[vtkusers] 3D axis that follows main actor

Thu Sep 9 11:05:47 EDT 2010

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
> >
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> > http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> >
> >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20100909/8cd83cec/attachment.htm>