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    <p>The interactor styles Invoke the events.....</p>
    <p><br>
    </p>
    <p>  case States.IS_PAN:<br>
              publicAPI.handleMousePan(renderer, pos);<br>
              publicAPI.invokeInteractionEvent({ type:
      'InteractionEvent' });<br>
              break;</p>
    <p><br>
    </p>
    <p>etc</p>
    <p><br>
    </p>
    <p>but I can't find an example of a receiver (observer) of the
      InteractionEvent....</p>
    <p><br>
    </p>
    <p>somewhere that implements handleInteractionEvent....</p>
    <p>I searched vtk.js for handleInteractionEvent and didn't find
      anything...</p>
    <p>?<br>
    </p>
    <p>Thanks</p>
    <p><br>
    </p>
    <p>Rick</p>
    <p><br>
    </p>
    <p><br>
    </p>
    <p><br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 09/14/2018 05:14 PM, Sebastien
      Jourdain wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CABObKxcR8b52C88WZ1a5b6ru7VmPC7=i99jjLqzGZdPB1=OxAQ@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=utf-8">
      <div dir="ltr">Your interactorObserver only need to implement
        handleStartInteractionEvent, handleInteractionEvent,
        handleEndInteractionEvent.
        <div>They will automatically be linked.<br>
          <div><br>
          </div>
          <div>Look at any other InteractorStyle implementation if need
            be.</div>
        </div>
        <div><br>
        </div>
        <div>Seb</div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr">On Fri, Sep 14, 2018 at 2:06 PM Rick Frank <<a
            href="mailto:rickfrank@me.com" moz-do-not-send="true">rickfrank@me.com</a>>
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div text="#000000" bgcolor="#FFFFFF">
            <p>Thanks.</p>
            <p><br>
            </p>
            <p>This event list seems to be missing</p>
            <p><br>
            </p>
            <p>const START_INTERACTION_EVENT = { type:
              'StartInteractionEvent' };<br>
              const INTERACTION_EVENT = { type: 'InteractionEvent' };<br>
              const END_INTERACTION_EVENT = { type:
              'EndInteractionEvent' };<br>
            </p>
            <br>
            and so function vtkInteractorObserver::subscribeToEvents()
            {)<br>
            <br>
            doesn't get them.<br>
            <br>
            I think this is a bug, or am I missing something?<br>
            <br>
            I'm trying to create an interactor observer and I can get
            the interaction events....<br>
            <br>
            <br>
            Thanks<br>
            <br>
            Rick<br>
            <br>
            <br>
            <div class="m_-3347050549355893865moz-cite-prefix">On
              09/13/2018 02:12 PM, Sebastien Jourdain wrote:<br>
            </div>
            <blockquote type="cite">
              <div dir="ltr">
                <div dir="ltr">I think it is named MiddleButton. You can
                  find the full list here:
                  <div><a
href="https://github.com/Kitware/vtk-js/blob/master/Sources/Rendering/Core/RenderWindowInteractor/index.js#L28-L56"
                      target="_blank" moz-do-not-send="true">https://github.com/Kitware/vtk-js/blob/master/Sources/Rendering/Core/RenderWindowInteractor/index.js#L28-L56</a><br>
                  </div>
                </div>
              </div>
              <br>
              <div class="gmail_quote">
                <div dir="ltr">On Thu, Sep 13, 2018 at 11:00 AM Rick
                  Frank <<a href="mailto:rickfrank@me.com"
                    target="_blank" moz-do-not-send="true">rickfrank@me.com</a>>
                  wrote:<br>
                </div>
                <blockquote class="gmail_quote" style="margin:0 0 0
                  .8ex;border-left:1px #ccc solid;padding-left:1ex">
                  <div text="#000000" bgcolor="#FFFFFF"> For the time
                    being I have a subclass of
                    vtkInteractorStyleTrackballCamera which is a crib of
                    vtkInteractorStyleSlice for handing slice views....<br>
                    <br>
                    <br>
                    I can get:<br>
                    <br>
                     publicAPI.handleRightButtonPress = (callData) =>
                    {<br>
                            const pos = callData.position;<br>
                            model.previousPosition = pos;<br>
                            publicAPI.startDolly();<br>
                        };<br>
                    <br>
                    to override RightButton<br>
                    <br>
                    but there doesn't seem to be a<br>
                    <br>
                     publicAPI.handleCenterButtonPress = (callData)
                    => {<br>
                         ....<br>
                        };<br>
                    <br>
                    <br>
                    ....<br>
                    <br>
                    Am I missing something on how to get the center
                    button? I can get the wheel....<br>
                    <br>
                    <br>
                    Thanks<br>
                    <br>
                    Rick<br>
                    <br>
                    <br>
                    <div
                      class="m_-3347050549355893865m_-7190038227117689756moz-cite-prefix">On
                      09/13/2018 01:21 PM, Sebastien Jourdain wrote:<br>
                    </div>
                    <blockquote type="cite">
                      <div dir="ltr">The manipulator infrastructure come
                        from ParaView and has never been pushed to VTK
                        on the c++ side.
                        <div>Anyhow, we have a ManipulatorStyle on which
                          we register a bunch of manipulators to custom
                          build our style binding (pan on left-button,
                          rotate on left-button+Alt, ...). </div>
                        <div>That's the high level concept.</div>
                        <div><br>
                        </div>
                        <div>So either you provide a XXXXStyle that
                          should handle everything or use a
                          ManipulatorStyle on which you register
                          manipulators...</div>
                        <div><br>
                        </div>
                        <div><br>
                        </div>
                      </div>
                      <br>
                      <div class="gmail_quote">
                        <div dir="ltr">On Thu, Sep 13, 2018 at 10:02 AM
                          Rick Frank via vtkusers <<a
                            href="mailto:vtkusers@public.kitware.com"
                            target="_blank" moz-do-not-send="true">vtkusers@public.kitware.com</a>>
                          wrote:<br>
                        </div>
                        <blockquote class="gmail_quote" style="margin:0
                          0 0 .8ex;border-left:1px #ccc
                          solid;padding-left:1ex">Hi,<br>
                          <br>
                          I'm using vtkInteractorStyleImage and notice
                          that I don't have access to <br>
                          a center mouse down (for Pan)...<br>
                          <br>
                          <br>
                          but the Manipulators have center mouse down...<br>
                          <br>
                          <br>
                          Manipulators seems to be a new thing in the
                          vtk.js<br>
                          <br>
                          <br>
                          How do they relate to the interactors? Is
                          there a way to get a center <br>
                          mouse down in my interactorStyleImage subclass<br>
                          <br>
                          <br>
                          Rick<br>
                          <br>
                          <br>
                          <br>
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                        </blockquote>
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                    </blockquote>
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                  </div>
                </blockquote>
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            </blockquote>
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