black box in MViewPane with empty RxnMolecule

If you have an MViewPane and you call MViewPane.add(0, new RxnMolecule()) you get a black box in the MViewPane. It would be better to just show an arrow in the middle of the screen.

Hello, will check what is going on.

Which method did you call exactly? MViewPane.add(int,Molecule) method does not exits in Marvin API. Although MViewPane is inherited several add methods from java.awt.Container (like any other Swing component) but these methods expects GUI components as parameters.


chemaxon.marvin.beans.MViewPane


java.awt.Container

setM(0, rxn)

Thanks for the bug report. We will fix it.


Until then, I suggest the following workaround:


Use RgMolecule instead of RxnMolecule for reactions.

Code:

MViewPane viewpanel = ... viewpanel.setM(0, new RgMolecule());

This bug is already fixed. Reaction arrow is drawn fine in current release.