API for the technique described in Roberto Pinho, Maria Cristina F. de Oliveira, and Alneu de A. Lopes. 2009. Incremental board: a grid-based space for visualizing dynamic data sets. In Proceedings of the 2009 ACM symposium on Applied Computing (SAC '09). ACM, New York, NY, USA, 1757-1764. DOI=10.1145/1529282.1529679 http://doi.acm.org/10.1145/1529282.1529679