[vtkusers] How to display contents of vtkImageData

[Elvis Dowson]

Thanks Rob,
                          That example code worked.

Here is the full program

# This example shows how to initialize and display a blank image using  
vtkImageData.
#
#

package require vtk

#  
= 
= 
= 
========================================================================
# Create image data
#  
= 
= 
= 
========================================================================
vtkImageData imageData
   imageData SetScalarTypeToUnsignedChar
   imageData SetDimensions 16 16 1
   imageData SetOrigin 0.0 0.0 0.0
   imageData SetSpacing 1.0 1.0 1.0
   imageData AllocateScalars

# Fill image with zeroes
set d 0
for {set i 0} {$i <  16} {incr i} {
   for {set p 0} {$p <  16} {incr p} {
   imageData SetScalarComponentFromFloat $i $p 0 0 $d
   }
}

# Create an image actor to display the image data
vtkImageActor imageActor
   imageActor SetInput imageData

#  
= 
= 
= 
========================================================================
# Create renderer, render window and add actors to the renderer
#  
= 
= 
= 
========================================================================

# Create the RenderWindow, Renderer and both Actors
#
vtkRenderer ren1
vtkRenderWindow renWin
   renWin AddRenderer ren1
vtkRenderWindowInteractor iren
   iren SetRenderWindow renWin

# Add the actors to the renderer, set the background and size
#
   ren1 AddActor imageActor
   ren1 SetBackground .1 .2 .4

   iren AddObserver UserEvent {wm deiconify .vtkInteract}
   iren SetDesiredUpdateRate 5

   ren1 ResetCamera
   ren1 ResetCameraClippingRange

   renWin Render

wm withdraw .



Best regards,

Elvis Dowson
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20081114/43ee9562/attachment.htm>