"Tom Brinkman" wrote [...]
If you would like us to make any modifications or additions to this report before we do that, please email Ron or Tom.
I'd like to make a correction on this [...] Hopefully the PQS review info below helps in the clarification...
Physical Quantities System ------------- :Author: Andy Little :Review Manager: Need Volunteer
:Download: http://tinyurl.com/7m5l8
:Description: PQS (Physical Quantities System) is used for modelling physical-quantities in C++ programs. The advantages over using built-in types in the role include: trapping errors in dimensional analysis, detailed semantic specifications for reliable and repeatable conversions between units and self-documentation of source code. PQS is based around the principles and guidelines of the International System of Units (SI). The library predefines a large number of quantities, physical and maths constants using a common syntax. The library also includes (or will soon include) classes for manipulating quantities algebraically, for example angles (radians, steradians, degrees,minutes,seconds) and vectors, matrices and quaternions for more advanced modelling of physical systems.
Libraries under development ===========================
Geometry Library - Author - Andy Little (?)
To clarify ... My current plans are to develop a geometry library for/within the PQS library described above, rather than as a standalone effort. ( I will try to get some preliminary code for this into the next version of PQS (pqs_3_0_7), and hopefully that will help to clarify how/why/if a geometry library for Quantities (or possibly arbitrary UDT's) needs to differ from a classical geometry library. In brief; allowing quantities rather than assuming numeric types affects the interface and adds a burden on the implementation. My guess is that mathematicians would, quite reasonably, find that unacceptable. regards Andy Little