On 26/01/2016 14:57, John M wrote:
You can't exactly replicate that because I really think the 'none'
hydrogen display is completely wrong as it changes the valence of atoms.
Not sure what you mean here. This is only for display. The hydrogens are
implicitly there, just not displayed, so no valences are being changed.
I suppose the common case for this is when displaying a query structure
(e.g. for SSS) when the only hydrogens you want to see are the ones
explicitly defined as part of the query.
However you can choose which atoms have their symbol displayed and by
definition hydrogens which allows you to have the 'all', 'heteroterm',
and 'hetero'.
It's best explained here:
https://github.com/cdk/cdk/wiki/Standard-Generator#symbol-visibility
Note the depiction generator has a short cut for the common case:
*withTerminalCarbons
<http://cdk.github.io/cdk/1.5/docs/api/org/openscience/cdk/depict/DepictionGenerator.html#withTerminalCarbons%28%29>*()
So it looks like its not possible to display a terminal atom (C, N ...)
without the hydrogens being displayed?
Tim
John
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