Cheminformatics Tutorials - Herong's Tutorial Examples - v2.01, by Herong Yang
"obabel ... -o svg -xi" - Show Atom Indices in SVG
This section provides a tutorial example how to generate a SVG picture of a molecule structure including atom indices using the Open Babel 'obabel ... -o svg -xi' command.
If you want to atom indices to be displayed in molecule SVG picture, you can use the "-xi" option with the "-o svg" output format in Open Babel command like "obabel ... -o svg -xi".
Atom indices are sequence numbers of atoms representing the order atoms listed in the source data.
For example, the following command generates a SVG picture of the tyrosine molecule from a SMILES string:
herong$ obabel "-:c1cc(ccc1CC(C(=O)O)N)O" -o svg -O tyrosine-i.svg -xi 1 molecule converted
Open the output file, tyrosine-i.svg, in a Web browser, you see tyrosine molecule structure displayed with SMILES index number on each atom.
Table of Contents
SMILES (Simplified Molecular-Input Line-Entry System)
Open Babel: The Open Source Chemistry Toolbox
Using Open Babel Command: "obabel"
►Generating SVG Pictures with Open Babel
"obabel -o svg" - Molecule Picture in SVG
"obabel -:... -o svg" - Generate SVG from SMILES
►"obabel ... -o svg -xi" - Show Atom Indices in SVG
"obabel ... -o svg -xS" - Ball/Stick Depiction in SVG
"obabel ... -o svg -xX" - Hide Implicit H in SVG
"obabel ... -o svg -xC" - Hide Terminal C in SVG
"obabel ... -o svg -xP300" - Control Image Size
"obabel ... -o svg" - Two "svg" XML Tag Levels
"obabel ... -o svg -xd" - Hide Molecule Name
"babel ... -o svg -xd -xP300" - Open Babel 2.4 Bug
Scale SVG Images using "viewBox" Attribute
Substructure Search with Open Babel
Similarity Search with Open Babel
Fingerprint Index for Fastsearch with Open Babel
Stereochemistry with Open Babel
Command Line Tools Provided by Open Babel
RDKit: Open-Source Cheminformatics Software
rdkit.Chem.rdchem - The Core Module
rdkit.Chem.rdmolfiles - Molecular File Module
rdkit.Chem.rdDepictor - Compute 2D Coordinates
rdkit.Chem.Draw - Handle Molecule Images
Molecule Substructure Search with RDKit
rdkit.Chem.rdmolops - Molecule Operations
Daylight Fingerprint Generator in RDKit
Morgan Fingerprint Generator in RDKit
RDKit Performance on Substructure Search
Introduction to Molecular Fingerprints
OCSR (Optical Chemical Structure Recognition)
AlphaFold - Protein Structure Prediction