Guides

Bivariate colormaps

Map two variables to a 2D color scheme.

Bivariate mode encodes two variables at once: one maps to one color axis and the second to the other, producing a 2D color scheme. Use it to look for relationships — e.g. soil moisture vs. temperature, or chlorophyll vs. sea surface temperature.

Enabling bivariate mode

  1. Plot your first variable as usual
  2. Enable bivariate mode in the colorbar/colormap controls
  3. Pick the second variable from the selector
  4. Choose a color scheme from the bivariate palette list

Reading the bivariate colorbar

The colorbar becomes a 2D strip (a square-ish gradient):

  • The bottom-left corner represents the minimum of both variables
  • Moving along one axis changes the first variable's color contribution
  • Moving along the other axis changes the second variable's

Export

Bivariate plots can be exported like any other plot; the exported image draws the bivariate strip and its tick labels. See Animation & export.

Bivariate colors are harder to read for precise values — keep the univariate colorbar nearby or mention both variables and their ranges in your figure caption.
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