Re: [OpenBabel-Devel] Modest Proposal - Gen3D won't do conformer searching

2018-06-15 Thread Geoffrey Hutchison
> In addition it would be nice if the 3D generation would not crash every once > in a while (at least it does in Avogadro). I guess due to numerical issues. If you have an example that causes a crash, please report it otherwise we can't fix it. We fixed several bugs this spring thanks in part to

Re: [OpenBabel-Devel] Modest Proposal - Gen3D won't do conformer searching

2018-06-15 Thread Stefano Forli
Hi, I agree with what has been said so far, and the key point for me is to have a tool that does what's expected. If the method used to generate the initial conformation creates reasonable bond angles and distances, then no minimization should be performed. Although, if that doesn't happen, g

Re: [OpenBabel-Devel] Modest Proposal - Gen3D won't do conformer searching

2018-06-14 Thread David van der Spoel
Den 2018-06-15 kl. 01:20, skrev Geoffrey Hutchison: Hi, One of the GSoC projects this summer is an improved fragment-based coordinate generation method. While that's going, I've been reading a lot of papers on 3D coordinate generation. As near as I can tell, no other program attempts to do a

Re: [OpenBabel-Devel] Modest Proposal - Gen3D won't do conformer searching

2018-06-14 Thread Koes, David
Not optimizing will result in a lousy conformer. The default should not generate poor bond lengths or angles. I’m less concerned about torsions. -Dave > On Jun 14, 2018, at 5:20 PM, Geoffrey Hutchison > wrote: > > Hi, > > One of the GSoC projects this summer is an improved fragment-based coo

[OpenBabel-Devel] Modest Proposal - Gen3D won't do conformer searching

2018-06-14 Thread Geoffrey Hutchison
Hi, One of the GSoC projects this summer is an improved fragment-based coordinate generation method. While that's going, I've been reading a lot of papers on 3D coordinate generation. As near as I can tell, no other program attempts to do a conformer search as part of the 3D generation. Every