Frag_ConnectionOrder Property

CDXML Name:ConnectionOrder
CDX Constant Name:kCDXProp_Frag_ConnectionOrder
CDX Constant Value:0x0505
Data Size:CDXObjectIDArray
Property of objects:kCDXObj_Fragment
First written/read in:ChemDraw 4.0 / 6.0


An ordered list of attachment points within a fragment.

Used, for example, to ensure that a fragment is connected in the right head-to-tail order to whatever object contains it. The list of attachment points (that is, Nodes with a kCDXProp_Node_Type of ExternalConnectionPoint) contained by this property is in the same order as the corresponding list of bonds stored in the containing Node's kCDXProp_Atom_BondOrdering property.

This property is meaningless for fragments that contain fewer that two attachment points, and should not be present in those cases.

If this property is absent:

The ordering of attachment points in this fragment is not considered to be significant (or there are fewer than two attachment points).


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