Wire Cell Utilities

Overview

This package provides some utility classes and functions. The functionality is not specific to Wire Cell, per se.

Dependencies

This package has no dependencies on any other Wire Cell package and no outside dependencies other than C++.

Highlights

Some classes and functionality are worth highlighting here:

• Interface Wire Cell makes heavy use of the Interface software pattern. The entire iface package is mostly made of interface classes. Of particular note is the Interface interface class which is used to mark major component classes. Component classes can be instantiated while maintaining loose coupling between compilation units.

• NamedFactory is the mechanism to allow construction of an interface given its base class type and the "name" of its concrete implementation. Client code which instantiates an interface does not compile against the concrete implementation and only indirectly links against the shared library in which it resides.

• Point is a simple but useful implementation of a 3D vector.

• Units is a system of units. Any and all numeric quantities in Wire Cell which has units is assumed to be in this system of units

• Testing is some functions that facilitate writing tests such as Assert. Two more are TimeKeeper and MemUsage which are bundled together in ExecMon. As their names imply they help code measure how much time and memory it uses.