def OEAddHighlighting_OEResidue(adisp):
for res, color in zip(adisp.GetDisplayedResidues(), oechem.OEGetLightColors()):
pen = oedepict.OEPen(color, color, oedepict.OEFill_On, 1.0)
oegrapheme.OEAddResidueHighlighting(adisp, pen, res)
def render_atom_mapping(filename, molecule1, molecule2, new_to_old_atom_map, width=1200, height=1200):
"""
Render the atom mapping to a PDF file.
Parameters
----------
filename : str
The PDF filename to write to.
molecule1 : openeye.oechem.OEMol
Initial molecule
molecule2 : openeye.oechem.OEMol
Final molecule
new_to_old_atom_map : dict of int
new_to_old_atom_map[molecule2_atom_index] is the corresponding molecule1 atom index
width : int, optional, default=1200
Width in pixels
height : int, optional, default=1200
Height in pixels
"""
from openeye import oechem
# Make copies of the input molecules
molecule1, molecule2 = oechem.OEGraphMol(molecule1), oechem.OEGraphMol(molecule2)
oechem.OEGenerate2DCoordinates(molecule1)
oechem.OEGenerate2DCoordinates(molecule2)
old_atoms_1 = [atom for atom in molecule1.GetAtoms()]
old_atoms_2 = [atom for atom in molecule2.GetAtoms()]
# Add both to an OEGraphMol reaction
rmol = oechem.OEGraphMol()
rmol.SetRxn(True)
def add_molecule(mol):
# Add atoms
new_atoms = list()
old_to_new_atoms = dict()
for old_atom in mol.GetAtoms():
new_atom = rmol.NewAtom(old_atom.GetAtomicNum())
new_atoms.append(new_atom)
old_to_new_atoms[old_atom] = new_atom
# Add bonds
for old_bond in mol.GetBonds():
rmol.NewBond(old_to_new_atoms[old_bond.GetBgn()], old_to_new_atoms[old_bond.GetEnd()], old_bond.GetOrder())
return new_atoms, old_to_new_atoms
[new_atoms_1, old_to_new_atoms_1] = add_molecule(molecule1)
[new_atoms_2, old_to_new_atoms_2] = add_molecule(molecule2)
# Label reactant and product
for atom in new_atoms_1:
atom.SetRxnRole(oechem.OERxnRole_Reactant)
for atom in new_atoms_2:
atom.SetRxnRole(oechem.OERxnRole_Product)
# Label mapped atoms
index =1
for (index2, index1) in new_to_old_atom_map.items():
new_atoms_1[index1].SetMapIdx(index)
new_atoms_2[index2].SetMapIdx(index)
index += 1
# Set up image options
from openeye import oedepict
itf = oechem.OEInterface()
oedepict.OEConfigureImageOptions(itf)
ext = oechem.OEGetFileExtension(filename)
if not oedepict.OEIsRegisteredImageFile(ext):
raise Exception('Unknown image type for filename %s' % filename)
ofs = oechem.oeofstream()
if not ofs.open(filename):
raise Exception('Cannot open output file %s' % filename)
# Setup depiction options
oedepict.OEConfigure2DMolDisplayOptions(itf, oedepict.OE2DMolDisplaySetup_AromaticStyle)
opts = oedepict.OE2DMolDisplayOptions(width, height, oedepict.OEScale_AutoScale)
oedepict.OESetup2DMolDisplayOptions(opts, itf)
opts.SetBondWidthScaling(True)
opts.SetAtomPropertyFunctor(oedepict.OEDisplayAtomMapIdx())
opts.SetAtomColorStyle(oedepict.OEAtomColorStyle_WhiteMonochrome)
# Depict reaction with component highlights
oechem.OEGenerate2DCoordinates(rmol)
rdisp = oedepict.OE2DMolDisplay(rmol, opts)
colors = [c for c in oechem.OEGetLightColors()]
highlightstyle = oedepict.OEHighlightStyle_BallAndStick
#common_atoms_and_bonds = oechem.OEAtomBondSet(common_atoms)
oedepict.OERenderMolecule(ofs, ext, rdisp)
ofs.close()
def DepictMoleculeWithFragmentCombinations(report, mol, frags, opts): #fragcombs, opts):
""" This function was taken from https://docs.eyesopen.com/toolkits/cookbook/python/depiction/enumfrags.html with some modification
"""
stag = "fragment idx"
itag = oechem.OEGetTag(stag)
for fidx, frag in enumerate(frags):
for bond in frags[frag].GetBonds():
bond.SetData(itag, fidx)
# setup depiction styles
nrfrags = len(frags)
colors = [c for c in oechem.OEGetLightColors()]
if len(colors) < nrfrags:
colors = [c for c in oechem.OEGetColors(oechem.OEYellowTint, oechem.OEDarkOrange, nrfrags)]
bondglyph = ColorBondByFragmentIndex(colors, itag)
lineWidthScale = 0.75
fadehighlight = oedepict.OEHighlightByColor(oechem.OEGrey, lineWidthScale)
# depict each fragment combinations
for frag in frags:
cell = report.NewCell()
disp = oedepict.OE2DMolDisplay(mol, opts)
fragatoms = oechem.OEIsAtomMember(frags[frag].GetAtoms())
fragbonds = oechem.OEIsBondMember(frags[frag].GetBonds())
notfragatoms = oechem.OENotAtom(fragatoms)
notfragbonds = oechem.OENotBond(fragbonds)
oedepict.OEAddHighlighting(disp, fadehighlight, notfragatoms, notfragbonds)
bond = mol.GetBond(oechem.OEHasBondIdx(frag))
atomBondSet = oechem.OEAtomBondSet()
atomBondSet.AddBond(bond)
atomBondSet.AddAtom(bond.GetBgn())
atomBondSet.AddAtom(bond.GetEnd())
hstyle = oedepict.OEHighlightStyle_BallAndStick
hcolor = oechem.OEColor(oechem.OELightBlue)
oedepict.OEAddHighlighting(disp, hcolor, hstyle, atomBondSet)
#oegrapheme.OEAddGlyph(disp, bondglyph, fragbonds)
oedepict.OERenderMolecule(cell, disp)
# depict original fragmentation in each header
cellwidth, cellheight = report.GetHeaderWidth(), report.GetHeaderHeight()
opts.SetDimensions(cellwidth, cellheight, oedepict.OEScale_AutoScale)
opts.SetAtomColorStyle(oedepict.OEAtomColorStyle_WhiteMonochrome)
bondlabel = LabelBondOrder()
opts.SetBondPropertyFunctor(bondlabel)
disp = oedepict.OE2DMolDisplay(mol, opts)
#oegrapheme.OEAddGlyph(disp, bondglyph, oechem.IsTrueBond())
headerpen = oedepict.OEPen(oechem.OEWhite, oechem.OELightGrey, oedepict.OEFill_Off, 2.0)
for header in report.GetHeaders():
oedepict.OERenderMolecule(header, disp)
oedepict.OEDrawBorder(header, headerpen)