I am trying to compile a report containing chemical structures and statistical data calculated with R nodes.
Basically each line contains a Structure-ID, a picture of the structure and some further columns with data.
I would like to have the structure in a size, that's visually easily perceptiple, say 4 x 4 cm. I can set this in the report layout, but when I export the report to PDF or HTML, the pictures of the structures are of very low quality, i.e. very pixelated.
This is independent of the renderer I use, I tried RDKit and CDK.
I initially had this problem of poor quality images, as Bernd says, increase the resolution in the Data to Report node (in the KNIME Workflow, not in the Report designer) and I found a setting of 400 x 400 custom image scaling was very good. And in the report my structures were added as Dynamic Images.