Creating a 3-D perspective image
Create 3-D perspective image or surface mesh from a grid
pygmt.Figure.grdview method takes the
perspective parameter changes the azimuth and elevation of the
viewpoint; the default is [180, 90], which is looking directly down on the
figure and north is “up”. The
zsize parameter sets how tall the
three-dimensional portion appears.
The default grid surface type is mesh plot.
fig = pygmt.Figure() fig.grdview( grid=grid, # Sets the view azimuth as 130 degrees, and the view elevation as 30 # degrees perspective=[130, 30], # Sets the x- and y-axis labels, and annotates the west, south, and east # axes frame=["xa", "ya", "WSnE"], # Sets a Mercator projection on a 15-centimeter figure projection="M15c", # Sets the height of the three-dimensional relief at 1.5 centimeters zsize="1.5c", ) fig.show()
The grid surface type can be set with the
The default CPT is turbo and can be customized with the
plane parameter sets the elevation and color of a plane that provides
a fill below the surface relief.
perspective azimuth can be changed to set the direction that is “up”
in the figure. The
contourpen parameter sets the pen used to draw contour
lines on the surface.
pygmt.Figure.colorbar can be used to add a
color bar to the figure. The
cmap parameter does not need to be passed
again. To keep the color bar’s alignment similar to the figure, use
fig = pygmt.Figure() fig.grdview( grid=grid, # Set the azimuth to -130 (230) degrees and the elevation to 30 degrees perspective=[-130, 30], frame=["xaf", "yaf", "WSnE"], projection="M15c", zsize="1.5c", surftype="s", cmap="geo", plane="1000+ggrey", # Set the contour pen thickness to "0.1p" contourpen="0.1p", ) fig.colorbar(perspective=True, frame=["a500", "x+lElevation", "y+lm"]) fig.show()
Total running time of the script: ( 0 minutes 2.754 seconds)