[vtkusers] Differences in display of vtkTextActors between vtk5.0.4 and vtk5.2.1 (shadow and accentuated characters) ??

[Mathieu Malaterre]

On Sun, Jan 11, 2009 at 8:29 PM, pof <jd379252 at gmail.com> wrote:
>> I'am trying to upgrade from vtk5.0.4 to vtk5.2.1, and I have two problems
>> with the rendering of vtkTextActor.
>> Basically :
>> - the shadow property looks rather strange in 5.2.1 compared to 5.0.4
>> - accuentuated characters (é, è...) are no longer displayed in 5.2.1
>>
>> Herebelow, a small test program that reproduces the behaviour is given.
>> I also joined links to illustrate the graphical output obtained with :
>> - vtk5.0.4 -> http://www.imageshare.web.id/images/mjg8s8miucbecde84rh0.png
>> - vtk5.2.1 http://www.imageshare.web.id/images/x1ijylcbtox56lbzn12.png
>>
>> I compiled both vtk version with VC++2005 under WinVista.
>> Any hints of where the problem may come from?
>> Thanks
>> JD
>>
>> // Example code to show the difference in rendering of vtkTextActor
>> // Compiled and run either with vtk5.0.4 or vtk5.2.1
>> //
>> #include "vtkCylinderSource.h"
>> #include "vtkPolyDataMapper.h"
>> #include "vtkActor.h"
>> #include "vtkRenderer.h"
>> #include "vtkRenderWindow.h"
>> #include "vtkRenderWindowInteractor.h"
>> #include "vtkProperty.h"
>> #include "vtkCamera.h"
>> #include "vtkTextProperty.h"
>> #include "vtkTextActor.h"
>>
>> int main()
>> {
>>   // Create an example text actor.
>>   vtkTextActor *textActor = vtkTextActor::New();
>>
>> textActor->GetPositionCoordinate()->SetCoordinateSystemToNormalizedViewport();
>>   textActor->SetPosition(0.50,0.90);
>>   textActor->SetInput("Geometry based on vtkCylinderSource\nGéométrie
>> basée sur vtkCylinderSource\nvtk5.x.x");
>>   textActor->GetTextProperty()->SetFontSize(18);
>>   textActor->GetTextProperty()->SetFontFamilyToArial();
>>   textActor->GetTextProperty()->SetJustificationToCentered();
>>   textActor->GetTextProperty()->BoldOn();
>>   textActor->GetTextProperty()->ItalicOn();
>>   textActor->GetTextProperty()->ShadowOn();
>>   textActor->GetTextProperty()->SetColor(1, 0, 0);
>>
>>   // Creates a polygonal cylinder model with eight circumferential facets.
>>   vtkCylinderSource *cylinder = vtkCylinderSource::New();
>>   cylinder->SetResolution(8);
>>   vtkPolyDataMapper *cylinderMapper = vtkPolyDataMapper::New();
>>   cylinderMapper->SetInputConnection(cylinder->GetOutputPort());
>>   vtkActor *cylinderActor = vtkActor::New();
>>   cylinderActor->SetMapper(cylinderMapper);
>>   cylinderActor->GetProperty()->SetColor(1.0000, 0.3882, 0.2784);
>>   cylinderActor->RotateX(30.0);
>>   cylinderActor->RotateY(-45.0);
>>
>>   // Create the graphics structure.
>>   vtkRenderer *ren = vtkRenderer::New();
>>   vtkRenderWindow *renWin = vtkRenderWindow::New();
>>
>>   renWin->AddRenderer(ren);
>>   renWin->SetSize(600, 600);
>>
>>   vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
>>   iren->SetRenderWindow(renWin);
>>
>>   // Add the actors to the renderer, set the background and size
>>   ren->AddActor(cylinderActor);
>>   ren->AddActor(textActor);
>>   ren->SetBackground(0.1, 0.2, 0.4);
>>
>>   // We'll zoom in a little by accessing the camera and invoking a "Zoom"
>>   // method on it.
>>   ren->ResetCamera();
>>   ren->GetActiveCamera()->Zoom(1.5);
>>   renWin->Render();
>>
>>   // This starts the event loop and as a side effect causes an initial
>> render.
>>   iren->Start();
>>
>>   // Exiting from here, we have to delete all the instances that
>>   // have been created.
>>   textActor->Delete();
>>   cylinder->Delete();
>>   cylinderMapper->Delete();
>>   cylinderActor->Delete();
>>   ren->Delete();
>>   renWin->Delete();
>>   iren->Delete();
>>
>>   return 0;
>> }

Could you please log in a bug report at: http://vtk.org/Bug. Simply
copy/paste this piece of code in the report.

Thanks,

-- 
Mathieu