+ + +
+
+ +
+
+ +
+ +
+ + +
+ +
+ + +
+
+ + + + + +
+ +
+

Colormaps and subfigures#

+

Use named colormaps, RGB values, or hexadecimal colors to customize discrete +and continuous variables. Combine several plots in one figure with either +individual or shared colorbars.

+
+

Select colors#

+

Use plopm -c with:

+
    +

  • A Matplotlib colormap name, such as viridis or Spectral.

    • +

  • A Colorcet colormap name, such as cet_glasbey_bw.

    • +

  • RGB colors written as red;green;blue values.

    • +

  • Hexadecimal colors written as #RRGGBB.

    • +
+

Separate colors belonging to one discrete palette with spaces. Separate the +color specifications for different plots with commas.

+
+
+

Compare three color specifications#

+

Plot satnum, fipnum, and disperc with a custom RGB palette, a +Colorcet colormap, and two hexadecimal colors:

+
plopm -i SPE11B -v satnum,fipnum,disperc -c '193;147;56 127;148;191 193;127;97 181;73;57 81;124;66 101;64;147 134;133;130',cet_glasbey_bw,'#b6c406 #fffa86' -sg 3,1 -rdl 1 -cbn 3,6,2 -cbf .0f,.0f,.1f -fs 7,4
+
+
+
+SPE11B variables displayed with RGB, Colorcet, and hexadecimal colors + +
+

satnum uses a custom RGB palette, fipnum uses +cet_glasbey_bw, and disperc uses two hexadecimal colors.#

+
+
+

The custom RGB palette contains seven colors, one for each SPE11 facies:

+
193;147;56
+127;148;191
+193;127;97
+181;73;57
+81;124;66
+101;64;147
+134;133;130
+
+
+

The remaining options control the combined figure:

+
    +

  • plopm -sg arranges the three plots in three rows and one column.

    • +

  • plopm -rdl removes repeated axis labels.

    • +

  • plopm -cbn sets 3, 6, and 2 colorbar ticks for the three plots.

    • +

  • plopm -cbf sets the corresponding colorbar number formats.

    • +

  • plopm -fs sets the figure size.

    • +
+
+

Note

+

Quote color specifications containing spaces, semicolons, or hexadecimal +values so the shell passes them to plopm as one argument.

+
+
+
+

Subfigures with individual colorbars#

+

Combine static and dynamic quantities in one figure. When the plotted +quantities use different value ranges or colormaps, each subplot has its own +colorbar:

+
plopm -i SPE11B -v poro,sgas,sgas -sg 1,3 -r 0,1,5 -st 0 -fs 25,2 -c terrain,jet,jet -cbn 5 -cbf .1f -fn poro_sgas
+
+
+
+SPE11B porosity and gas saturation shown in three subfigures + +
+

Porosity and gas saturation at two restart steps, displayed with individual +colorbars.#

+
+
+

The command applies the values in each comma-separated list in subplot order:

+
    +

  • poro is plotted at restart step 0 with the terrain colormap.

    • +

  • The first sgas plot uses restart step 1 and the jet colormap.

    • +

  • The second sgas plot uses restart step 5 and the jet colormap.

    • +

  • plopm -sg arranges the three plots in one row.

    • +

  • plopm -st removes the common figure title.

    • +

  • plopm -fn sets the output filename to poro_sgas.

    • +
+
+
+

Subfigures with a shared colorbar#

+

When subfigures show the same quantity from different inputs or restart steps, +use one shared colorbar. Position and size the shared colorbar with +plopm -cbp:

+
plopm -i 'SPE11B SPE11C SPE11B SPE11C' -sg 2,2 -v temp -s ',1, ,14, ,1, ,14,' -r 0,0,5,2 -st 0 -fs 10,10 -asp 0 -rdl 1 -c cet_diverging_rainbow_bgymr_45_85_c67_r -cbn 5 -cbp 0.15,0.92,0.7,0.02 -cbl 'Temperature [$^o$C]' -t 'SPE11B (initial temperature)  SPE11C (initial temperature)  SPE11B (end of simulation, 25 y)  SPE11C (end of simulation, 25 y)' -fz 15
+
+
+
+SPE11B and SPE11C temperature at initial and final restart steps + +
+

Initial and final temperatures for SPE11B and SPE11C, displayed with one +shared colorbar.#

+
+
+

The four inputs, slices, restart steps, and titles correspond by position:

+
SPE11B -> slice ,1,  -> restart 0 -> initial SPE11B temperature
+SPE11C -> slice ,14, -> restart 0 -> initial SPE11C temperature
+SPE11B -> slice ,1,  -> restart 5 -> SPE11B after 25 years
+SPE11C -> slice ,14, -> restart 2 -> SPE11C after 25 years
+
+
+

The shared-colorbar options are:

+
    +

  • plopm -cbp sets left,bottom,width,height in figure coordinates.

    • +

  • plopm -cbn sets the number of colorbar ticks.

    • +

  • plopm -cbl sets the shared colorbar label.

    • +

  • plopm -c applies one common colormap to all four temperature maps.

    • +
+

plopm -asp disables equal axis scaling, while +plopm -rdl removes repeated subplot labels. Two spaces separate the +four titles supplied through plopm -t.

+
+
+

Reproduce this example#

+

Run the complete workflow from the repository root:

+
. ./tests/scripts/docs_colormaps-subfigures.sh
+
+
+
+
+
+

View script

+
+
+

View raw script

+
+
+
+

Back to the examples gallery

+
+
+ + +
+ + + + + + + +
+ + + + + + + +
+
+ +
+ +