[vtkusers] 3D axis that follows main actor
Loc Exp
locexp at gmail.com
Fri Sep 17 10:19:25 EDT 2010
Hi, guys!
I have a similar problem. I want to get intensity values from a dicom
volume; this volume was created using vtkDICOMImageReader
vtkRayCastVolumeMapper and vtkVolume. I want give the X, Y, Z coordinates
and get the intensity value of the voxel X, Y, Z. In my case, it is not
necessary to use mouse. Passing X, Y, Z parameters are sufficient.
I would be more than grateful if I had some help from anyone.
Thanks!
2010/9/10 Rodrigo Valiña Gutiérrez <rodrigo.valina at usc.es>
> Hi,
>
> My app crashes when I add a new tab, before showing the scene.
> I wrote an example and... does not crash (axis_.py).
> Then I wrote another example (note.py) with a wx.aui.AuiNotebook and it
> crashes after adding the scene, when pasing the mouse over it.
>
> Rodrigo
>
>
> On Fri, Sep 10, 2010 at 5:34 AM, Bill Lorensen <bill.lorensen at gmail.com>wrote:
>
>> Please post a complete python example that crashes and I'll take a look.
>>
>> Bill
>>
>> On Thu, Sep 9, 2010 at 11:05 AM, Rodrigo Valiña Gutiérrez
>> <rodrigo.valina at usc.es> wrote:
>> > On Thu, Sep 9, 2010 at 2:22 PM, Bill Lorensen <bill.lorensen at gmail.com>
>> > wrote:
>> >>
>> >> Try this:
>> >>
>> >>
>> http://vtk.org/Wiki/VTK/Examples/Cxx/Visualization/DisplayCoordinateAxes#AxesIndicator.cxx
>> >> or for a more sophisticated "axes", this:
>> >>
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Widgets/OrientationMarkerWidget
>> >>
>> >
>> > Thanks, I think that it should do, but it keeps giving me Segmentation
>> > Fault...
>> >
>> > With Python 2.6.5, VTK 5.2.1-14ubuntu4, and Ubuntu 10.04, and this code:
>> >
>> > axes = vtk.vtkAxesActor()
>> > vomw = vtk.vtkOrientationMarkerWidget()
>> > vomw.SetOutlineColor( 0.9300, 0.5700, 0.1300 )
>> > vomw.SetOrientationMarker( axes )
>> > #vomw.SetDefaultRenderer( self.ren )
>> > vomw.SetInteractor( self.iren )
>> > vomw.SetViewport( 0.0, 0.0, 0.4, 0.4 )
>> > vomw.SetEnabled( 1 )
>> > vomw.InteractiveOn( )
>> >
>> > It crashes:
>> >
>> > Program received signal SIGSEGV, Segmentation fault.
>> > 0x0530497d in vtkRenderer::GetActiveCamera() () from
>> > /usr/lib/libvtkRendering.so.5.2
>> > (gdb) bt
>> > #0 0x0530497d in vtkRenderer::GetActiveCamera() () from
>> > /usr/lib/libvtkRendering.so.5.2
>> > #1 0x07b3f05a in
>> > vtkOrientationMarkerWidget::ExecuteCameraUpdateEvent(vtkObject*,
>> unsigned
>> > long, void*) ()
>> > from /usr/lib/libvtkWidgets.so.5.2
>> > #2 0x07b40499 in
>> vtkOrientationMarkerWidgetObserver::Execute(vtkObject*,
>> > unsigned long, void*) ()
>> > from /usr/lib/libvtkWidgets.so.5.2
>> > #3 0x0264f922 in vtkSubjectHelper::InvokeEvent(unsigned long, void*,
>> > vtkObject*) () from /usr/lib/libvtkCommon.so.5.2
>> > #4 0x0264f9d8 in vtkObject::InvokeEvent(unsigned long, void*) () from
>> > /usr/lib/libvtkCommon.so.5.2
>> > #5 0x05306f80 in vtkRenderer::Render() () from
>> > /usr/lib/libvtkRendering.so.5.2
>> > #6 0x053032bb in vtkRendererCollection::Render() () from
>> > /usr/lib/libvtkRendering.so.5.2
>> > #7 0x0531352f in vtkRenderWindow::DoStereoRender() () from
>> > /usr/lib/libvtkRendering.so.5.2
>> > #8 0x05313910 in vtkRenderWindow::DoFDRender() () from
>> > /usr/lib/libvtkRendering.so.5.2
>> > #9 0x05314d1c in vtkRenderWindow::DoAARender() () from
>> > /usr/lib/libvtkRendering.so.5.2
>> > #10 0x05313a55 in vtkRenderWindow::Render() () from
>> > /usr/lib/libvtkRendering.so.5.2
>> > #11 0x053b64b4 in vtkXOpenGLRenderWindow::Render() () from
>> > /usr/lib/libvtkRendering.so.5.2
>> > #12 0x050a2635 in ?? () from /usr/lib/libvtkRenderingPythonD.so.5.2
>> > #13 0x080e0a21 in PyEval_EvalFrameEx ()
>> > #14 0x080e1bb0 in PyEval_EvalFrameEx ()
>> > #15 0x080e2807 in PyEval_EvalCodeEx ()
>> > #16 0x0816b2ac in ?? ()
>> > #17 0x0806245a in PyObject_Call ()
>> > #18 0x0806a45c in ?? ()
>> > #19 0x0806245a in PyObject_Call ()
>> > #20 0x080db892 in PyEval_CallObjectWithKeywords ()
>> > ---Type <return> to continue, or q <return> to quit---
>> > #21 0x004a2c1e in wxPyCallback::EventThunker(wxEvent&) () from
>> > /usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/_core_.so
>> > #22 0x00d0ca9f in wxAppConsole::HandleEvent(wxEvtHandler*, void
>> > (wxEvtHandler::*)(wxEvent&), wxEvent&) const ()
>> > from /usr/lib/libwx_baseu-2.8.so.0
>> > #23 0x00dab209 in
>> wxEvtHandler::ProcessEventIfMatches(wxEventTableEntryBase
>> > const&, wxEvtHandler*, wxEvent&) ()
>> > from /usr/lib/libwx_baseu-2.8.so.0
>> > #24 0x00dab398 in wxEvtHandler::SearchDynamicEventTable(wxEvent&) ()
>> from
>> > /usr/lib/libwx_baseu-2.8.so.0
>> > #25 0x00dac3a5 in wxEvtHandler::ProcessEvent(wxEvent&) () from
>> > /usr/lib/libwx_baseu-2.8.so.0
>> > #26 0x07ea42a2 in wxGLCanvas::OnInternalIdle() () from
>> > /usr/lib/libwx_gtk2u_gl-2.8.so.0
>> > #27 0x00afa415 in wxAppBase::SendIdleEvents(wxWindow*, wxIdleEvent&) ()
>> from
>> > /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > #28 0x00afa449 in wxAppBase::SendIdleEvents(wxWindow*, wxIdleEvent&) ()
>> from
>> > /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > #29 0x00afa449 in wxAppBase::SendIdleEvents(wxWindow*, wxIdleEvent&) ()
>> from
>> > /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > #30 0x00afa449 in wxAppBase::SendIdleEvents(wxWindow*, wxIdleEvent&) ()
>> from
>> > /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > #31 0x00afa449 in wxAppBase::SendIdleEvents(wxWindow*, wxIdleEvent&) ()
>> from
>> > /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > #32 0x00afa449 in wxAppBase::SendIdleEvents(wxWindow*, wxIdleEvent&) ()
>> from
>> > /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > #33 0x00afa449 in wxAppBase::SendIdleEvents(wxWindow*, wxIdleEvent&) ()
>> from
>> > /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > #34 0x00afa6c1 in wxAppBase::ProcessIdle() () from
>> > /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > #35 0x00a4e2c3 in ?? () from /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > #36 0x01604661 in ?? () from /lib/libglib-2.0.so.0
>> > #37 0x016065e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
>> > #38 0x0160a2d8 in ?? () from /lib/libglib-2.0.so.0
>> > #39 0x0160a817 in g_main_loop_run () from /lib/libglib-2.0.so.0
>> > #40 0x010603c9 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
>> > #41 0x00a67708 in wxEventLoop::Run() () from
>> > /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > ---Type <return> to continue, or q <return> to quit---
>> > #42 0x00afa4de in wxAppBase::MainLoop() () from
>> > /usr/lib/libwx_gtk2u_core-2.8.so.0
>> > #43 0x004a0b92 in wxPyApp::MainLoop() () from
>> > /usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/_core_.so
>> > #44 0x005139da in ?? () from
>> > /usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/_core_.so
>> > #45 0x080e0f4d in PyEval_EvalFrameEx ()
>> > #46 0x080e2807 in PyEval_EvalCodeEx ()
>> > #47 0x0816b2ac in ?? ()
>> > #48 0x0806245a in PyObject_Call ()
>> > #49 0x0806a45c in ?? ()
>> > #50 0x0806245a in PyObject_Call ()
>> > #51 0x080e0471 in PyEval_EvalFrameEx ()
>> > #52 0x080e1bb0 in PyEval_EvalFrameEx ()
>> > #53 0x080e1bb0 in PyEval_EvalFrameEx ()
>> > #54 0x080e2807 in PyEval_EvalCodeEx ()
>> > #55 0x080e2907 in PyEval_EvalCode ()
>> > #56 0x081005ad in PyRun_FileExFlags ()
>> > #57 0x08100812 in PyRun_SimpleFileExFlags ()
>> > #58 0x0805de5c in Py_Main ()
>> > #59 0x0805d03b in main ()
>> >
>> > --------
>> >
>> >>
>> >> On Thu, Sep 9, 2010 at 7:56 AM, Rodrigo Valiña Gutiérrez
>> >> <rodrigo.valina at usc.es> wrote:
>> >> > On Thu, Sep 9, 2010 at 11:45 AM, David Doria <
>> daviddoria+vtk at gmail.com <daviddoria%2Bvtk at gmail.com>>
>> >> > wrote:
>> >> >>
>> >> >> On Thu, Sep 9, 2010 at 4:44 AM, Rodrigo Valiña Gutiérrez
>> >> >> <rodrigo.valina at usc.es> wrote:
>> >> >> > Hi,
>> >> >> >
>> >> >> > I want an actor or a way to draw an object composed of 3 arrows
>> for X
>> >> >> > Y
>> >> >> > and
>> >> >> > Z axes, in the lower left corner of the window, and orients itself
>> >> >> > acording
>> >> >> > to the rotation of the camera. I do not want it to zoom or
>> displace.
>> >> >> > It
>> >> >> > should be like the one ParaView has in the lower left corner.
>> >> >> >
>> >> >> > Is there any simple way to do it?
>> >> >> >
>> >> >> > --
>> >> >> > Rodrigo
>> >> >>
>> >> >> This should do the trick;
>> >> >>
>> >> >> http://www.vtk.org/Wiki/VTK/Examples/Cxx/GeometricObjects/Axes
>> >> >>
>> >> >> David
>> >> >
>> >> > It does not work for me.
>> >> > The code in the link places the object in world coordinates, and the
>> >> > object
>> >> > moves and zooms with the rest of the scene.
>> >> > I wanted an object that was fixed-size and fixed-position (lower left
>> >> > corner
>> >> > of the visualization), and only oriented itself like the other
>> objects
>> >> > in
>> >> > the scene.
>> >> >
>> >> > --
>> >> > Rodrigo
>> >> >
>> >> > _______________________________________________
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>> >> >
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>> >> >
>> >> > Please keep messages on-topic and check the VTK FAQ at:
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>> >> >
>> >> >
>> >
>> >
>>
>
>
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