bool OEAnnotateDepictionProblems(OE2DMolDisplay &disp)

Annotates various depiction problems on the molecule. Currently it can mark double bonds which are not depicted correctly according to their cis/trans stereo specifications.


The OE2DMolDisplay object being annotated.

The following code snippet show how to use the OEAnnotateDepictionProblems function. See the generated image in Figure: Example of incorrect trans double bond depiction. The highlighting indicates that the double bond specified in the input SMILES string as trans is depicted as cis.

OEGraphMol mol;
OESmilesToMol(mol, "C1CCC2C/C=C/CCCC2C1");

const auto width  = 200u;
const auto height = 200u;
OE2DMolDisplayOptions opts(width, height, OEScale::AutoScale);

OE2DMolDisplay disp(mol, opts);

OERenderMolecule("OEAnnotateDepictionProblems.png", disp);

Example of incorrect trans double bond depiction


OEDepict TK uses built-in ring system templates when generating 2D coordinates. Generating 2D coordinates which are inconsistent with cis/trans stereo bond specification can occur due to a missing ring template. The OEPrepareDepiction function throws a warning when this problem occurs.