OEBondDisplayPosition¶
This namespace controls how multi-line bonds are rendered. The
OEBondDisplayPosition only affects bonds of
the following types (as returned by
OE2DBondDisplay::GetDisplayType):
The concept of
Left and
Right are
relative to the “begin” and “end” atoms of the associated
OEBondBase. The side of
Left and
Right is defined
by standing on the “begin” atom and looking towards the “end”
atom.
The following figure shows how both
Left and
Right double
bonds can appear in a benzene ring.
Example of various multi-line bond positions¶
Note
The OE2DBondDisplay does not store pointers
to the “begin” and “end” atoms. The “begin” and “end” atoms can
be retrieved by accessing the associated
OEBondBase through the
OEBondDisplayBase::GetBond method and then
calling the OEBondBase::GetBgn and
OEBondBase::GetEnd methods respectively.
See also
The OEBondDisplayPosition namespace contains the
following constants:
Center
Renders a double bond so that the “begin” and “end” atom coordinates end up between each line of the double bond. See example in Figure: Example of a double bond rendered in the center.
Example of a double bond rendered in the center¶
Left
Renders a double bond by drawing a line between the “begin” and “end” atom coordinates, and then drawing a parallel line to the left of that line. See example in Figure: Example of a double bond rendered with its parallel line to the left.
Example of a double bond rendered with its parallel line to the left¶
Right
Renders a double bond by drawing a line between the “begin” and “end” atom coordinates, and then drawing a parallel line to the right of that line. See example in Figure: Example of a double bond rendered with its parallel line to the right.
Example of a double bond rendered with its parallel line to the right¶