Operation GM_Envelope envelope (), in Class GM_Object

Documentation
The operation "envelope" shall return the minimum bounding box for this GM_Object. This shall be the coordinate region spanning the minimum and maximum value for each ordinate taken on by DirectPositions in this GM_Object. The simplest representation for an envelope consists of two DirectPositions, the first one containing all the minimums for each ordinate, and second one containing all the maximums. However, there are cases for which these two positions would be outside the domain of validity of the object's coordinate reference system. This operation is included here only as an interface, as applications may chose to implement in different manners.
GM_Object::envelope() : GM_Envelope


Protocol Qualification 
Exceptions Size 
Time ConcurrencySequential
Export ControlPublicAccess  


Preconditions


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Semantics