Contents

• Acknowledgements
• INTRODUCTION TO CGS4DR
  • Introduction
    • Introduction to Portable--CGS4DR
    • What It Can Do
    • Version History
    • Some Basic Definitions
    • Files Used by the System
    • How Does Portable--CGS4DR Select Calibration Frames?
  • Reducing Astronomical Array Data
    • Eliminating Data with Bad Pixel Masks
    • Reducing a Bias
    • Linearising the Data
    • Reducing a Dark
    • Reducing a Flat
  • Reducing Spectroscopic Array Data
    • Reducing an Object, Sky or Arc
    • Wavelength Calibration
    • Sky Subtraction and the Propagation of Variance
    • Ratio-ing by a Standard Star
    • Flux Calibration
    • Extraction of Nodded Spectra
• THE COMMAND LINE INTERFACE
  • The Command Line Interface
    • Introduction
    • Starting the Software
    • Changing System Defaults
    • Running the Demo
    • Set Nocheckpars and Other Defaults
    • A Typical User Session
  • Control & Setup Procedures
    • start_autoreduce
    • stop_autoreduce
    • drpause
    • drcontinue
    • set_reduction_sequence
    • get_reduction_sequence
    • set_file_selection
    • get_file_selection
    • set_ff_normalisation
    • get_ff_normalisation
    • set_wavelength_calib
    • get_wavelength_calib
    • set_bad_pixel_mask
    • get_bad_pixel_mask
    • set_polyfit
    • get_polyfit
    • set_extract_spectrum
    • get_extract_spectrum
    • save_config
    • restore_config
    • set_integration_display
    • get_integration_display
    • set_observation_display
    • get_observation_display
    • set_group_display
    • get_group_display
    • set_spectrum_display
    • get_spectrum_display
  • Reduction Procedures
    • file_standard
    • file_obs
    • file_calib
    • bad_observation
    • list_index
    • list_index2
    • calibrate
    • cgs4list
  • Queue Procedures
    • enter_string
    • enter_mask
    • cancel_mask
    • enter_config
    • cancel_config
    • enter_skywt
    • cancel_skywt
    • enter_varwt
    • cancel_varwt
    • enter_obs_range
    • cancel_obs_range
    • enter_int_range
    • cancel_int_range
    • enter_end_range
    • cancel_end_range
    • enter_endgroup
    • cancel_endgroup
    • cancel_all_qentries
    • list_queue
  • Graphics Procedures
    • lut
    • plot_image
    • plot_graph
    • plot_overgraph
    • plot_histogram
    • plot_surface
    • plot_contour
    • cursor
    • print_ps
  • More on Graphics
    • The Plotting Task
    • Types of Plot and Units
    • The Viewports
    • Initialising the Display
    • The Set Commands
    • The Get Commands
    • How to Enable Overgraphs
    • Some Examples of Using the Task
      • Getting the Viewport Configuration
      • Plotting Error Bars
      • Plotting a Sub-Area of an Image in Axis Units
      • Plotting a Sub-Area of an Image in Pixel Units
      • Plotting to a Given Scale
      • Changing the Default Title
      • Printing PostScript Graphics
  • Manipulating the Noticeboards
    • How to Manipulate the Noticeboards Directly
• THE Tcl/tk INTERFACE
  • Introduction to Tcl/tk
    • Historical Perspective
    • A Few Words on GUIs
    • The Portable-CGS4DR Style
      • The Title Bar
      • The Menu Bar
      • The Text Pane
      • The Widget Tree
    • Starting the Software
    • Common Problems Upon Startup
    • Running the Tasks Individually
  • The RED4 Interface
    • The Reduction Task Interface
  • The QMAN Interface
    • The Queue Manager Task Interface
      • Observation Range
      • End Group
      • Queue Position
      • List Queue
      • Remove All Entries
      • Interrupt
      • Qman Options
  • The CRED4 Interface
    • The Control Task Interface
      • Start Reduction
      • Pause Reduction
      • Status Label
      • Setup
      • Display
      • Astro Params
      • Reduction Params
      • Configs
      • Cred4 Options
  • The P4 Interface
    • The Plotting Task Interface
      • Data Entry
      • Port
      • Plane
      • Type
      • Autoscale
      • Plot Whole Array
      • Plot
      • Clear Port
      • Set Port
      • Set Lut
      • Set Colours
      • Configs
      • P4 Options
  • Miscellaneous
    • May I run the GUI More Than Once?
    • May I Run the Software in Batch?
    • Do I Still Need to Run the Kill Script?
    • How Do I Print Graphics?
    • How Do I List the Noticeboard?
    • How Do I Reset the Tasks?
    • How Do I Check the Status of the Tasks?
    • How Do I Read Old Index Files from VMS?
    • How Do I List the Available Masks and Colour Tables?
    • How Do I Re-Normalize a FLAT Field?
    • How Do I Start from Scratch?
  • References

• Acknowledgements