[Paraview] PV Web scrollwheel for zoom, wrong legend

[Sebastien Jourdain]

Ken,

we should not try to use <ctrl> as it won't be possible to trigger it on OS
X as it will be understood as a "Right click" and will bring the popup menu.

But that's great to have that feature.

Seb

On Wed, Aug 17, 2016 at 7:38 PM, Ken Martin <ken.martin at kitware.com> wrote:

> <ctrl><shift>left mouse does work as zoom in vtk.js FWIW - Ken
>
> On Wed, Aug 17, 2016 at 7:32 PM, Sebastien Jourdain <
> sebastien.jourdain at kitware.com> wrote:
>
>> vtk.js interaction does not currently implement zooming. So the current
>> behavior is expected.
>>
>> What are you trying to do with vtk.js and salome? vtk.js has not been
>> released yet and is a pure JavaScript/client library.
>>
>>
>>
>> On Wed, Aug 17, 2016 at 3:18 PM, Daniel Zuidinga <info at seoaachen.de>
>> wrote:
>>
>>> shouldn't work scroll wheel in vtk.js? e.g. here
>>> https://kitware.github.io/vtk-js/examples/HttpSceneLoader.html
>>> I have to compile the whole sources? I use pv of salome meca. I hope it
>>> isn't to complicated and cpu intensive.
>>>
>>>
>>> Am 17.08.2016 um 22:32 schrieb Sebastien Jourdain:
>>>
>>> I guess ParaView is missing more code on the server side. ;-)
>>> This time, it will be in the C++.
>>>
>>>
>>> ${ParaView-src}/VTK/Web/Core/vtkWebApplication.cxx =>
>>> vtkPVWebApplication::HandleInteractionEvent
>>>
>>> vs
>>>
>>> ${ParaView-src}/Web/Core/vtkPVWebApplication.cxx =>
>>> vtkWebApplication::HandleInteractionEvent
>>>
>>> The VTK one has:
>>>
>>>   // Handle scroll action if any
>>>   if(event->GetScroll()) {
>>>     iren->SetEventInformation(0, 0, ctrlKey, shiftKey,
>>> event->GetKeyCode(), 0);
>>>     iren->MouseMoveEvent();
>>>     iren->RightButtonPressEvent();
>>>     iren->SetEventInformation(0, event->GetScroll()*10, ctrlKey,
>>> shiftKey, event->GetKeyCode(), 0);
>>>     iren->MouseMoveEvent();
>>>     iren->RightButtonReleaseEvent();
>>>     this->Internals->ImageCache[view].NeedsRender = true;
>>>     return true;
>>>   }
>>>
>>> If you got it working, could you submit a pull request on our gitlab and
>>> assign it to me so those fix could be part of PV 5.2?
>>>
>>> Thanks,
>>>
>>> Seb
>>>
>>> On Wed, Aug 17, 2016 at 2:08 PM, Daniel Zuidinga <info at seoaachen.de>
>>> wrote:
>>>
>>>> I added the lines but scroll wheel does not work
>>>>
>>>>
>>>>> Look at ${pv_src}/Web/Python/paraview/web/protocols.py
>>>>> #ParaViewWebMouseHandler
>>>>> vs ${pv_src}/VTK/Web/Python/vtk/web/protocols.py   #vtkWebMouseHandler
>>>>>
>>>>> it seems the paraview one is missing:
>>>>>
>>>>>       if event.has_key("scroll"):
>>>>>             pvevent.SetScroll(event["scroll"])
>>>>>
>>>>> Just add it to your paraview python file.
>>>>>
>>>>>
>>>>
>>>
>>>
>>
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>
>
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> Ken Martin PhD
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> Kitware Inc.
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