Hi Pof,<div><br></div><div>Since VTK 5.2.0, vtkTextActor is rendered using glyphs instead of OpenGL. I also had that problem but it was solved in that commit <a href="http://vtk.org/gitweb?p=VTK.git;a=commit;h=331a44656276882766248c1f8e338434b40226ef">http://vtk.org/gitweb?p=VTK.git;a=commit;h=331a44656276882766248c1f8e338434b40226ef</a> when UTF8 text rendering was enabled. It's after VTK 5.6 was released.</div>
<div><br></div><div>On the other hand, I suppose you still have problems rendering text with shadow, as you reported in that issue: <a href="http://vtk.org/Bug/view.php?id=9618">http://vtk.org/Bug/view.php?id=9618</a>. I tried to solve it and I attached a patch in that issue waiting for feedback. It would be wonder if you could test it and let me know if it works well.</div>
<div><br></div><div>Thanks,</div><div><br></div><div>Roger</div><div><br><br><div class="gmail_quote">On Fri, Sep 3, 2010 at 2:12 PM, Pof <span dir="ltr"><<a href="mailto:jd379252@gmail.com">jd379252@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi all,<br><br>I am having trouble displaying accentuated characters in vtkTextActor with vtk5.6.0 under MS-VC++2005.<br>
Here below is an exemple that reproduces the problem, by printing the same string than contains accents "é,è,à".<br>
When I run this small prog, as a result I obtain that accentuated characters (é,è...) are :<br>- correctly displayed when used in a vtkScalarBarActor title,<br>- not displayed when incorporated in vtkTextActor.<br><br>Any idea where does this come from and how to solve it?<br>
<br>As an additional comment, this used to work correctly under vtk5.0.x, it is only broken from vtk5.2.x up to vtk5.6.0.<br>
<br>Thanks<br>JD<br><br><br>//////////////////////////////////////////////////////<br>////////////////// vtkTextActor bug //////////////////<br>//////////////////////////////////////////////////////<br>#include "vtkActor.h"<br>
#include "vtkRenderer.h"<br>#include "vtkRenderWindow.h"<br>#include "vtkRenderWindowInteractor.h"<br>#include "vtkCamera.h"<br>#include "vtkTextProperty.h"<br>#include "vtkTextActor.h"<br>
#include "vtkActor2D.h"<br>#include "vtkLookupTable.h"<br>#include "vtkScalarBarActor.h"<br><br>int main()<br>{<br> // Tested string<br> char text[] = "Test: é, è, à";<br><br>
// Create an example text actor<br> vtkTextActor *textActor = vtkTextActor::New();<br> textActor->SetInput(text);<br> textActor->GetPositionCoordinate()->SetCoordinateSystemToNormalizedViewport();<br>
textActor->SetPosition(0.50,0.50);<br> textActor->GetTextProperty()->SetFontSize(30);<br> textActor->GetTextProperty()->SetJustificationToCentered();<br> textActor->GetTextProperty()->SetColor(1, 0, 0);<br>
<br> // Create a Lut<br> vtkLookupTable *Lut = vtkLookupTable::New();<br> Lut->SetHueRange (160.0/240.0, 0.0);<br> Lut->SetSaturationRange (1.0, 1.0);<br> Lut->SetValueRange (1.0, 1.0);<br> Lut->SetTableRange (0,100);<br>
Lut->Build();<br><br> // Create a ScalarBarActor<br> vtkScalarBarActor *scalarBar = vtkScalarBarActor::New();<br> scalarBar->SetTitle(text);<br> scalarBar->SetLookupTable(Lut);<br> scalarBar->SetHeight(0.5);<br>
scalarBar->SetWidth(0.1);<br> scalarBar->SetPosition(0.10,0.01);<br> scalarBar->SetPosition2(0.80,0.1);<br> scalarBar->SetOrientationToHorizontal();<br><br> // Create the graphics structure<br>
vtkRenderer *ren = vtkRenderer::New();<br> vtkRenderWindow *renWin = vtkRenderWindow::New();<br> renWin->AddRenderer(ren);<br> renWin->SetSize(600, 600);<br> vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();<br>
iren->SetRenderWindow(renWin);<br><br> // Add the actors to the renderer, set the background and size<br> ren->AddActor(textActor);<br> ren->AddActor(scalarBar);<br> ren->SetBackground(0.1, 0.2, 0.4);<br>
ren->ResetCamera();<br> ren->GetActiveCamera()->Zoom(1.0);<br> renWin->Render();<br><br> // Starts the event loop<br> iren->Start();<br><br> // Do some cleaning<br> textActor->Delete();<br>
Lut->Delete();<br> scalarBar->Delete();<br> ren->Delete();<br> renWin->Delete();<br> iren->Delete();<br><br> return 0;<br>}<br>
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