[Paraview] default representation?

[Utkarsh Ayachit]

Here are a few points to note:

There are two parts to choosing the default representation:

(a) Picking the representation proxy to use
(b) Picking which "Representation" type (e.g. Surface/Wireframe etc.)
to use -- this currently is only relevant for representations in
Render Views (or similar).

(a) happens with code pointed to by Cory
(vtkSMRenderViewProxy::GetRepresentationType). For representations in
"Render View", (b) happens in
vtkSMRepresentationTypeDomain::SetDefaultValues().
To display everything as "Wireframe", you're looking at changing (b),
more so than (a).

Utkarsh



On Fri, Oct 3, 2014 at 9:11 AM, Cory Quammen <cory.quammen at kitware.com> wrote:
> Bertwim,
>
> Ken is right, the default representation is chosen by the view in
> which the source output is displayed. See, for instance,
>
> ParaView/ParaViewCore/ServerManager/Rendering/vtkSMRenderViewProxy::GetRepresentationType()
>
> for the logic used to pick the default representation used in the 3D View.
>
> - Cory
>
> On Thu, Oct 2, 2014 at 10:50 PM, B.W.H. van Beest <bwvb at xs4all.nl> wrote:
>> It is just a box, sphere, etc (originating from vtkCubeSource,
>> vtpSPhereSource).
>> I want to display them initially in a wireframe representation.
>>
>> Regards,
>> Bertwim
>>
>> On 10/02/2014 08:38 PM, Moreland, Kenneth wrote:
>>> As far as I know (and anyone else on the list is welcome to correct me),
>>> you cannot directly change the default representation for the output of a
>>> source/filter. The default representation is automatically chosen based on
>>> the type of the data and the view it is being shown in.
>>>
>>>
>>> What kind of data is the output from your source?
>>>
>>> -Ken
>>>
>>> On 10/2/14, 10:37 AM, "B.W.H. van Beest" <bwvb at xs4all.nl> wrote:
>>>
>>>> But how can I set the default, especially for a new source?
>>>>
>>>>
>>>> Regards,
>>>> Bertwim
>>>>
>>>> On 10/02/2014 04:55 PM, Moreland, Kenneth wrote:
>>>>> The default representation is based more on the data type than the
>>>>> filter
>>>>> setup. I forget all the rules, but I believe that structured data types
>>>>> (like uniform and non-uniform rectilinear grids and curvilinear grids)
>>>>> default to outline. Unstructured data types (like poly data or
>>>>> unstructured grids) default to surface unless the size is larger than
>>>>> some
>>>>> threshold (which can be changed in settings). Multiblock data sets
>>>>> default
>>>>> to whatever is appropriate for the data type in the blocks.
>>>>>
>>>>>
>>>>> The rational for this behavior is that an unstructured data type likely
>>>>> represents some geometry of importance whereas a regular grid more
>>>>> likely
>>>>> represents some region in space where the relevant structure is
>>>>> internal.
>>>>>
>>>>> -Ken
>>>>>
>>>>> On 10/2/14, 7:53 AM, "B.W.H. van Beest" <bwvb at xs4all.nl> wrote:
>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> I noticed that sources like a box, sphere etc., are always displayed
>>>>>> initially with a surface representation, after which ione can set it
>>>>>> manually to something else, e.g. a wireframe. Where is this preference
>>>>>> being set? I cannot find it in the sources.xml file or in any of the
>>>>>> other xml files, but maybe I don't recognise it.
>>>>>>
>>>>>> Background of this is that I would like to change this default
>>>>>> behaviour, in particular for some new sources I'm creating in a plugin.
>>>>>> (The sources that are derived from the standard ones.)
>>>>>>
>>>>>> Kind Regards,
>>>>>> Bertwim
>>>>>>
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>>>
>>>
>>
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