E57 Foundation API v1.1.312  Aug. 10, 2011
bool allowHeteroChildren ( ) const

Get whether child elements are allowed to be different types?

See the class discussion at bottom of VectorNode page for details of homogeneous/heterogeneous VectorNode. The returned attribute is determined when the VectorNode is created, and cannot be changed.

Precondition:
The destination ImageFile must be open (i.e. destImageFile().isOpen()).
Postcondition:
No visible state is modified.
Returns:
True if child elements can be different types.
Exceptions:
E57_ERROR_IMAGEFILE_NOT_OPEN
E57_ERROR_INTERNALAll objects in undocumented state
See also:
VectorCreate.cpp example, E57_ERROR_HOMOGENEOUS_VIOLATION
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