Removed unused variable.
Removed unused variables.  Without commenting them.
Removed condition that was always true.
Added default cases to switch statements.
Removed impossible test condition.
Added correct printf format.
Fixed bug with comparing difference of unsigned integers.
Initialize variables that might not get set otherwise.
Removed unused variables but kept the calls that created them in case they modify internal states.
Removed unused return variable, but keep nearest neighbor search.
Removed unused variables but kept calls.
Remove unused vars.  Restore ComputeLength() and remove unused method.
Added default to switch statements.
Initialized variables that might not get set otherwise.
No need to keep the button pointer passed back.
std::string::find_last_of() returns size_t and NOT unsigned int.
Virtual method prototypes were not correct wrt base class.
fixed error passing address of string instead of head of string as well as limited the string scan to fit in the allocated buffer.
Trigger biger update on CfdMeshScreen::Show()

This causes the graphics window to also update -- thereby
showing a mesh if one exists.
Change source point visualization to make better use of a single line strip