Edouard Tisserant [Wed, 14 Feb 2018 14:50:10 +0100] rev 1933
Factorized duplicated code
Edouard Tisserant [Wed, 14 Feb 2018 14:48:40 +0100] rev 1932
Better variable naming, and small optimization.
Edouard Tisserant [Tue, 13 Feb 2018 14:01:20 +0100] rev 1931
Unclutter graphics package scope.
Moved some import statements from "graphics" package to "viewer" module.
It also avoid systematic import of everything in graphics when we only need one submodule.