View source for Neuroendoscope-igt

=functions=
# Interface
## Generated a separate image rendering window to display captured endoscope view
## Make module with four pages
# Display page
## size of the windows
## show/hide them
# Registration page
## interfaces for ICP registration
### i/f to select partical surface for ICP (optional)
### using tracker (currently using NaviTrack, but IGSTK is preferable)
### i/f to give good intial guess
### i/f to foot switch 
# Camera page
## Color Subframe 
### changing  color of the camera
## Shape Subframe
### changing the Focal Point
### change size of the camera
### 3D Gyro on/off switch
### Size changing of the Gyro
## Probe Subframe
### show/hide Sensor/Locator
### show/hide Probe 
### show/hide guide (pointing tool (double length of Sensor/Locator)
### virtual ruler (in 0.1 cm steps) changeable by slider
## View
### Set Lens Angle (related to the real endoscope lens angle)
### control graphics and real endoscope ()
### lock camera to the sensor, probe of the tracking device or Free view
### camera calibration of different views of the endoscope camera
#### Transform fisheye view to normal view
### flat colon screen (optional)
# Navigation
## view point control
## absolut and relative orientation and navigation of the camera
## Set points in DICOM(2D viewer) at a certain position and slice, remain until clean up
### Points in higher/lower slides appear
### cleanup function for all points/certain points
## fiducials creation
### related to a selected model
# Aditional features
## freeze/pause slicer display 
### no changes are possible
### save the current scene
## alarm function
### by an unstable magneticfield Alarm will occur