I setup a workflow on KNIME Server which should be used via the webportal. A SMILES String is transfered into an image via “renderer to image”. Not all images can be created (e.g. as SMILES are incorrect or missing). Empty cells are not that critical during the workflow but when going to JAVA table viewer all empty cells will be replaced with a “missing x” gif, what looks unpleasant. Is there a way to remove this or can I implement a logic that the missing image is exchanged with another one?
I want to echange the
[x] e.g. with