Dimitri,

This is yet another demonstration of why chemists don't normally do 2D
depictions of molecules that include Hs: things are just too crowded.

Even quite good 2D coordinate generators like MarvinSketch have problems
with this:
[image: Inline image 1]

Why do you want 2D drawings that include H atoms?

-greg


On Wed, Sep 7, 2016 at 9:22 PM, Dimitri Maziuk <dmaz...@bmrb.wisc.edu>
wrote:

> :(
>
> Here's one where AddHs() really breaks things. It is an unpleasant
> molecule to draw.
>
> So it looks like the issue is that
> - for CID 112084 call to AddHs() changed the layout (arguably not for
> the better), whereas
> - for CID 260719 it didn't change the layout/shorten the bonds when it
> really should have.
>
> For reference, CID260719.ob.svg is the other toolkit's rendering of the
> same file with (atom indexes changed to green from OB's default red).
>
> --
> Dimitri Maziuk
> Programmer/sysadmin
> BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu
>
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