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NAME

d.explanation.plot - Draw a plot of multiple rasters to explain a raster operation for example a + b = c

KEYWORDS

display, manual, raster

SYNOPSIS

d.explanation.plot
d.explanation.plot --help
d.explanation.plot a=name [b=name] [c=name] [d=name] [raster_font=string] [operator_ab=string] [operator_bc=string] [operator_cd=string] [operator_font=string] [label_a=string] [label_b=string] [label_c=string] [label_d=string] [label_font=string] [label_size=float] [bottom=float] [--help] [--verbose] [--quiet] [--ui]

Flags:

--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

a=name [required]
Name of input raster map
b=name
Name of input raster map
c=name
Name of input raster map
d=name
Name of input raster map
raster_font=string
Font for raster numbers
operator_ab=string
Operator between a and b
operator_bc=string
Operator between b and c
operator_cd=string
Operator between c and d
operator_font=string
Font for operators
label_a=string
Label above the raster
label_b=string
Label above the raster
label_c=string
Label above the raster
label_d=string
Label above the raster
label_font=string
Font for labels
label_size=float
Text size for labels
bottom=float
Offset from the bottom (percentage)

Table of contents

DESCRIPTION

d.explantion.plot creates a plot of rasters and their relations which can serve as an explanation of a raster operation performed by a module or function.

Up to four rasters are supported. The default operators assume rasters to have the following relation:

a + b -> c

EXAMPLES

Example using generated data

In Bash:
g.region n=99 s=0 e=99 w=0 rows=3 cols=3
r.mapcalc expression="a = rand(0., 5)" seed=1
r.mapcalc expression="b = rand(0., 5)" seed=2
r.mapcalc expression="c = rand(0., 5)" seed=3
r.series input=a,b,c output=d method=average
In Python:
import grass.jupyter as gj
plot = gj.Map(use_region=True, width=700, height=700)
plot.d_background(color="white")
plot.run("d.explanation.plot", a="a", b="b", c="c", d="d", operator_font="FreeMono:Regular")
plot.show()

Figure: Resulting image for r.series

Example using artificial data

r.in.ascii input=- output=input_1 <<EOF
north: 103
south: 100
east: 103
west: 100
rows: 3
cols: 3
5 * 9
* 5 *
* 5 5
EOF
r.in.ascii input=- output=input_2 <<EOF
north: 103
south: 100
east: 103
west: 100
rows: 3
cols: 3
3 4 4
2 2 2
2 1 1
EOF
r.colors map=input_1,input_2 color=viridis
g.region raster=input_1
r.patch input=input_1,input_2 output=result
d.mon wx0 width=400 height=400 output=r_patch.png
d.explanation.plot a=input_1 b=input_2 c=result

Figure: Resulting image for r.patch

KNOWN ISSUES

SEE ALSO

g.region, d.frame, d.rast.num, d.grid, d.mon, v.mkgrid

AUTHOR

Vaclav Petras, NCSU GeoForAll Lab

SOURCE CODE

Available at: d.explanation.plot source code (history)

Latest change: Tuesday Oct 04 23:05:29 2022 in commit: b4cfa50ee83494c188c024548a4ff4f0600dc551


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