[vtkusers] Re: Do vtkProp3D have "local coordinate system" ?

[Nigel Nunn]

Hi Sebastien, 
Do you have access to the Vtk documentation?  What version of 
Vtk are you using?  The following is from the description of 
vtkProp3D in the nightly version from 14 December, 2002: 
 
"vtkProp3D is an abstract class used to represent an entity 
in a rendering scene (i.e., vtkProp3D is a vtkProp with an 
associated transformation matrix). It handles functions 
related to the position, orientation and scaling. It combines 
these instance variables into one 4x4 transformation matrix 
as follows: 
  [x y z 1] = [x y z 1] 
  Translate(-origin) 
  Scale(scale) 
  Rot(y) Rot(x) Rot (z) 
  Trans(origin) 
  Trans(position). 
Both vtkActor and vtkVolume are specializations of class 
vtkProp.  The constructor defaults to: 
  origin(0,0,0) 
  position=(0,0,0) 
  orientation=(0,0,0), 
  no user defined matrix or transform, 
  no texture map." 
 
------------------------------------------ 
cheers, 
Nigel 
 
 

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