Projections and subfigures

Project several layers onto a two-dimensional map, apply a different aggregation method to each variable, and combine the results in one figure.

Select the projected layers

Use plopm -s with the range 1:22 to project the first 22 layers of the Norne model. Repeat the spatial selection once for each plotted variable:

plopm -i NORNE_ATW2013 -v 'index_k,permx,poro' -s ',,1:22 ,,1:22 ,,1:22' -agg 'first,arithmetic,max' -sg 1,3 -rot 65 -tr '[6456335.5,-3476500]' -x '[0,5600]' -y '[0,8800]' -fs 24,10 -c 'PuOr,vanimo,jet' -cbf '.0f,.0f,.2f' -cbn '2,4,8' -st 0 -t 'Top k values using first  Averaged permx using arithmetic  Values of porosity using max' -fz 18

Layer index, x-direction permeability, and porosity projected across the first 22 layers with three different aggregation methods.

Apply different aggregation methods

Use plopm -agg to select how values from several cells are combined at each projected map location. The methods are applied in the same order as the variables:

first

Selects the first value encountered along the projection direction. Here it displays the top index_k value.

arithmetic

Calculates the arithmetic mean. Here it averages permx across the selected layers.

max

Selects the maximum value. Here it displays the largest poro value across the selected layers.

The command therefore applies:

index_k -> first
permx   -> arithmetic
poro    -> max

If plopm -agg is omitted, plopm selects an aggregation method based on the variable type. Providing it explicitly is useful when comparing projection methods or when the scientific interpretation requires a specific calculation.

Arrange and format the subfigures

The remaining options control the combined figure:

• plopm -sg arranges the three maps in one row and three columns.

• plopm -rot rotates the Norne grid by 65 degrees.

• plopm -tr translates the rotated coordinates.

• plopm -x and plopm -y crop the displayed region.

• plopm -c assigns a different colormap to each variable.

• plopm -cbf applies separate colorbar number formats.

• plopm -cbn uses 2, 4, and 8 colorbar ticks for the three maps.

• plopm -st removes the common figure title.

• plopm -t assigns one title to each subplot. Two spaces separate consecutive titles.

The lists supplied to plopm -agg, plopm -c, plopm -cbf, and plopm -cbn correspond to the variables in the order supplied through plopm -v.

Reproduce this example

Run the complete workflow from the repository root:

. ./tests/scripts/docs_projections_subfigures.sh

View script

View raw script

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