Program:       VTKVOLUME


#begin section overview
                                  OVERVIEW
                                  ========

VTKVOLUME is an experimental program which demonstrates the use of VTK
for visualizing data cubes.

To start VTKVOLUME on a TrueColor display,
type on the Hermes command line:

    vtkvolume ggiopt=fixcol   

If you omit the ggiopt= keyword, then you may start the application in
direct color which may cause color flashing between windows.

#end section overview

#begin section userinterface
                                  USER INTERFACE
                                  ==============

Menu "FILE"
-----------
  Input Set:         Load datacube or datacube section

  JPEG output:       save image in JPEG format

  PostScript output: save image in PostScript format

  Exit:              terminate program


Input field "BOX"
-----------------
  adjust extent of datacube section

Input field "Factor"
--------------------
  multipy pixel values before display

Slider "Threshold"
------------------
  cut-off value before display

Menu "Interaction"
------------------
  choose between VTK 'trackball' and 'terrain' interaction modes

#end section userinterface

#begin section about
Purpose:       simple experimental volume viewer based on VTK

Category:      ANALYSIS, DISPLAY

File:          vtkvolume.src

Author:        J.P. Terlouw

Version:       0.2

Updates:       Jan 11, 2008: JPT, Document created.
               May 22, 2008: JPT, Header access adjusted to new pygipsy.
               Jun 15, 2010: JPT, Suppress vtkAxesActor's axis labeling.

#end section about