[Paraview] picking/widgets, events, ImageData -> plots

[Utkarsh Ayachit]

So what are you plotting in the plot view? Directly the data that's
being selected or are you applying some other filter and then that's
shown in the plot view?

Can you create your pipeline/view setup in ParaView itself and send me
the screenshot. That will clarify the pipelines you're using.

Utkarsh

On Wed, Oct 27, 2010 at 11:59 AM, Randy Heiland <heiland at indiana.edu> wrote:
> Time frame?  I'm an academic.  And you're offering free, open source software. :)  Let's just say +1 to a request list.
>
> But beyond the selection functionality, is there some way to (dynamically) connect the selection to update a 2-D plot?  I can (sort of) already select a row in my ImageData, if I use a 3D view (http://mypage.iu.edu/~heiland/pv-stuff/).  But is there some magic to connect that selection to a port, that triggers an update to a plot window, etc?
>
> -Randy
>
> On Oct 27, 2010, at 12:26 PM, Utkarsh Ayachit wrote:
>
>> Randy,
>>
>> The 2D view by default uses a texture-based mapper for rendering the
>> image slice. We haven't implemented the selection capability yet for
>> this mapper (the same is true if you use slice representation in the
>> 3D view). What is your time frame for this application? Maybe we can
>> fast track adding support for selecting on image slices. An
>> alternative is to create a frustum selection and that should work even
>> in 2D view with slices.
>>
>> Utkarsh
>>
>> On Tue, Oct 26, 2010 at 2:08 PM, Randy Heiland <heiland at indiana.edu> wrote:
>>> Hi all,
>>>
>>> I'm trying to evaluate ParaView (3.8.1) as a possible framework/app for a tool we're trying to build (standalone, not client/server).  Our tool will primarily vis only static 2D ImageData.  We would like the ability to select a region of the ImageData, e.g. select an entire row, and have an X-Y plot be displayed in another window.  So, in this use case, one window (ImageData) remains static, but as a new row is selected, another window (plot/chart) is dynamically updated.  I'd welcome pointers to docs/examples and suggestions.
>>>
>>> I did see this thread on widgets:
>>> http://paraview.markmail.org/search/?q=mouse+event#query:mouse%20event+page:1+mid:iqhyx3k4ik6sk5ue+state:results
>>>
>>> and I was also playing around with the Selection Inspector.  However it seems that this only works with a 3D window(?) which is actually something I'd like to avoid, in terms of the freedom to rotate the ImageData about X or Y.
>>>
>>> thanks, Randy
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