George,
On Tue, Jul 12, 2011 at 6:54 PM, George Papadatos <[email protected]> wrote:
> On a related topic, is it possible to depict an arbitrary string on a cairo
> canvas? I am thinking particularly depicting the name or ID of a molecule
> below its structure.
It's not there at the moment, but it's definitely possible. The
process would be similar to what I proposed to Peter. The additional
piece of information you'd need is that the MolDrawing instance also
has a boundingBoxes data member that is keyed by the molecule. You
could do something like this:
from rdkit.Chem.Draw.MolDrawing import Font
bbox = drawer.boundingBoxes[mol]
pos = (bbox[2]-bbox[0])/2,bbox[3]
font=Font(face='sans',size=12)
canvas.addCanvasText(legend,pos,font)
(you'll almost definitely have to experiment a bit to get the text
placed correctly)
-greg
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