[vtkusers] Blinking actors during picking

[Sebastien BARRE]

At 12/16/2003 03:10 PM, John Biddiscombe wrote:

>Could you spare a couple of minutes to let us know what is being
>changed...is it just the text mappers or will the changes have other
>knock on effects?

The text will now be a texture mapped to a plane, instead of a glPixmap, so 
I think the whole text mapper hierarchy will be useless and go away.

I'll keep the main text actor of course, but cleanup the justification 
ivars (we talked about that already), as I want those properties to be in 
the vtkTextProperty, not in the actor. Since nobody likes to be 
Biddiscombe'd I'll keep the functionalities already there :), like being 
able to justify against a box, not just a point :)

The rework is being done to allow some new features like:
- text orientation (i.e. arbitrary angle),
- unified 3D text and 2D text (i.e. you will be able to use the same fonts 
to extract a polygonal outline of the text, and eventually extrude it),
- text actor that can be placed in 3D (i.e. not a 3D text, but text on a 
plane that can be positioned anywhere in 3D, think of the scrolling text in 
the StarWars opening sequence),

Also, as a side effect, you will be able to render text in a 
vtkImageCanvasSource (or any vtkImageData actually).



--
Sebastien Barre