Geoscience Reference
In-Depth Information
Figure 5:
Sequential color schemes with perceptual steps of saturation based on single
hues
5.6 Frequency Spectrum
We encode the parameter frequency spectrum with the graphic variable
texture. Our encoding covers an irregular point texture, and we vary the
density of the texture as the ratio of texture units to the background
according to the spectrum width (
Fig. 6
). Thus, a narrow frequency
