AcRxObject AcGiDrawable AcHeapOperators AcDbObject AcDbEntity AcDbCamera
class AcDbCamera : public AcDbEntity;
AcCamera.h
The camera entity represents a named view in model space. Camera entities are not persisted into the drawing file. A camera entity is created when the CAMERADISPLAY sysvar is set to 1. When a named view is deleted its corresponding camera is also deleted, and vice versa.
Rather than creating a camera entity directly, it is recommended instead that you simply create a named view.
By default, camera entities are created on a hidden layer. Moving a camera entity to another layer is not recommended.