably get the vnc windows to arrange themselves
>>> > on screen not to overlap. But if the student desktop is 1024x768 and
>>> > each view window (on the teacher screen) is 320x200 (or something)
>>> > then you don't see the entire student desktop only a section (not
>>> > useful). Does anyone know of a way to scale a vnc session to create a
>>> > thumbnail?
>>> >
>>> There's a package on freshmeat called VNC Snapshot that is a 
>>> commandline utility that
>>> takes a jpeg snapshot of a VNC server (the client machine in our 
>>> case).  Perhaps with
>>> that you could scale the jpegs down to thumbnail size and create a 
>>> 'board' with
>>> snapshots of the clients.  It's not real-time, but I think that's 
>>> probably better, as a
>>> bunch of real-time thumpnails would tax the network.  VNC Snapshot is at
>>> http://vncsnapshot.sourceforge.net/
>>>
>>
>> This is the best idea I have seen. Thanks Petre. You are right, real
>> time thumbs would probably be too much for the network. I will see if
>> I can integrate vnc snapshot. Might not happen till this summer as I
>> am bogged down with report cards and teaching.
>>
> Further, you may want to have a look at jpgtn which generates thumbnails 
> from jpeg files.  See http://jpgtn.sourceforge.net/
> 
> Petre
> 
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