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h1. Development Notes

This page summarizes development notes for the GammaLib software.

The page is organized following the module structure of GammaLib. Please use these pages to track your developments and any information related to your coding. For example, note the basic assumptions that have been made in implementing the code. Or note a kluge that was used. Also, specify if things need to be improved further.

If you add a new page, please put
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h2. Introduction

As introduction, here are a number of useful links and pages that introduce the style and methods that are used for the GammaLib developments.

* "Coding and Design Conventions":http://gammalib.sourceforge.net/coding/index.html
* [[Coding principles]]
* [[Coding techniques]]
* "C++ Style and Technique FAQ":http://www.stroustrup.com/bs_faq2.html


h2. General considerations

* [[Naming conventions]]
* [[Exceptions]]
* [[Printing]]

h2. Base classes (base)

* [[GBase]] - GammaLib interface class
* [[GRegistry]] - Registry interface class
* [[GContainer]] - Container interface class

h2. High-level analysis support

h3. Observation handling (obs)

* [[GObservations]] - Observation container
* [[GObservation]] - Abstract observation base class
* [[GTime]] - GammaLib time representation

h3. Model handling (model)

* [[GModels]] - Model container
* [[GModel]] - Abstract model base class
* [[GModelSky]] - Sky models
* [[GModelSpectralExpPlaw]] - Exponential power law spectrum
* [[GModelSpectralGauss]] - Gaussian (for lines)
* [[GModelSpectralNodes]] - Node function
* [[GModelSpectralLogParabola]] - Log parabola spectrum
* [[GModelSpectralPlaw]] - Power law spectrum (defined by intensity at pivot energy)
* [[GModelSpectralPlaw2]] - Power law spectrum (defined by integral flux)

h3. Skymap handling (sky)

* [[GRegion]] - Region handling
* [[GSkyDir]] - Sky direction handling

h3. Application handling (app)

h2. Instrument specific modules (inst)

* [[CTA interface]] (cta)
* [[Fermi/LAT interface]] (lat)
* [[CGRO/COMPTEL interface]] (com)
* [[COSI interface]] (cos)
* [[INTEGRAL/SPI interface]] (spi)
* [[Multi-wavelength interface]] (mwl)

h2. Core services

h3. Numerics (numerics)

h3. Linear algebra (linalg)

h3. Optimizers (opt)

* [[GOptimizerLM]] - Levenberg Marquardt optimizer

h3. Support functions (support)


h2. Interfaces

h3. FITS interface (fits)

h3. XML interface (xml)

h3. Virtual Observatory interface (vo)


h2. Test suites (test)

* [[Unit testing]]


h2. Python bindings

* [[Python 2.x versus Python 3.x]]