Herve wrote:

> But my users require support from information coming from MDL products
> i.e. mol description in V2000 AND V3000. No way for me to force them to
> get only V2000.

Just for my own edification ...

Q: Are they all 2D files, or are some of the 3D files?

Q: When Chime reads a 2D file does it display it using the RasMol 3D
engine? Or do they have a separate 2D renderer built into Chime?


> File containing more than one molecule
> The sample file contains more than one molecule because it's an "SD file".
> SD file is basically a grouping of mol descriptions in a file with some
> extra information (the information you want btw ...). All the molecules
> are separated with a specific string: $$$$. Ok ... it's basic but it seems
> to be widely used in industry as a way to exchange mol description.

Yes. I have the MDL ctfile specification.

> What does Chime do?
> MDL provides a number of products dealing with chemistry. They provide
> chemical entity recognition component and a name to structure component.
> The name to structure sent back either a mol description or a chime
> string. A chime string is an MDL encrypted, compressed version of a mol
> description (MDL proprietary algorithm). Chime strings are also properly
> displayed by the MDL chime plug-in.

I understand that 'Chime string' is an encryptedversion of a 'mol
description'

But I am not clear what a 'mol description' is.

Q: Are you using the term 'mol description' to refer to the molecular
model file format? In this case .mol/V2000/V3000 ?

> But chime strings does not seem to be
> standard. By dealing with mol descriptions, much more things can be done:
> SD file generation for post processing ... and display with another
> component ...like JMOL!
>
> Hope this clarifies ...

I am still somewhat confused :-(

Let's try a different approach.

You sent me a file that contains 8 molecular models. They contain
different molecules, not different conformations of the same molecule.

When Jmol opens this file it should:

1. read and display only the first molecular model

2. read all of the atoms in all of the molecular models into the same Jmol
model and display them all at the same time ... essentially merging all of
the files together.

3. read the molecular models independently into individual Jmol 'models'

4. do something else

Q: Which of the 4 choices above best describes your desire?


Miguel



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