CTK Transfer function widget

Objective

• Enhance the CTK Transfer Function Widgets
• Improve design/structure of the widget
• Integrate it in GoFigure2 ( Wiki page ) for multichannel images visualization
• Source code

 CTK GIT: git@github.com:commontk/CTK.git

 GoFigure2 SVN: https://gofigure2.svn.sourceforge.net/svnroot/gofigure2 

• Datasets

 File:Datasets.zip

Approach, Plan

• Discuss with Julien, Ron, Sean, Steve and Arnaud about the needs, structure, etc.
• Get the CTK color and piecewise transfer functions working
• The transfer functions background should be the image of interest's histogram
• Implement the color transfer function widget in GoFigure2 to visualize multichannel images

Progress

• NEW FEATURES
  • Dragging points
    • Stop Mode
    • Switch Mode
    • Draw Mode
  • Possibility to draw a Transfer Function "on the fly"
  • Multiple points selection/deletion
  • Current point highlighted
  • Select all points
  • Drag all selected points
  • Histrogram as background (in Slicer)
• TO DO
  • Fix some bugs
  • Add more mouse interaction
  • Zoom on ROI of the TF
  • Multiple points selection by drawing ROI
  • ...
  • Any suggestion is welcome!