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 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"); OEPrepareDepiction(mol); unsigned int width = 200; unsigned int height = 200; OE2DMolDisplayOptions opts(width, height, OEScale::AutoScale); OE2DMolDisplay disp(mol, opts); OEAnnotateDepictionProblems(disp); OERenderMolecule("OEAnnotateDepictionProblems.png", disp);
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.