[vtkusers] Problems with vtkVectorText and vtkFollower in Java

[Carlos Martínez Burgos]

OK. I send a simple code fragment to show what I want. Is part of a class 
with more code wich I think not affect the result.

...

vtkPlaneSource plane = new vtkPlaneSource();
plane.SetOrigin(x, y, z);
plane.SetPoint1(x + width, y, z);
plane.SetPoint2(x, y + height, z);

vtkPolyDataMapper mapper = new vtkPolyDataMapper();
mapper.SetInput(plane.GetOutput());


vtkActor actor = new vtkActor();
actor.SetMapper(mapper);

vtkVectorText text = new vtkVectorText();
text.SetText("Sample text");

vtkPolyDataMapper textMapper = new vtkPolyDataMapper();
textMapper.SetInput(text.GetOutput());

vtkFollower textActor = new vtkFollower();
textActor.SetMapper(textMapper);
textActor.SetPosition(x - 1, y - 1, z);
textActor.GetProperty().SetColor(0, 0, 0);
textActor.SetCamera(renderer.GetActiveCamera());

renderer.AddActor(actor);
renderer.AddActor(textActor);

...

It seems simple. I'm inspired on the examples. At this moment I only want 
to solve the problem showing text. After that I will try to do the square 
labels with text. If you don't understand the problem, tomorrow I will 
send a simple program with code that doesn't work (I have to write it).

What do you think?

Thanks in advance.


On Tue, 10 Dec 2002, Jeff Lee wrote:

> perhaps you could post some sample code so we can see what you are 
> trying to do?
> -Jeff
> 
> Carlos Martínez Burgos wrote:
> 
> >Hi all.
> >
> >I try to do a grid plane using vtkPlaneSource. I have to put some legend. 
> >At first I had tried to include a vtkCubeAxisActor2D but its behaviour is 
> >not as I want. I want to assign a number/leter to each axis of the grid. 
> >This shows it:
> >
> >   A B C
> >  +-+-+-+
> >1 | | | |
> >  +-+-+-+
> >2 | | | |
> >  +-+-+-+
> >3 | | | |
> >  +-+-+-+
> >
> >I have tried to use vtkVectorText and vtkFollower but nothing is showed. 
> >I'm using the Java wrapper. If I run the Tcl sample programs the text is 
> >showed. Even then when I do a "zoom extent" to show all the objects on the 
> >renderer, it seems that the actor is there because the extent is bigger 
> >that when I don't add the actor.
> >
> >I have tried not using vtkFollower and I have got the same result.
> >
> >I have tried other text objects (vtkTextActor) and nothing changes.
> >
> >This seems there is a problem with texts in Java. Perhaps is because I use 
> >Linux. Have you got good results in Windows?
> >
> >I wish to know if somebody is using java and has got good results showing 
> >texts in Linux.
> >
> >Thanks.
> >
> >
> >  
> >
> 

-- 
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Carlos Martínez Burgos      |     Instituto Tecnológico de Informática
Ingeniero Informático       |      Universidad Politécnica de Valencia
Tlf: +34 963877237          |                        Camí de Vera, S/N
cmarbur at iti.upv.es          |                   46071 Valencia - Spain
www.iti.upv.es/~cmarbur     |                           www.iti.upv.es
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