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Current orthogonal graph drawing algorithms produce drawings which are generally good. However, many times the quality of orthogonal drawings can be significantly improved with a postprocessing technique, called refinement, which improves aesthetic qualities of a drawing such as area, bends, crossings, and total edge length. Refinement is separate from layout and works by analyzing and then fine-tuning the existing drawing in an efficient manner. In this paper we define the problem and goals ofdoi:10.7155/jgaa.00026 fatcat:gbox5k7ifzcqpbq25czwyfoleu