problems – perceptually unordered – perceptually nonlinear • benefits – fine-grained structure visible and nameable • alternatives – fewer hues for large-scale structure – multiple hues with monotonically increasing luminance for fine-grained – segmented rainbows good for categorical, ok for binned 11 [Transfer Functions in Direct Volume Rendering: Design, Interface, Interaction. Kindlmann. SIGGRAPH 2002 Course Notes] [A Rule-based Tool for Assisting Colormap Selection. Bergman,. Rogowitz, and. Treinish. Proc. IEEE Visualization (Vis), pp. 118–125, 1995.] [Why Should Engineers Be Worried About Color? Treinish and Rogowitz 1998. http://www.research.ibm.com/people/l/lloydt/color/color.HTM] [Ch 10: Color. Papers: Colors as Three Numbers. Munzner, 2015. http://www.cs.ubc.ca/~tmm/courses/547-15] Ordered color: Rainbow is poor default • problems – perceptually unordered – perceptually nonlinear • benefits – fine-grained structure visible and nameable • alternatives – fewer hues for large-scale structure – multiple hues with monotonically increasing luminance for fine-grained – segmented rainbows good for categorical, ok for binned 11 [Transfer Functions in Direct Volume Rendering: Design, Interface, Interaction. Kindlmann. SIGGRAPH 2002 Course Notes] [A Rule-based Tool for Assisting Colormap Selection. Bergman,. Rogowitz, and. Treinish. Proc. IEEE Visualization (Vis), pp. 118–125, 1995.] [Why Should Engineers Be Worried About Color? Treinish and Rogowitz 1998. http://www.research.ibm.com/people/l/lloydt/color/color.HTM]