“…The three intervals of purity are shown with a graduation of color based on the Hue-Saturation-Intensity model (useful to encode uncertainty, according to Brodlie, Osorio, and Lopes (2012)), from pale, in the case of low purities, to intense, in high purities. Similar color models and uncertainty management criteria have been adopted in other geospatial work such as in Pebesma, de Jong, and Briggs (2007) or in Laskey, Wright, and da Costa (2010), both focusing on continuous variables at pixel scale, whereas this work has adopted the parcel scale.…”