GammaLib

Coming back after a while to GammaLib coding I forgot what the difference between GCTAModelBackground and GCTAModelInstBackground was. After looking into the code I remembered that GCTAModelBackground was the class developed at the 2nd coding sprint that models the background using a cube file, while GCTAModelInstBackground was doing a similar thing, but using automatically the IRF. The second provides a clearer separation between observation realm and model realm, while the first provides full control over the background model. We likely would like to keep both.

I was thus considering whether it were not better to rename these classes to make things clearer.

For example:

• GCTAModelInstBackground could become GCTAModelIrfBackground
• GCTAModelBackground could become GCTAModelCubeBackground

The model types (which are in the XML file) should then probably also be renamed, for example:

• CTAIrfBackground for GCTAModelIrfBackground (now CTAInstBackground)
• CTACubeBackground for GCTAModelCubeBackground (now CTABackground)

Any opinions?