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I Introduction - Contents

I Introduction - Title Page

• I Introduction
• I.1 What is ROOT ?
• I.2 Objectives of this document
• I.3 Installation of VEGA/ROOT
• I.4 How to find information ?
• II An interactive session
• II.1 Basic intrinsic operations
• II.2 The interpreter CINT, graphical interaction through a few examples
• II.2.1 First very simple example
• II.2.2 Graphical output example
• II.2.3 Classes, methods and constructors
• II.2.4 ROOT related specifics
• II.2.5 Graphical output example: User interaction
• II.2.6 Second example : Building a multi-pad canvas
• II.2.7 Inheritance and data encapsulation
• II.2.7.1 Inheritance
• II.2.7.2 Method overriding
• II.2.8 ROOT related specifics
• II.3 An example of a macro
• II.3.1 C++ notions used: method overloading
• II.4 How to compile a macro ?
• II.4.1 Preparation of the script
• II.4.2 Compiling the script
• II.4.3 Compiling a more complex code
• III Hands on VEGA
• III.1 Preparation
• III.2 Opening a Frame Channel
• III.3 Extracting a frame using a frame channel and plotting it
• III.4 Extracting a vector using a frame channel and plotting it
• III.5 Extracting a 2D vector (image...) from the frame channel and plotting it
• III.6 Building a metadatabase for more complex tasks
• III.7 Extracting a frame with a condition or selection
• III.8 How to deal with slow monitoring data ?
• IV More on C++ (for the interested reader)
• IV.1 C++ notions used: classes, methods and constructors
• IV.2 C++ notions used: inheritance and data encapsulation
• IV.2.1 Inheritance
• IV.2.2 Method overriding
• IV.2.3 Public and private : data encapsulation
• IV.3 C++ notions used: operators new and delete
• V Accessing and managing Gravitational Waves data
• V.1 Accessing frames through the Framelib
• V.2 General scheme for data access
• V.3 Different information databases for different uses
• V.3.1 Simple access: direct files
• V.3.2 More complex case: metadatabase
• V.3.3 Full case: bookkeeping database
• V.4 Access to the data through a Frame Channel
• V.4.1 Opening a frame channel and connecting to an information database
• V.4.2 Accessing data through a Frame Channel
• V.4.2.1 Extracting frames
• V.4.2.2 Extracting vectors of any length
• V.4.2.3 Extracting n-tuples of SMS data
• V.4.3 Getting general information about the information database and it’s contents
• V.4.3.1 Getting the start time of the information database
• V.4.3.2 Printing information about the frame channel
• V.5 Dealing with selected or triggered data
• V.5.1 Condition information in the information database
• V.5.2 Condition Sets
• V.5.3 Extracting frames with a condition
• V.5.3.1 Direct methods
• V.5.3.2 Sequential methods
• V.5.4 Extracting vectors with a condition
• V.5.4.1 Direct methods
• V.5.4.2 Sequential methods
• V.5.5 Getting information about condition sets
• V.5.5.1 Printing the names of the conditions present in an information database
• V.5.5.2 Current status of a condition set
• V.6 N-tuples adapted for GW data analysis
• V.6.1 Building VNtuple
• V.6.2 Filling an N-tuple and getting data
• V.6.3 Drawing
• VI Analysis of data coming from a frame channel: the selector
• VII Representing Gravitational Waves data
• VII.1 Series plots
• VII.2 Graphical managers of frames
• VII.2.1 Definition of managers
• VII.2.2 Building a manager : the global gVM
• VII.2.3 General use
• VII.2.4 Drawing methods
• VII.2.4.1 Drawing contents and distribution of frame vectors
• VII.2.4.2 Drawing selected contents or distribution of a frame
• VII.2.4.3 Drawing 2D vectors (images or time-frequency plots)
• VII.2.5 Change of the plots attributes
• VII.2.6 Management of the plots produced
• VII.3 Representing slow monitoring data
• VIII Dealing with time
• VIII.1 Time when accessing data
• VIII.1.1 The reference time
• VIII.1.2 How to set a reference time
• VIII.2 Time when outputting information
• VIII.2.1 Plotting frames or vectors start time
• VIII.2.2 Plotting time on time series axis
• VIII.2.2.1 Interactively setting time display on the axis
• VIII.2.2.2 Set axis time parameters in a script
• VIII.2.2.2.1 Directly
• VIII.2.2.2.2 Through the style
• IX The Data Display as a data viewer
• IX.1 Goals
• IX.2 The Data Display inside VEGA
• IX.2.1 Displaying data from a frame channel source
• IX.2.2 Interaction with the produced plots
• IX.2.3 Using configuration files produced by the standalone dataDisplay application
• X Signal processing and algorithms
• XI The global variables often used
• XI.1 The active manager gVM
• XI.2 The active style gVStyle
• XII Examples of macros
• XII.1 Example 1 : Displaying a peak
• XII.2 Example 2 : scrolling data
• XII.3 Example 3 : histogramming some data and fitting the result
• XII.4 Example 4 : Extracting some slow monitoring data and doing some simple plots
• XII.5 Example 5 : Extracting a vector and plotting spectra
• XIII How to compile your own code for VEGA or use the VEGA libraries in your code
• XIII.1 Loading an existing shared library
• XIII.2 Compiling a script and making a shared library of it
• XIII.2.1 Preparation of the script
• XIII.2.2 Compiling the script
• XIII.2.3 Limitations
• XIII.3 Building a standalone executable
• XIII.3.1 Building an executable that is linked with the ROOT and VEGA libraries
• XIII.3.2 Options of the vega-config utility
• XIII.3.3 Using only a subset of capabilities
• XIII.4 Building a general shared library usable with VEGA
• I Appendix A : Local metadatabase structure and principles
• I.1 Metadatabase for easy data access
• I.1.1 Principle and structure
• I.1.2 Creation of a metadatabase
• I.1.3 Access to metadata
• I.1.3.1 Opening an existing database
• I.1.3.2 Extracting metadata
• I.1.4 Getting general information about the metadatabase and it’s contents
• I.1.4.1 Getting the start time of the metadatabase
• I.1.4.2 Printing information about the metadatabase
• I.2 Dealing with selected or triggered data
• I.2.1 Condition information in the metadatabase
• I.2.2 Extracting metadata with a condition
• I.2.2.1 Direct methods
• I.2.2.2 Sequential methods
• Table of Contents