CQisMetric

DataType: CQisMetric

Use:
	To store a value that can be double (user unit) or integer (database unit) depending
	on the QisLib_SetVectorUnit setting.

Members:
	DBUnits (int) : Used when QisLib_SetVectorUnit is _QISUNIT_DBU. (Database units or
	DBU)
	UserUnits (double) : Used when QisLib_SetVectorUnit is _QISUNIT_UU. (User units or UU)

Notes:
	- Either DBUnits or UserUnits is valid at a given time but not both.
	- It is necessary that the user keeps track of the vector unit setting
	(QisLib_SetVectorUnit, which is _QISUNIT_UU by default) and accesses the correct
	member of a CQisMetric.

Example:
	CQisMetric x;
	if(GetVectorUnit() == _QISUNIT_DBU)
		x.DBUnits = 10;
	else
		x.UserUnits = 10.0;